Originally Posted by
rumrunn6
I drill all my wheels to fit Schrader valves. can't stand presta. after drilling I debar them w/ a cpl diff. small files until they feel good to my touch, then coat the hole w/ some black paint. not sure why a wheel with an original Schrader hole would need treatment, but yeah feel it & see if it feels sharp. suppose it could be a manufacturing defect. sounds like it has been the same wheel, twice? just 2 times? how old is the bike/wheels? what brand are the wheels? wonder what brand tubes you are using, as well. & are you pumping there tires to a high enough pressure?
The hole in the wheel feels okish, but might try to lightly file edges or deburr if possible, don't have a tool, might use a bigger drill?
The wheel is less than a year old as is the bike, a Carbo X folding bike designed in the US.
Cannot see make on wheel, but the inner tube was 2-3 months old (second one) it had Taiwan marked on it....not sure if too low pressure has helped cause the problem.