[mr_dove]

I'm having trouble tracking down some thorn resistant tubes with a presta valve. Most of them have shraeder valves.

Can anyone tell me where I can get them (for the best price)?

 

[syadasti]

Get them here.

 

[Phreaddy]

asking your LBS to order some? Or try all the mail order places?

By the way, Slime, which works great, is now available in a Presta-compatible formula. You can also buy pre-Slimed tubes.

 

[gtbike]

you are a pinch flat knid of rider. They make a nasty mess and the tube material is too thin (it's got slime so it doesn't have to be thick rubber). In the Dez we have many thorns AND rocks. I use a thorn proof presta, plastic tire strips and as much or little pressure as I want too. Slimes are otherwise great, just nasty for pinch faltting

 

[Optikal]

You can drill your presta rims out to use a schrader valve. I can't remember what size drill bit to use, but find the one closest in size to a schrader valve.

Clamp the rim in a vice (using a piece of cloth so as not to scrach the rim) and start drilling.

 

[crazybastard]

here is a cheap way to do it if you have fat tires take a regular tube cut out the valve and slide the preiaesta valve in it there you go

 

[Shibby]

Kenda freeride tubes
Hutchinson green DH tubes

both presta, both thick, both 26"

23/64ths inch bit for going to schraeder
i just sit the rim on the ground and push straight through the hole with the wider bit. no vices here