just discovered the reason that my bike sounded like a bag of spanners towards the end of last sunday's race was that the chain ring bolts were shockingly loose, which also explains why I was struggling to shift as well!
<=== should not be allowed spanners!
oh well, all sorted now, shifting like a dream, the 26 & 24 turbo cottons seem to be smaller than the 25 & 23 GP4000s they have replaced which is probably a good thing!
just discovered the reason that my bike sounded like a bag of spanners towards the end of last sunday's race was that the chain ring bolts were shockingly loose, which also explains why I was struggling to shift as well!
<=== should not be allowed spanners!
oh well, all sorted now, shifting like a dream, the 26 & 24 turbo cottons seem to be smaller than the 25 & 23 GP4000s they have replaced which is probably a good thing!