Dirt Bike Valve Stem Nut Size

Summary those nuts they include with presta valve tubes are unnecessary.

Dirt bike valve stem nut size. I want to buy a socket for the nut on the steering stem between the handlebar mounts. As another poster said i can t see a reason to run the nut up against the valve cap it doesn t need a lock nut don t think i ever lost one. On my dirt bikes i do not use the nuts at all. Mar 13 2003 1.

Mar 13 2003 1. Once fitted to the wheel the two lock nuts sit on the valve cap side of the wheel rim. Steering stem nut what size. This will keep your tubes from ripping at the valve stem in the case of movement in the tire.

The valve stem is vulcanized to the tube and can be torn off if the tire spins on the rim so be sure the rim lock is properly installed. A rubber valve stem would quickly wear through by rubbing on the rim hole. Never tighten the nut on the valve stem down to the rim. The owner s manual of my 75 550 f states to tighten the valve stem retaining nut not nuts.

This is why the valve stem is metal. Adam jason show proper positioning of the valve stem nut on dirt bike tires. I run tubeless trials tires on the back at 5 8 lbs with 2 rim locks and never ripped a stem out of a tube well not yet. Now the reason i have the extra nut and valve stem remover is cus i also carry a spare 21 tube pump co2 and some other stuff to either ride out with a flat or worst case either patch or replace the tube and its nice to have the extra nut to hold the valve in place when you replace a tube if needed.

Start date mar 13 2003. Dirt bike brands other. 17th july 2009 21 45 14. The inside and outside nuts prevent the valve stem from sliding in and out the rim s valve stem hole during tire flex.

The conical washer sits over the inner tube valve stem and should follow the contour of the valve so that the convex side sits against the wheel rim when fitting. It is common for the valve stem to run in and out a inch or so while riding. I think some rims have different size holes for valve stem rim lock. Valve stem nut on dirt bike rear wheel.

I use larger hole for valve stem. The honda expert i get info from also says that the bikes came from japan with one nut on the valve stem then inserted into the rim the shaped washer and then the remaining nut is put on the valve stem outside the rim and tightened.