13T MTB Ceramic Bearing Jockey Wheel Pulley Road Bike Bicycle Rear Derailleur
13T MTB Ceramic Bearing Jockey Wheel Pulley Road Bike Bicycle Rear Derailleur. Rear derailleur jockey wheel selection principle There is no difference. You can choose a smaller one than the original rear derailleur jockey wheel. You cannot use a large one. Structure: Steel Palin.. Condition:: New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller's listing for full details. See all condition definitions : Brand: : Unbranded , MPN: : Does Not Apply .