Product Details: ConditionBrand New Model: RD-TY21B Speed:6S/7S Level:Tourney Weight: 230 g Teeth:11+11 Short cage, for 20" and 24" bicycle Features: 1. Skewed scaler, precise shift 2. Large guide wheel, beautiful, long life, low noise 3. Can be replaced: TX71 TX51 TX31 TZ50 6/7 speed Shimano pull If you are hesitant about what kind you need, please send photos to yours so we can advise you. In addition to this, we have other models. |