GRIME TIME
Dec 22, 2020
3 minutes
Q What is the B-tension limit screw on a rear mech for, and why is it important?
Jed Ferguson, Brighton
A The B-tension screw is an important adjustment to get right because it controls the distance between the top jockey wheel and the cassette. Essentially, the closer the jockey wheel is to the sprocket, the faster and smoother the shifting will be. This is because the angle between the jockey wheel and sprocket is larger
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