Originally Posted by
Mad Darsh
sorry but why i have to drill the rim ? is changing worth ?
that's why i am asking about the better one...why bro ?
Sounds like you already have presta, stay with it. I never loose air when checking pressure with presta, but always did with S. Threaded presta can use the lock-screw already mentioned to keep the valve tight to the rim when inflating the tube. Don't risk ruining a rim by drilling it out. Both work fine. Use the adapter already mentioned if you need to once in a while.
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