using superlight inner tubes on a fixie riding London streets? there in lies your problem.
I ride with Continental Race 28 Supersonic tubes (48g), I probably get the occasional puncture that a much heavier tube would survive, but it is never enough to concern me too much, punctures are fairly rare either way and trivial to sort out.
I ride with Continental Race 28 Supersonic tubes (48g), I probably get the occasional puncture that a much heavier tube would survive, but it is never enough to concern me too much, punctures are fairly rare either way and trivial to sort out.