Well, if (and it’s a big if) Reserve’s claims are to be believed, the new valve goes some way to solving a lot of those problems. If only our tubeless set-ups were so clean! Reserve What makes Reserve’s Fillmore tubeless valves special?

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The latest high quality mountain bike inner tubes are advanced to provide consistent pressure and protect you from punctures, so whether you need a hard wearing MTB inner tube, slim inner tube option for road racing, a kids bike inner tube or a specific 27.5 inner tube, you can buy from Chain Reaction with confidence. Yes. While we recommend keeping the cap on for best practice and for the micro-adjust feature, there are no issues with riding the bike with a missing cap. The system is designed to hold tire pressure with or without an air cap. Pushing the cap down will release air, allowing you to easily adjust tyre pressure. Reserve So what do we think? Now push the valve stem into the hole in the rim and push it right the way though. Then place the rubber 0-ring onto the valve stem and slide it all the way down until it meets the rim.

STEP 6 – Tip, don’t overtighten as this can cause leaking. Finish by screwing on your preferred valve cap. Despite lots of development when it comes to the best tubeless tires in mountain bike, gravel and road, the best tubeless wheels and best tubeless tire valves have hardly changed for ages. You could get different colors for matching other anodized components and you could get different lengths for different depths of rim but that was about it. We know how frustrating it is to have a leaky tubeless valve that just doesn’t seal! So we set about designing and making our own premium tubeless valves to solve the hassle of finding your tyre flat every time you go to ride. The Muc-Off V2 Tubeless Valves are a class act. Brilliant in construction and application, and easy to fit. They make tyre inflation an easy exercise and are just as impressive when it comes to holding air pressure." Chain reaction Cycles and CRC are trading names of Wiggle Ltd (In Administration) registered in the United Kingdom at 1000 Lakeside, Suite 310, Third Floor N E Wing, Portsmouth, Hampshire, PO6 3EN,

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Current rides: Cervelo ZFS-5, Forbidden Druid V2, Specialized Chisel, custom Nicolai enduro tandem, Landescape/Swallow custom gravel tandem Another minor downside is that Fillmore valves don't play all that well with some tire inserts. In particular, inserts that lay flat against the rim tape. This forces the Fillmore valve to push the insert to open, significantly reducing the airflow advantage. So if you're a big fan of tire inserts, these might not be for you. They’re slide slotted to work with inserts but still have a straight through hole for fast filling if you’ve not put an insert in the way. Another nice touch is that one of the valve caps works as a mini wrench for undoing the valve core (for faster inflation/sealant filling) and the other one is a spoke tensioning key. Oh and the rubber rim plug sections are replaceable too.

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No. All tubeless rims use the smaller valve hole that only works with Presta. Do all valves fit all rim shapes? No, Tyrewiz requires you to remove a presta valve core to install the TyreWiz and the Fillmore's high-flow, no-clog design does not have a valve core. Use the valve core removal tool (integrated into spare alloy cap) to remove the core and fill with no puncture hassle tubeless sealant and inflate! Job Done. The long-time solution to this has been a removable valve core, which allows you to force more air in and simultaneously clean the valve of gunked-up sealant that accumulates there over time. And since the valve is high up in a Presta design, it constantly pulls more sealant into the main body of the valve whenever you attach it to a pump. This means sealant clogs are a constant issue. Thus, Presta valves require periodic maintenance and often replacing the valve altogether. Introducing our V2 Tubeless Valves with a new Tyre Insert Air Flow System. Featuring 6 slots machined into the base of the valve stem allowing them to be compatible with most tubeless tyre inserts and allow your tubeless sealant fluid and air to flow freely when running tubeless tyre inserts. We’ve also upgraded them to aircraft-grade 7075 aluminium to be lighter and stronger than before!