自転車のカセットがカチカチ音を立てています。歯の 1 つがチェーンに入りにくいのですが、その理由がわかりません。
Bike cassette making clicking sound. There is one of the teeth that has difficulty getting in the chain, but I can’t understand why.
byu/Ok-Cardiologist3321 inbikewrench
by Ok-Cardiologist3321