{"id":159,"date":"2021-11-04T17:45:41","date_gmt":"2021-11-04T16:45:41","guid":{"rendered":"https:\/\/www.bikeradar.com\/?p=651579"},"modified":"2021-11-04T17:58:14","modified_gmt":"2021-11-04T16:58:14","slug":"reserve-has-reinvented-the-tubeless-valve-and-we-think-we-want-a-lifetime-supply","status":"publish","type":"rss_feed","link":"https:\/\/c01.purpledshub.com\/cyclingplus\/rss_feed\/reserve-has-reinvented-the-tubeless-valve-and-we-think-we-want-a-lifetime-supply\/","title":{"rendered":"Reserve has reinvented the tubeless valve, and we think we want a lifetime supply"},"content":{"rendered":"

<\/p>

By Tom Marvin\n \t\t<\/p>

Published: Thursday, 04 November 2021 at 12:00 am<\/p>

\n\n

Reserve, the component brand of Santa Cruz bikes, has released a new tubeless valve, the Fillmore, that aims to solve some of the issues users of tubeless tyre systems face.<\/p>\n

The Fillmore Tubeless Valve is unique in that it doesn\u2019t feature an inner core, rather the opening of the valve, which lets air into the tyre, is placed at the base of the valve stem on the outside edge of the rim but inside of the tyre.<\/p>\n

\""Reserve\"<\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div>
The plug at the bottom of the stem pushes down into the tyre\u2019s void to allow air in, and hopefully keep sealant out.<\/span><\/figcaption> Reserve<\/i><\/span><\/div>\n

This allows Reserve to have a larger port, increasing the potential air flow, which is said to make tubeless inflation easier. Furthermore, it\u2019s said to effectively close off the valve stem from sealant ingress, which is one of the main causes of tubeless inflation woes, as gummed-up sealant compromises a regular Presta valve\u2019s airflow.<\/p>\n

Reserve claims the Flowmore\u2019s cap can be unscrewed a little and depressed to easier adjust tyre pressures. At the same time, there\u2019s less risk of damage to the valve as it has an overall sturdier build. Finally, injecting sealant into the tyre is easier as the valve stem is less congested thanks to having no valve core, says Reserve.<\/p>\n

Why are we excited about these valves?<\/h2>\n

We have a love-hate relationship with tubeless tyres<\/a> here at BikeRadar.<\/p>\n

Of course, we love the reduction in punctures, and their ability (often, though not always) to re-seal themselves. We also revel in lower rolling resistance, lower pressures, more grip and not lugging 400g of extra rubber tube inside our 1,000g rubber tyre.<\/p>\n

\""Mountain\"<\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div>
A far less common occurrence, thanks to tubeless!<\/span><\/figcaption> Russell Burton \/ Immediate Media<\/i><\/span><\/div>\n

However, tubeless isn\u2019t without its frustrations.<\/p>\n

First off, getting a tyre to pop into the rim bead is often reliant on a quick push of air through the valve. After a couple of goes with a pump and valve, we frequently resort to plan B and plan C \u2013 a reservoir of high pressure air and removal of the valve core.<\/p>\n

There\u2019s nothing wrong with this, but given the 50\/50 nature of \u2018normal procedure\u2019\/plan B and plan C, it adds faff to the proceedings, especially if you\u2019ve lost your tiny core removal tool and rely on a pair of pliers to get the core out.<\/p>\n

Then there\u2019s the ongoing maintenance. By design, the best tubeless sealant<\/a> is designed to clog small holes \u2013 conveniently (or not, as it happens), holes similar in size to the internal passageway air has to move through in a traditional Presta valve port.<\/p>\n

\""Sealant\"<\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div>
Sealant, ready to clog up any Presta valve it spies.<\/span><\/figcaption> BikeRadar<\/i><\/span><\/div>\n

Hence, tubeless valves, regardless of their quality, are prone to clogging.<\/p>\n

This leads to painfully slow intentional deflation and re-inflation. Yes, they can be cleaned out or replaced, but who wants that hassle in their life?<\/p>\n

The valve core that pops out of the top of the stem is also prone to damage, especially when you lose the little cap in a car park.<\/p>\n

\""Reserve\"<\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div>
If only our tubeless set-ups were so clean!<\/span><\/figcaption> Reserve<\/i><\/span><\/div>\n

What makes Reserve\u2019s Fillmore tubeless valves special?<\/h2>\n

So, why are we excited about the new Fillmore valve from Reserve?<\/p>\n

Well,\u00a0if (and it\u2019s a big if)\u00a0Reserve\u2019s claims are to be believed, the new valve goes some way to solving a lot of those problems.<\/p>\n

Rather than the valve stem holding a valve core within it, the Fillmore\u2019s valve runs all the way through to the bottom of the stem. Pushing down on the top of the valve opens a port at the base of the stem, inside the mountain bike tyre\u2019s<\/a> air chamber (we\u2019re sure they\u2019ll work with gravel bike tyres<\/a> too!).<\/p>\n

\""Reserve\"<\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div>
The silver plunger goes all the way to the base of the valve.<\/span><\/figcaption> Reserve<\/i><\/span><\/div>\n

This means two things. One \u2013 sealant is largely (though we assume not entirely) kept away from the inside of the stem, where it otherwise might clog a smaller port, as when the valve closes, it prevents sealant travelling up the stem. Thus, clogging should be less of a concern.<\/p>\n

Two \u2013 airflow is less restricted. Air passes through a much broader, more open valve at the base of the stem, rather than having to force its way through a potentially clogged, much smaller port within the stem. As such, airflow is improved, meaning popping tubeless tyres onto a rim should be less fraught with hassle. Obviously, some tyre and rim combos will need some extra grunt, and you may need to make sure your rim taping (that\u2019s another column!) is up to scratch, but we hope it\u2019ll help.<\/p>\n

\""Reserve\"<\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div>
With a more open valve hole, Reserve is suggesting airflow will be improved.<\/span><\/figcaption> Reserve<\/i><\/span><\/div>\n

What else is there to know?<\/h2>\n

As the valve system is much more open, you shouldn\u2019t need to remove the core to add sealant, according to Reserve. Just pop your applicator hose over the top and inject sealant.<\/p>\n

\""Reserve\"<\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div>
Sealant syringes should pop right over the top of the valve for easy injection of sealant.<\/span><\/figcaption> Reserve<\/i><\/span><\/div>\n

Furthermore, the top of the valve is protected by a broad cap. And this cap itself can be used to adjust air pressure on the trail \u2013 dubbed Flow Control: loosen a touch, push down and air escapes, without spraying you with sealant.<\/p>\n

The valves are available now, and cost \u00a339.99. Yes, that\u2019s forty quid for a tubeless valve. Like Reserve\u2019s mountain bike wheels<\/a>, they come with a lifetime warranty, if that makes it a little easier to stomach.<\/p>\n

\""Reserve\"<\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div>
Pressure adjustment, made easy. We hope.<\/span><\/figcaption> Reserve<\/i><\/span><\/div>\n

Are the valves truly unique?<\/h2>\n

Off the top of the BikeRadar tech-heads\u2019 heads, we think so \u2013 certainly in the cycling space. If there are other variations, let us know in the comments.<\/p>\n

There are other \u2018posh\u2019 valve systems out there, though. Muc-Off\u2019s V2 Tubeless Valves<\/a> (\u00a325), among others, have cut-outs at the base of the valve stem to aid airflow around tyre inserts and come with a range of grommets to fit different rim profiles.<\/p>\n

\""Pink\"<\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div>
Muc-Off has updated its tubeless valves.<\/span><\/figcaption> Matthew Loveridge \/ Immediate Media<\/i><\/span><\/div>\n

Milkit\u2019s system<\/a> (\u00a345) has some of the advantages of the Reserve system. A one-way valve in the base of the stem allows a sealant applicator tube to be poked straight into the tyre\u2019s air chamber to add or remove sealant, and helps reduce sealant from getting into the valve stem.<\/p>\n

\""Reserve\"<\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div>
Pushing the cap down will release air, allowing you to easily adjust tyre pressure.<\/span><\/figcaption> Reserve<\/i><\/span><\/div>\n

So what do we think?<\/h2>\n

Well, if Reserve\u2019s promises are to be believed, it seems that the Fillmore could be the valve of choice for those who struggle with the chores of tubeless setup. We have a set here, and will be fitting them to one of our longterm test bikes<\/a> for a while to see how well they resist clogging. Perhaps now really is the time to stop using Presta valves<\/a>\u2026<\/p><\/body><\/html>\n

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