{"id":50822,"date":"2023-06-20T11:00:57","date_gmt":"2023-06-20T09:00:57","guid":{"rendered":"https:\/\/www.bikeradar.com\/?p=734709"},"modified":"2023-06-20T11:35:38","modified_gmt":"2023-06-20T09:35:38","slug":"rotors-new-2inpower-sl-is-the-lightest-dual-sided-power-meter-available-and-its-cheaper-too","status":"publish","type":"rss_feed","link":"https:\/\/c01.purpledshub.com\/cyclingplus\/rss_feed\/rotors-new-2inpower-sl-is-the-lightest-dual-sided-power-meter-available-and-its-cheaper-too\/","title":{"rendered":"Rotor\u2019s new 2INpower SL is \u201cthe lightest dual-sided power meter\u201d available (and it\u2019s cheaper too)"},"content":{"rendered":"

The weight weenie spirit is alive and well <\/p>

By Simon von Bromley\n \t\t<\/p>

Published: Tuesday, 20 June 2023 at 12:00 am<\/p>

\n\n

Rotor has announced the 2INpower SL, a \u201csuperlight\u201d version of its existing dual-sided crank-based power meter.<\/p>\n

The Rotor 2INpower SL is built around a CNC-machined aluminium crankset, and weighs a claimed 530g in a 170mm length.<\/p>\n

The 2INpower SL crankset can be paired with 1x or 2x direct-mount chainrings, or a 110mm x 4 BCD (Bolt Circle Diameter<\/a>) chainring spider for use with standard chainrings.<\/p>\n

The 2INpower SL power meter<\/a> has a claimed accuracy rating of +\/- 1.5 per cent, and is priced at \u00a3860\/\u20ac999\/$1,099 \u2013 \u00a3110\/\u20ac50\/$56 cheaper than the previous version.<\/p>\n

Rotor says it offers a \u201cbest in class\u201d option for dedicated cyclists, or for those who wish to improve their pedalling symmetry and efficiency.<\/p>\n

The lightest dual-sided power meter<\/h2>\n
\""Rotor\"<\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div>
Rotor says the 2INpower SL is \u201cthe lightest dual-sided power meter\u201d available.<\/span><\/figcaption> Rotor<\/i><\/span><\/div>\n

Rotor has produced a number of INpower cranksets in recent years, including single-sided options<\/a> and an MTB-specific dual-sided version, the Rotor 2INpower MTB<\/a>.<\/p>\n

At a claimed 530g for a 170mm crankset, the new 2INpower SL appears to save 66g versus the existing 2INpower DM Road<\/a> (claimed weight 596g), the standard dual-sided version for road and gravel bikes<\/a>.<\/p>\n

Rotor says this represents a 15 per cent weight saving (although by our calculations it\u2019s more like 11 per cent).<\/p>\n

\""Rotor\"<\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div>
The 2INpower SL can be used with 1x or 2x drivetrains on both road and gravel bikes.<\/span><\/figcaption> Rotor<\/i><\/span><\/div>\n

This weight accounts for each crank arm and the integrated 30mm aluminium axle.<\/p>\n

With Rotor\u2019s own 50\/34t chainrings, the total system weight rises to a claimed 729g.<\/p>\n

In comparison, a Shimano Dura-Ace Di2 R9200<\/a> power meter crankset (172.5mm cranks, with 52\/36t chainrings) weighs 750g.<\/p>\n

Independent left\/right measurement<\/h2>\n
\""Rotor\"<\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div>
Each crank arm contains a separate power meter.<\/span><\/figcaption> Rotor<\/i><\/span><\/div>\n

As with other dual-sided power meter cranksets and pedal systems, such as the Stages LR<\/a>, Verve InfoCrank Classic<\/a> or Favero Assioma Duo<\/a>, the Rotor 2INpower SL offers true (as opposed to estimated) left\/right power measurement.<\/p>\n

This is because each crank arm or pedal can measure the power produced by each leg independently.<\/p>\n

\""Rotor\"<\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div>
Rotor says the 2INpower SL is ideal for riders looking to improve their pedalling efficiency.<\/span><\/figcaption> Rotor<\/i><\/span><\/div>\n

In contrast, spider-based power meters, such as the Quarq DFour DUB<\/a>, Power2Max NG Road<\/a> or Rotor\u2019s own INspider<\/a>, measure power between the chainrings and the cranks.<\/p>\n

This means that while they measure total power (i.e. that produced by both legs), they can only provide an estimated left\/right-leg split.<\/p>\n

Though the usefulness of such data to the average rider is still contested by some, if you do want an accurate left\/right split then a dual-sided power meter is the way to go.<\/p>\n

\""Rotor\"<\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div>
The Rotor Power app can be used in conjunction with the 2INpower SL to optimise the rotation of Rotor\u2019s Q-rings.<\/span><\/figcaption> Rotor<\/i><\/span><\/div>\n

Rotor says its Rotor Power app (available for iOS and Android smart devices) can be used for in-depth pedalling analysis and to optimise the rotation of its Q-rings.<\/p>\n

Q-rings are the Spanish brand\u2019s ovalised chainrings, which are claimed to improve pedalling efficiency.<\/p>\n

Rotor 2INpower SL pricing, details and specification<\/h2>\n
\""Rotor\"<\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div>
The Rotor 2INpower SL is available in four popular crank lengths.<\/span><\/figcaption> Rotor<\/i><\/span><\/div>\n

The Rotor 2INpower SL power meter crankset costs \u00a3860\/\u20ac999\/$1,099 and is available in four crank lengths: 165mm, 170mm, 172.5mm and 175mm.<\/p>\n

Despite the prices of many bikes and components rocketing in recent years<\/a>, that\u2019s cheaper than the standard version, which costs \u00a3970\/\u20ac1,049\/$1,155.<\/p>\n

Perhaps our prediction that prices will fall in 2023<\/a> might be coming true after all?<\/p>\n

\""Rotor\"<\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div>
The 2INpower SL uses a 30mm axle, and Rotor makes adaptor bottom brackets to fit most bike frames.<\/span><\/figcaption> Rotor<\/i><\/span><\/div>\n

The crank arms are made from black anodised, CNC-machined aluminium. It uses a 30mm axle that can be adapted to most bikes using Rotor\u2019s range of bottom brackets<\/a>.<\/p>\n

Rotor says the 2INpower SL uses active temperature compensation, enabling it to remain accurate in temperatures ranging from -20\u00b0C to 50\u00b0C.<\/p>\n

\""Rotor\"<\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div>
The Rotor 2INpower SL uses active temperature compensation to ensure accurate power measurement in all conditions.<\/span><\/figcaption> Rotor<\/i><\/span><\/div>\n

As with previous versions, cadence is measured using accelerometers, meaning no frame magnets are required.<\/p>\n

The Rotor 2INpower SL can also broadcast advanced power meter metrics such as torque effectiveness and pedal smoothness, via ANT+ and Bluetooth, to compatible bike computers<\/a>.<\/p>\n

It uses a rechargeable Li-ion battery and has a claimed battery life of 250 hours. Rotor also claims the 2INpower SL can be fully recharged in just three hours.<\/p>\n

Rotor 2INpower SL specification<\/h3>\n
  • Price:<\/strong> \u00a3860\/\u20ac999\/$1,099<\/li>\n
  • Power meter type:<\/strong> Dual-sided crankset<\/li>\n
  • Available crank lengths:<\/strong> 165mm, 170mm, 172.5mm and 175mm<\/li>\n
  • Claimed weight:<\/strong> 530g (170mm cranks)<\/li>\n
  • Claimed accuracy:<\/strong> +\/-1.5 per cent<\/li>\n
  • Battery type:<\/strong> Rechargeable Li-ion<\/li>\n
  • Claimed battery life:<\/strong> 250 hours<\/li>\n
  • Waterproof rating:<\/strong> IP67<\/li>\n
  • Connectivity:<\/strong> ANT+ and Bluetooth<\/li>\n<\/ul> <\/body><\/html>\n
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