check the rim tape, i had a smiliar problem but it turned out i was being retarded and didn't notice the rim tape not covering one of the holes in the rim. i wasted about 25 quids worth of inner tube on it
@TheCrane started
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check the rim tape, i had a smiliar problem but it turned out i was being retarded and didn't notice the rim tape not covering one of the holes in the rim. i wasted about 25 quids worth of inner tube on it