rim coverter for MTB rim to presta

[cyberknight]

Has anyone got a couple of these or is it possible to make some out of anything please?

I bought some conti travel contacts with inner tubes but it comes with a presta valve doh !

 

[jay clock]

Not sure what you are on about....

Firstly, the valve hole will either be large (Schrader/car valve) or small (Presta). If you have Presta they will fit in the bigger hole, so no problem

Are you concerned about some other issue? eg fitting "tubed" mtb tyres onto a tubeless rim?

 

[mcshroom]

Can be made from srew plugs, or rubber bands. I've had a presta tube on the back of a bike with a schraeder valve for a good year now without any rpoblems though. The tyre will hold itself in place pretty much, just screw the little nuts on the valve stems down to hold them steady

 

[cyberknight]

Can be made from srew plugs, or rubber bands. I've had a presta tube on the back of a bike with a schraeder valve for a good year now without any rpoblems though. The tyre will hold itself in place pretty much, just screw the little nuts on the valve stems down to hold them steady

Good idea, i never considered rubber bands .....potters off the the garage .

 

[jonathanw]

I use these for my winter rims

http://www.ukbikestore.co.uk/product/59/rt20/mavic-schreader-presta-rim-hole-adapters--10-pack-.html

 

[biggs682]

sold a bike once with presta tubes in schrieder rims and got moaned at for not having correct tubes in , i had ridden it for a while with no probs , so should not be a problem

 

[jonathanw]

sold a bike once with presta tubes in schrieder rims and got moaned at for not having correct tubes in , i had ridden it for a while with no probs , so should not be a problem

Lots of folks say they manage just fine. The risk is pinching the tube in the over large hole, but with good rim tape this is rarely a problem. I use the grommets above just to be sure as my winter wheels on the CX bike are MTB 29er rims. The rim tape holds the grommets in place really well.

 

[Cubist]

Make a grommet out of bits of old inner tube, stops any potential pinches