Road Bike Valve Stem Extension

But having a safe stem shouldn t mean limited sizing options that s why bontrager stems come in a wide variety of lengths and rises.

Road bike valve stem extension. Then screw the extension onto the valve stem. We recommend pre installing a spare extender on to your spare inner tube or spare tubular tire. 17116 bob s gap rd valyermo ca 93563 0056 661 944 5239 slowman at slowtwitch dot com. Once on the bike he shot off up palani road and for miles he.

Using the supplied plastic wrench remove the original valve core and install it on the extension. The stem on the valve is quite long and thin and has a silver piece at the top which screws right the way off. The valve on it is not one of those you mention above and the adaptor you can buy to allow you to pump up a presta using a schrader attachment does not fit. If you do use a removable valve core you can take advantage of bontrager s valve stem extension about 12 bucks.

These extenders thread into the valve stem allowing you to control whether the valve is shut or open. Today s road rim widths are wider than those of mtb rims 10 years ago which used schrader valves. One kind of extender sits in between your valve stem and your valve core that is you remove the core if you have a tire or tube with a removable core thread the valve extender onto the valve stem then thread the core onto the extender. Luckily technology has gifted cycling with a better safer more robust valve alternative.

Doing so will greatly improve your flat changing time on the road especially in high pressure race situations. Off teemu went to commence the swim. Hi i have inherited a ladies bicycle called an esperia. Unlike a schrader the system doesn t use a check valve it seals entirely based on pressure in the tube or tire.

The valve stem opens by unscrewing a knurled textured nut at the top. Important to get right frustrating if you get it wrong. Now you can access the valve from the outside of the wheel.