{"id":70169,"date":"2024-10-15T18:00:00","date_gmt":"2024-10-15T16:00:00","guid":{"rendered":"http:\/\/34545ce0-3aca-4b3a-980d-7e396bb07a52"},"modified":"2024-10-15T18:25:30","modified_gmt":"2024-10-15T16:25:30","slug":"are-wind-tunnel-sensors-on-your-bike-the-future-of-aero-tech-body-rocket-first-ride","status":"publish","type":"rss_feed","link":"https:\/\/c01.purpledshub.com\/cyclingplus\/rss_feed\/are-wind-tunnel-sensors-on-your-bike-the-future-of-aero-tech-body-rocket-first-ride\/","title":{"rendered":"Are wind tunnel sensors on your bike the future of aero tech? | Body Rocket first ride"},"content":{"rendered":"<p class=\"rssexcerpt\">Is on-bike aero measurement ready for lift-off? <\/p><p class=\"rssauthor\">By Simon von Bromley\n      <\/p><p class=\"rssbyline\">Published: Tuesday, 15 October 2024 at 16:00 PM<\/p><hr class=\"no-tts wp-block-separator\"\/><?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\"?>\n<!DOCTYPE html PUBLIC \"-\/\/W3C\/\/DTD HTML 4.0 Transitional\/\/EN\" \"http:\/\/www.w3.org\/TR\/REC-html40\/loose.dtd\">\n<html><body><p>What if you could have a wind tunnel on your bike? With its new real-time aerodynamic drag measurement system, Body Rocket is promising just that.<\/p><p>A number of brands have promised to bring these capabilities to cycling in recent years, but so far, none have gone mainstream. This time, though, it could be different.<\/p><p>Body Rocket has been working on its system for a number of years, but when the brand finally offered us the chance of a test ride, our interest was piqued.<\/p><p>To find out whether we might all be riding around with drag sensors on our bikes in the near future, I headed to Palmer Park Velodrome, in Reading.<\/p><p>Most importantly, I found that Body Rocket\u2019s system worked. The brand also had an unexpected trick up its sleeve in the form of an AI-powered assistant app.<\/p><p>The question remains, though \u2013 what do Body Rocket and other aero sensor manufacturers need to do for their technology to finally go mainstream?<\/p><figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\"><iframe loading=\"lazy\" title=\"Go FASTER With This NEW Cycling Tech\" width=\"800\" height=\"450\" src=\"https:\/\/www.youtube.com\/embed\/lRN6JDdw1Oc?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen=\"\"\/><\/div><\/figure><h2 class=\"wp-block-heading\">What is Body Rocket?<\/h2><figure class=\"wp-block-image size-full\"><figcaption class=\"wp-element-caption\">The Body Rocket system places sensors under the saddle and handlebar to measure the live drag force of air resistance on the rider. <span\/><\/figcaption><\/figure><p>Body Rocket is a live aerodynamic drag measurement system designed for use on road and triathlon bikes.<\/p><p>Most existing aero sensors \u2013 such as the <a href=\"https:\/\/www.bikeradar.com\/news\/notio-konect-provides-all-your-aero-data-without-a-wind-tunnel\">Notio Konect<\/a> or aptly named <a href=\"https:\/\/www.bikeradar.com\/news\/aerosensor-aerodynamic-cycling-system\">Aerosensor<\/a> \u2013 rely upon measuring wind data via probes typically positioned on the front of your bike.<\/p><p>By combining this with power and tyre rolling resistance data, these systems can attempt to calculate a rider\u2019s coefficient of aerodynamic drag (CdA).<\/p><p>In contrast, Body Rocket\u2019s system takes direct force measurements at the places where the rider contacts the bike \u2013 namely, the saddle, the handlebar and the pedals.<\/p><figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1707\" src=\"https:\/\/c02.purpledshub.com\/uploads\/sites\/39\/2024\/10\/08082024_EOS-R_IMG_9523-scaled.jpg\" alt=\"Body Rocket stem sensor on Giant Propel Advanced SL\" class=\"wp-image-885138\"\/><figcaption class=\"wp-element-caption\">This custom stem houses sensors that measure drag force at the front of the bike, as well as the brains of the system. <span>Kai Eves \/ Our Media<\/span><\/figcaption><\/figure><p>The sensors are akin to the scales a rider and their bike are placed on in a wind tunnel (despite most pictures of wind tunnels focusing on the wind and turbine, the device taking measurements is the scale).<\/p><p>This, Body Rocket says, is what makes its system unique.<\/p><p>Because it directly measures the resistive force of the air acting on the rider as they pedal through it, it doesn\u2019t need to rely on assumptions about things such as rolling resistance.<\/p><p>Body Rocket\u2019s sensors can also measure how the rider interacts with their bike, giving insight as to whether a rider can sustain a given riding position effectively or is, for example, moving excessively on the saddle or pulling on the handlebar.<\/p><figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1707\" src=\"https:\/\/c02.purpledshub.com\/uploads\/sites\/39\/2024\/10\/08082024_EOS-R_IMG_9510-scaled.jpg\" alt=\"Body Rocket power meter pedals on Giant Propel Advanced SL\" class=\"wp-image-885135\"\/><figcaption class=\"wp-element-caption\">Body Rocket has developed its own power meter pedal system to complement the drag force measurement sensors. <span>Kai Eves \/ Our Media<\/span><\/figcaption><\/figure><p>Likewise, Body Rocket\u2019s system requires input from a <a href=\"https:\/\/www.bikeradar.com\/advice\/buyers-guides\/best-power-meters\">power meter<\/a> to calculate CdA \u2013 the brand says it built its own dual-sided pedal-based system because none of the existing options on the market were deemed accurate enough.<\/p><p>All of this data is then transmitted to a <a href=\"https:\/\/www.bikeradar.com\/advice\/buyers-guides\/garmin-edge-bike-computers-buyers-guide-to-all-the-models\">Garmin Edge bike computer<\/a>, via the ConnectIQ app, where you can view live CdA data as you ride and record it for post-ride analysis.<\/p><h2 class=\"wp-block-heading\">BRIAiN<\/h2><figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1707\" src=\"https:\/\/c02.purpledshub.com\/uploads\/sites\/39\/2024\/10\/Body-Rocket_BRIAiN-app-scaled.jpg\" alt=\"Body Rocket BRIAiN app on smartphone\" class=\"wp-image-885213\"\/><figcaption class=\"wp-element-caption\">Body Rocket has developed an AI-driven assistant to help riders use the on-bike sensors effectively. <span>Kai Eves \/ Our Media<\/span><\/figcaption><\/figure><p>Bike sensors aside, Body Rocket has another trick up its sleeve in the form of an app it says is driven by artificial intelligence (AI).<\/p><p>The Body Rocket Individualised Artificial Intelligence Network \u2013 or BRIAiN for short \u2013 is a browser-based application that utilises AI and machine learning to help riders with Body Rocket sensors to conduct and analyse the results of aero testing.<\/p><p>The brand\u2019s reasoning is it\u2019s not much use having the sensors if you don\u2019t know what to do with them, or how to interpret the data.<\/p><p>This is, it must be said, a great point.<\/p><p>Previous devices, such as the Notio Konect or Aerosensor, have typically offered riders little direction in terms of how to use them (beyond the basics of getting them set up and on your bike).<\/p><p>In the hands of aerodynamics experts, this might not be an issue, but for general riders it can make the learning curve steep.<\/p><p>In contrast, Body Rocket says BRIAiN can suggest a testing protocol and things to test, such as positional changes or a change of helmet or skinsuit.<\/p><p>Post-test runs, BRIAiN can then analyse the data captured, determine whether you rode with enough consistency to be confident in the results and suggest further testing and changes to keep refining things.<\/p><h2 class=\"wp-block-heading\">Testing the Body Rocket system<\/h2><figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1707\" src=\"https:\/\/c02.purpledshub.com\/uploads\/sites\/39\/2024\/10\/08082024_EOS-R_IMG_9542-edited-scaled.jpg\" alt=\"BMC Timemachine One time trial bike with prototype Body Rocket aero measurement system\" class=\"wp-image-885248\"\/><figcaption class=\"wp-element-caption\">To test the system, I rode the BMC triathlon bike, set up with prototype sensors. <span\/><\/figcaption><\/figure><p>That\u2019s a lot of information to take in, but arriving in Reading I had one key question \u2013 does it work?<\/p><p>Because the system is still in prototype form, I rode a BMC Timemachine One <a href=\"https:\/\/www.bikeradar.com\/advice\/buyers-guides\/time-trial-bikes\">time trial bike<\/a>, which had everything pre-installed on it by Body Rocket.<\/p><p>As we\u2019ll discuss later, the potential complexity of installing and setting up the various system parts on a bike may be a significant hurdle for the brand, but for now, let\u2019s focus on how it works once all set up (spoiler \u2013 it was impressive).<\/p><p>After some initial conversations with Eric Degolier, Body Rocket\u2019s founder, and Callum Barnes, Body Rocket\u2019s head of AI in aerodynamics, about our goals for the test, Barnes prompted BRIAiN to devise a testing schedule for the day.<\/p><h3 class=\"wp-block-heading\">Setting a baseline<\/h3><figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1707\" src=\"https:\/\/c02.purpledshub.com\/uploads\/sites\/39\/2024\/10\/Body-Rocket_Baseline_Run-01-scaled.jpg\" alt=\"Body Roket first ride \u2013 baseline run\" class=\"wp-image-885212\"\/><figcaption class=\"wp-element-caption\">The first test run was used to set a baseline against which to compare the effectiveness (or otherwise) of setup changes. <span>Kai Eves \/ Our Media<\/span><\/figcaption><\/figure><p>Almost instantly, BRIAiN suggested a series of things to test, as well as how to do it.<\/p><p>The initial suggestions revolved around making positional tweaks \u2013 things such as longer reach, more saddle-to-bar drop and so on.<\/p><p>This shouldn\u2019t come as a surprise, though, given most of the <a href=\"https:\/\/www.bikeradar.com\/features\/tech\/best-value-aero-upgrades\">biggest (and cheapest) aerodynamic gains<\/a> are typically realised through optimisations to a rider\u2019s body position.<\/p><p>After setting a baseline CdA with our \u2018stock\u2019 setup \u2013 which consisted of the BMC TT bike, team-issue BikeRadar jersey and shorts, and a <a href=\"https:\/\/www.bikeradar.com\/reviews\/helmets\/road-cycling-helmets\/kask-protone-icon-helmet-review\">Kask Protone Icon road helmet<\/a> \u2013 the first change we made was to extend the reach to the aerobars by 30mm.<\/p><p>The logic behind such a change is stretching a rider out can help elongate their upper-body shape and lower drag.<\/p><p><a href=\"https:\/\/www.bikeradar.com\/features\/graeme-obree-road-bike\">Graeme Obree<\/a> famously took this to the extreme with the \u2018Superman&#8217; position he developed in the mid-90s. Before this was banned by the UCI, Chris Boardman used it to set his famous 56.375km Hour Record distance in September 1996 \u2013 a mark which was only surpassed by <a href=\"https:\/\/www.bikeradar.com\/features\/pro-bike\/filippo-ganna-pinarello-hour-record-bike\">Filippo Ganna<\/a> in 2022.<\/p><h3 class=\"wp-block-heading\">Run 1<\/h3><figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1707\" src=\"https:\/\/c02.purpledshub.com\/uploads\/sites\/39\/2024\/10\/Body-Rocket_Run-02_Extended-Reach-scaled.jpg\" alt=\"Body Roket first ride \u2013 run 02, extended reach\" class=\"wp-image-885214\"\/><figcaption class=\"wp-element-caption\">For the first setup tweak, BRIAiN suggested extending my reach. <span>Kai Eves \/ Our Media<\/span><\/figcaption><\/figure><p>In practice, my CdA jumped significantly from 0.204 to 0.213. In a race scenario, BRIAiN calculated that would cost me 10.8 watts, or a whopping 49 seconds, over 40km.<\/p><p>At a glance, that might seem like a failure from the system, but it&#8217;s quite the opposite \u2013 having clear evidence a change has made you slower enables you to rule it out and return to the \u2018faster\u2019 baseline position with confidence.<\/p><p>Without a tool such as this, it could be easy to assume a more stretched-out position must be faster for everyone simply because it follows received wisdom.<\/p><h3 class=\"wp-block-heading\">Run 2<\/h3><figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1707\" src=\"https:\/\/c02.purpledshub.com\/uploads\/sites\/39\/2024\/10\/Body-Rocket_Run-03_TT-Helmet-scaled.jpg\" alt=\"Body Roket first ride \u2013 run 03, Kask Bambino Pro Evo time trial helmet\" class=\"wp-image-885215\"\/><figcaption class=\"wp-element-caption\">Swapping from a road to a time-trial helmet brought big gains. <span>Kai Eves \/ Our Media<\/span><\/figcaption><\/figure><p>Because we were also filming content for our <a href=\"https:\/\/youtu.be\/lRN6JDdw1Oc?si=TDR-HdwxHGTa8ext\">YouTube channel<\/a>, we opted to change the input protocols from this point to test more visually distinct changes, such as a <a href=\"https:\/\/www.bikeradar.com\/advice\/buyers-guides\/best-time-trial-helmets-real-world-testing-of-5-favourites\">time-trial helmet<\/a> and a high-end skinsuit.<\/p><p>BRIAiN was more than happy to oblige and amended the test protocol to suit our desired parameters.<\/p><p>This time, function followed form and the long-tailed Kask Bambino Pro Evo time-trial helmet was significantly faster than the Protone Icon \u2013 by 13.2 watts, or 60 seconds, over 40km.<\/p><p>Of course, the trade-off is the Bambino Pro Evo has only a few tiny strips for ventilation holes at the front of the helmet and, as such, is significantly stuffier than the Protone Icon on hot days.<\/p><figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1707\" src=\"https:\/\/c02.purpledshub.com\/uploads\/sites\/39\/2020\/05\/20200521_SB_5DSR_MG_1684-1a3cb5a-scaled.jpg\" alt=\"Kask Bambino Pro Evo time trial helmet\" class=\"wp-image-445787\"\/><figcaption class=\"wp-element-caption\">The Bambino Pro Evo time-trial helmet is a full-on TT helmet, focused solely on being as fast as possible. <span>Simon Bromley \/ Immediate Media<\/span><\/figcaption><\/figure><p>Nevertheless, that&#8217;s a huge difference in performance, especially because I wasn\u2019t testing at what many would class as \u2018race speeds\u2019 \u2013 I was riding at only around 35 to 40kph. At higher speeds, the difference would likely have been even larger.<\/p><p>This is because the power required to overcome aerodynamic drag is proportional to the cube of speed, meaning if you double your speed you\u2019ll need four times the power to overcome the extra drag.<\/p><p>As for why we tested at those slower speeds \u2013 it\u2019s mostly due to a desire for consistency and good data. Testing at race speeds can be a desirable thing to do in theory, but it\u2019s physically demanding.<\/p><p>If you\u2019re riding so hard you can\u2019t keep your body in the same position at all times, this will introduce a lot of noise into the data, making it much harder to discern any small differences between test runs.<\/p><p>Of course, the best athletes can do both \u2013 ride near or at race pace for extended periods and hold consistent power, position, and so on \u2013 but, unfortunately, the vast majority of us (myself included) are not said athletes.<\/p><h3 class=\"wp-block-heading\">Run 3<\/h3><figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1707\" src=\"https:\/\/c02.purpledshub.com\/uploads\/sites\/39\/2024\/10\/Body-Rocket_Run-04_NoPinz-skinsuit-scaled.jpg\" alt=\"Body Roket first ride \u2013 run 04, NoPinz Flow skinsuit\" class=\"wp-image-885216\"\/><figcaption class=\"wp-element-caption\">Next up, we tested a NoPinz skinsuit. <span>Kai Eves \/ Our Media<\/span><\/figcaption><\/figure><p>With the TT helmet data under my belt, I squeezed myself into a <a href=\"https:\/\/www.bikeradar.com\/features\/first-look-friday\/nopinz-time-trial-kit\">NoPinz Flow time-trial skinsuit<\/a> for the final test run.<\/p><p>Developed in collaboration with UK-based aerodynamics experts, AeroCoach, the Flow suit was used by some of the world\u2019s best <a href=\"https:\/\/www.bikeradar.com\/advice\/fitness-and-training\/10-steps-to-your-best-ever-time-trial\">time-trial<\/a> riders until it was recently superseded by a newer design.<\/p><p>As with the TT helmet, the suit was faster than my baseline jersey and bibs by 3.6 watts, or 17 seconds, over 40km.<\/p><p>At face value, this might not seem like much, but it&#8217;s worth remembering my BikeRadar kit isn&#8217;t some baggy mess \u2013 it\u2019s premium stuff made by Sportful, with a tight, form-hugging fit.<\/p><p>Again, as with the helmet, the gap would likely have increased at higher speeds too, because the Flow suit is designed to perform best at speeds between 40 and 65kph.<\/p><p>As we saw when we tested <a href=\"https:\/\/www.bikeradar.com\/features\/tech\/best-value-aero-upgrades\">budget aero upgrades<\/a> at the Silverstone wind tunnel, though, a skinsuit might not be a great-value investment if you don&#8217;t ride at the speeds they&#8217;re designed to perform best at.<\/p><h3 class=\"wp-block-heading\">Run 4<\/h3><figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1707\" src=\"https:\/\/c02.purpledshub.com\/uploads\/sites\/39\/2024\/10\/Body-Rocket_Run-05_Race-sim-scaled.jpg\" alt=\"Body Roket first ride \u2013 run 05, race simulation\" class=\"wp-image-885217\"\/><figcaption class=\"wp-element-caption\">For the final run, I did a race-simulation effort. <span>Kai Eves \/ Our Media<\/span><\/figcaption><\/figure><p>For the final run, BRIAiN had me perform a 3km race simulation \u2013 an all-out effort designed to check the consistency of the changes at a higher speed and effort level.<\/p><p>Having not trained much this year, my stats won\u2019t wow anyone, so I\u2019ll spare you the times and specific details.<\/p><p>More relevantly, though, the run showed another small decrease to my drag, saving me an additional 3.6 watts, or 17 seconds, over 40km.<\/p><p>Whether this was the skinsuit and helmet working more effectively at higher speeds, or because of something I instinctively do when riding hard (such as dropping my head lower, for example), would require further testing to discern, though.<\/p><h3 class=\"wp-block-heading\">Results and analysis<\/h3><figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1916\" height=\"938\" src=\"https:\/\/c02.purpledshub.com\/uploads\/sites\/39\/2024\/10\/BRIAin-dashboard-review.jpg\" alt=\"Body Rocket BRIAiN dashboard review\" class=\"wp-image-885205\"\/><figcaption class=\"wp-element-caption\">With the test runs complete, BRIAiN automatically crunched the data, gave me results and made suggestions for future tests. <span>Body Rocket<\/span><\/figcaption><\/figure><p>With all that testing done, BRIAiN crunched the numbers and gave a quick analysis.<\/p><p>It suggested there was increased variability in run 4 (the race-pace run) and suggested re-running that one to see if greater consistency could be achieved.<\/p><p>As noted earlier, this could be because I wasn\u2019t able to hold a consistent position when riding on the limit.<\/p><p>Unsurprisingly, it also recommended returning to the faster, baseline body position. It also suggested retesting the time-trial helmet and skinsuit in the baseline position to ensure the gains weren\u2019t tied to the extended reach position.<\/p><figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1611\" height=\"1073\" src=\"https:\/\/c02.purpledshub.com\/uploads\/sites\/39\/2024\/10\/Body-Rocket_First-Ride_Watts-Saved_CROP-edited.jpg\" alt=\"Body Rocket first ride \u2013 watts saved\" class=\"wp-image-885221\"\/><figcaption class=\"wp-element-caption\">Collecting useful aero data was relatively simple, with Body Rocket&#8217;s BRIAiN tool doing much of the hard work behind the scenes.\u00a0 <span\/><\/figcaption><\/figure><p>From there, it suggested two additional aero helmets to compare to the Kask \u2013 the original <a href=\"https:\/\/www.bikeradar.com\/news\/giro-aerohead-mips-helmets-launched\">Giro Aerohead<\/a> and the HJC Adwatt (two helmets Body Rocket says typically perform well on a wide variety of athletes).<\/p><p>Of course, in theory, you could continue to test various positional and\/or equipment changes to your heart\u2019s content \u2013 and therein lies the benefit of the system. Once the it&#8217;s installed on your bike, the only major limiting factors are access to test equipment (e.g. other helmets or skinsuits) and a suitable location to perform test runs.<\/p><h2 class=\"wp-block-heading\">Will Body Rocket or its competitors ever go mainstream?<\/h2><figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1707\" src=\"https:\/\/c02.purpledshub.com\/uploads\/sites\/39\/2024\/10\/08082024_EOS-R_IMG_9489-edited-scaled.jpg\" alt=\"Giant Propel Advanced SL with Body Rocket aero sensor system\" class=\"wp-image-885252\"\/><figcaption class=\"wp-element-caption\">Given the multitude of sensors in the Body Rocket system, it isn&#8217;t cheap. <span\/><\/figcaption><\/figure><p>So far so good, then, but what about the downsides?<\/p><p>First of all, there\u2019s the price, which \u2013 at \u00a32,950 \u2013 is significantly higher than competitors such as the Notio Konect ($599) or Aerosensor (\u00a3779).<\/p><p>Of course, it\u2019s worth remembering this includes a set of Body Rocket\u2019s own dual-sided power meter pedals \u2013 which it claims will be the most accurate available \u2013 and that both the Notio and Aerosensor require input from a power meter to calculate drag.<\/p><p>If you don\u2019t already have one, you\u2019d therefore need to factor one into the cost of those devices.<\/p><figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1707\" src=\"https:\/\/c02.purpledshub.com\/uploads\/sites\/39\/2024\/10\/08082024_EOS-R_IMG_9512-scaled.jpg\" alt=\"Giant Propel Advanced SL with Body Rocket aero sensor system\" class=\"wp-image-885136\"\/><figcaption class=\"wp-element-caption\">Most aero measurement systems require you to provide your own power meter. <span>Kai Eves \/ Our Media<\/span><\/figcaption><\/figure><p>Likewise, it could be argued to represent relatively good value compared to buying a new bike, or even a set of high-end wheels, if you measure value in terms of potential performance gains.<\/p><p>Even so, it\u2019s fair to say the Body Rocket system is very expensive and this will doubtless be a stumbling block for many riders.<\/p><p>On the other hand, if you\u2019re the kind of rider \u2013 or team \u2013 that spends large amounts of money on time in wind tunnels, or with experts at velodromes, it might be easy to rationalise this cost.<\/p><p>As with power meters, Body Rocket says it hopes the price and accessibility of this technology will come down over time, in order to make it more accessible to a wider range of riders.<\/p><h3 class=\"wp-block-heading\">Compatibility<\/h3><figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"2308\" height=\"1538\" src=\"https:\/\/c02.purpledshub.com\/uploads\/sites\/39\/2024\/10\/08082024_EOS-R_IMG_9545-edited.jpg\" alt=\"BMC Timemachine One time trial bike with prototype Body Rocket aero measurement system\" class=\"wp-image-885249\"\/><figcaption class=\"wp-element-caption\">Compatibility with triathlon bikes shouldn&#8217;t be too difficult. <span\/><\/figcaption><\/figure><p>Cost aside, though, because Body Rocket\u2019s system measures the force of the air on the rider, the data captured measures the rider\u2019s drag in isolation from their bike.<\/p><p>It therefore can\u2019t directly measure changes made to your bike. Like other sensors, though, it can infer these based on assumptions of things such as drivetrain and rolling resistance.<\/p><p>Likewise, because the system is made up of four rather than two sensors, making it universally compatible with today\u2019s bikes (which increasingly use integrated and\/or proprietary parts) is tricky, if not impossible.<\/p><p>For its part, Body Rocket says it aims to make its system compatible with \u201cup to 80 per cent of [triathlon] bikes ridden at the Ironman world championships\u201d.<\/p><figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1707\" src=\"https:\/\/c02.purpledshub.com\/uploads\/sites\/39\/2024\/10\/Body-Rocket_Tri-bars-riser-sensor-scaled.jpg\" alt=\"Body Rocket handlebar sensor on Specialized S-Works Shiv triathlon bike\" class=\"wp-image-885219\"\/><figcaption class=\"wp-element-caption\">Given many riders now favour a high stack position, there&#8217;s usually plenty of room for sensors between the base bar and elbow pads. <span>Kai Eves<\/span><\/figcaption><\/figure><p>Modern time trial and triathlon bikes are easier to target because, with many bikes coming with armrest risers (which enable riders to adjust stack height), there&#8217;s typically a natural space for the handlebar sensor to be sandwiched between the armrests and the base bar.<\/p><p>The deep-section seatposts many TT and tri bikes have also offer sufficient real estate for the saddle sensor.<\/p><p>Road bikes are another matter altogether, though.<\/p><figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"2177\" height=\"1452\" src=\"https:\/\/c02.purpledshub.com\/uploads\/sites\/39\/2024\/10\/08082024_EOS-R_IMG_9484-edited.jpg\" alt=\"Giant Propel Advanced SL with Body Rocket aero sensor system\" class=\"wp-image-885223\"\/><figcaption class=\"wp-element-caption\">Outfitting road bikes will be trickier, though, because there&#8217;s little consistency of components between brands. <span\/><\/figcaption><\/figure><p>Body Rocket has a slick-looking prototype built around a <a href=\"https:\/\/www.bikeradar.com\/reviews\/bikes\/road-bikes\/2023-giant-propel-advanced-sl-0-review\">Giant Propel Advanced SL 0<\/a> belonging to one of its top sponsored athletes, Kristian Blummenfelt.<\/p><p>On this bike, the handlebar sensors are housed within a custom stem, while the saddle sensor perches atop that bike\u2019s aero seatpost.<\/p><p>However, with little consistency between road bike brands, making parts to fit even a small selection of the most popular road bikes available today is no small task.<\/p><p>For example, while the Giant Propel uses a simple D-shaped steerer tube that can accept relatively regular stems, <a href=\"https:\/\/www.bikeradar.com\/reviews\/bikes\/road-bikes\/2024-canyon-aeroad-cfr-di2-first-ride-review\">Canyon\u2019s Aeroad<\/a> and <a href=\"https:\/\/www.bikeradar.com\/reviews\/bikes\/road-bikes\/canyon-ultimate-cf-sl-8-aero-review\">Ultimate<\/a> road bikes both use proprietary quill stem-style stem handlebars.<\/p><figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"2061\" height=\"1374\" src=\"https:\/\/c02.purpledshub.com\/uploads\/sites\/39\/2024\/10\/08082024_EOS-R_IMG_9502-edited.jpg\" alt=\"Body Rocket custom stem for Giant Propel Advanced SL\" class=\"wp-image-885232\"\/><figcaption class=\"wp-element-caption\">Body Rocket&#8217;s initial solution is a custom stem, but questions remain over whether this is a practical option at scale. <span>Russell Burton \/ Our Media<\/span><\/figcaption><\/figure><p>Likewise, whereas the reach of triathlon bikes can typically be adjusted independently of stem length (by adjusting the location of the armrests and extensions), with road bikes this is typically done by changing the stem length.<\/p><p>Perhaps additive manufacturing (often referred to as <a href=\"https:\/\/www.bikeradar.com\/features\/tech\/3d-printing-future-of-bike-industry\">3D printing<\/a>) will help Body Rocket solve the conundrum of needing to make custom stems or handlebars to fit every bike and every rider.<\/p><p>Considering the <a href=\"https:\/\/www.bikeradar.com\/news\/mythos-elix-3d-printed-stem\">Mythos Elix 3D-printed stem<\/a> costs \u00a3500 alone, though, it seems unlikely this would be a cost-effective solution unless cheaper materials can be used instead of titanium.<\/p><h3 class=\"wp-block-heading\">Demand<\/h3><figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1707\" src=\"https:\/\/c02.purpledshub.com\/uploads\/sites\/39\/2024\/10\/08082024_EOS-R_IMG_9532-scaled.jpg\" alt=\"Body Rocket aero data on Garmin bike computer\" class=\"wp-image-885143\"\/><figcaption class=\"wp-element-caption\">Do enough riders want live aero data on their head units? <span>Simon von Bromley \/ Our Media<\/span><\/figcaption><\/figure><p>Perhaps the largest hurdle, though, could be convincing riders they want one.<\/p><p>Many riders now buy into aerodynamics as a concept, and are willing to shell out for bolt-on upgrades such as aerodynamic carbon wheels, <a href=\"https:\/\/www.bikeradar.com\/advice\/buyers-guides\/best-aero-helmets\">aero helmets<\/a>, <a href=\"https:\/\/www.bikeradar.com\/advice\/sizing-and-fit\/narrow-handlebars\">narrow handlebars<\/a> and so on.<\/p><p>Relatively few people will have ever been inside a wind tunnel, or had an aero testing session at a track, though, and many simply want to ride their bikes in their free time rather than performing dedicated \u2018testing\u2019.<\/p><p>Just like when power meters first launched, then, persuading riders to part with cold, hard cash for a device that spits out data they\u2019re unfamiliar with might be tricky.<\/p><p><script src=\"https:\/\/cdn.jwplayer.com\/players\/fVNS6zdZ-KvTfK8W9.js\"\/><\/p><hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/><h2 class=\"wp-block-heading\">Bikes of the future<\/h2><figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1707\" src=\"https:\/\/c02.purpledshub.com\/uploads\/sites\/39\/2024\/10\/08082024_EOS-R_IMG_9496-scaled.jpg\" alt=\"Body Rocket aero sensor on Giant Propel Advanced SL\" class=\"wp-image-885130\"\/><figcaption class=\"wp-element-caption\">Might we see systems of this kind fully integrated into future bikes? <span>Kai Eves \/ Our Media<\/span><\/figcaption><\/figure><p>When <a href=\"https:\/\/www.bikeradar.com\/features\/opinion\/the-perfect-power-meter-doesnt-exist\">power meters first appeared on the scene back in 1987<\/a>, it was something you needed to bolt on to your bike after the fact, with wires galore.<\/p><p>Fast forward to 2024, though, and many bikes now come with wireless power meters fully integrated into their builds.<\/p><p>Despite these potential hurdles, then, could we see a future where the Body Rocket system or other aero sensors are integrated into bikes at the point of fabrication?<\/p><p>I believe so. Of course, that would require deals with bike and\/or component manufacturers to make this feasible, but if demand for such devices can be proven then it\u2019s not difficult to imagine.<\/p> <\/body><\/html>\n<hr class=\"no-tts wp-block-separator\"\/>","protected":false},"excerpt":{"rendered":"<p>Is on-bike aero measurement ready for lift-off? <\/p>\n","protected":false},"author":24,"featured_media":70170,"template":"","categories":[1,36],"acf":{"readingTimeMinutes":"16"},"uagb_featured_image_src":{"full":["https:\/\/c01.purpledshub.com\/uploads\/sites\/43\/2024\/10\/are-wind-tunnel-sensors-on-your-bike-the-future-of-aero-tech-body-rocket-first-ride.jpg",2400,1600,false],"thumbnail":["https:\/\/c01.purpledshub.com\/uploads\/sites\/43\/2024\/10\/are-wind-tunnel-sensors-on-your-bike-the-future-of-aero-tech-body-rocket-first-ride-150x150.jpg",150,150,true],"medium":["https:\/\/c01.purpledshub.com\/uploads\/sites\/43\/2024\/10\/are-wind-tunnel-sensors-on-your-bike-the-future-of-aero-tech-body-rocket-first-ride-300x200.jpg",300,200,true],"medium_large":["https:\/\/c01.purpledshub.com\/uploads\/sites\/43\/2024\/10\/are-wind-tunnel-sensors-on-your-bike-the-future-of-aero-tech-body-rocket-first-ride-768x512.jpg",768,512,true],"large":["https:\/\/c01.purpledshub.com\/uploads\/sites\/43\/2024\/10\/are-wind-tunnel-sensors-on-your-bike-the-future-of-aero-tech-body-rocket-first-ride-1024x683.jpg",800,534,true],"1536x1536":["https:\/\/c01.purpledshub.com\/uploads\/sites\/43\/2024\/10\/are-wind-tunnel-sensors-on-your-bike-the-future-of-aero-tech-body-rocket-first-ride-1536x1024.jpg",1536,1024,true],"2048x2048":["https:\/\/c01.purpledshub.com\/uploads\/sites\/43\/2024\/10\/are-wind-tunnel-sensors-on-your-bike-the-future-of-aero-tech-body-rocket-first-ride-2048x1365.jpg",2048,1365,true]},"uagb_author_info":{"display_name":"importmanagerhub@sprylab.com","author_link":"https:\/\/c01.purpledshub.com\/cyclingplus\/author\/importmanagerhubsprylab-com\/"},"uagb_comment_info":0,"uagb_excerpt":"Is on-bike aero measurement ready for lift-off?","_links":{"self":[{"href":"https:\/\/c01.purpledshub.com\/cyclingplus\/wp-json\/wp\/v2\/rss_feed\/70169"}],"collection":[{"href":"https:\/\/c01.purpledshub.com\/cyclingplus\/wp-json\/wp\/v2\/rss_feed"}],"about":[{"href":"https:\/\/c01.purpledshub.com\/cyclingplus\/wp-json\/wp\/v2\/types\/rss_feed"}],"author":[{"embeddable":true,"href":"https:\/\/c01.purpledshub.com\/cyclingplus\/wp-json\/wp\/v2\/users\/24"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/c01.purpledshub.com\/cyclingplus\/wp-json\/wp\/v2\/media\/70170"}],"wp:attachment":[{"href":"https:\/\/c01.purpledshub.com\/cyclingplus\/wp-json\/wp\/v2\/media?parent=70169"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/c01.purpledshub.com\/cyclingplus\/wp-json\/wp\/v2\/categories?post=70169"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}