Bit of a strange one this, adjusted my back wheel before racin on Sunday as fitted a new chain, what i have noticed though when i took the slack out of it, tightened up the back wheel and crank the back wheel round, all fine and dandy but what i noticed when i was checking the slack was it was going tight on the up stroke then slack again
The chain wheel does seem to be out ever so slightly where it bolts to the crank arm so was wandering if that would casue it?? or am i stupid