Most helpful critical review
1 of 1 people found the following review helpful
on 2 February 2014
This does not fit my Trek T30 bike, which is a very widely available bike. The screw holes are in the wrong place (probably sortable by drilling very carefully) but (not solvable) it is too small to fit round the gear changing mechanism. Calling this "universal" is just false. Amazon should stop selling it, or stop calling it "universal" and instead give the measurements.