Presta to Schrader Converter

[chrisan]

I'm having a hard time sourcing a presta to schrader converter that properly seals around the valve.

I've bought a couple recently, from different sellers, but they leak air when inflating the tyre. Obviously I can't trust the pressure reading. I intentionally avoided the cheap ones.

Can anyone recommend a converter that will do the job properly?

Thanks,
Chris

 

[Mobytek]

convertors are never going to be perfect as one is a screw down, one is pressure dependnent. Manufacturing tolerences are nearly always goung to give you a leak - if one is at the bottom end of acceptable and the other a the top, the ga in the middle is your leak

Instead of chaning the convertor as youl prbs never find a perfect one, try a bit of plumbers tape or similar around the thread.

 

[chrisan]

Thanks for the ideas - appreciate it.

 

[Steady]

Not a perfect solution, but there's a diy YouTube video somewhere regarding turning plastic valve dust caps into a good converter.

 

[shouldbeinbed]

+1 to @Mobytek. PTFE tape around the valve thread and screw the adaptor on and you're as good as you'll get.

Do you need a converter? its hard nowadays to find a pump that only fits one valve type, in almost every smaller pump you can flip the parts of the head to accommodate the appropriate valve type & track pumps invariably have dual heads, for the £20 odd cost of a decent small or usable track pump it's worth the investment.

 

[byegad]

Unless it's an aero rim drill it for Schrader inner tubes. An appropriately sized drill and some patience is all you need.