● Ball bearings ensure smooth rotation. ● Higher rigidity and less power loss than plastic pulleys. ● Ideal for upgrading bushing-type derailleurs found in mid-range and lower models. ● Can be used with both the guide pulley (upper) and tension pulley (lower). ● Recommended tooth count is the size that comes standard with the derailleur. ● Contains one. Material: CNC-machined 7075 aluminum alloy Bearings: Stainless steel Compatible with: SHIMANO, CAMPAGNOLO, and SRAM 9-, 10-, and 11-speed derailleurs (not compatible with SRAM guide pulleys). *Please be sure to check the gear shifting operation using an adjustment stand before riding after installation. Bent derailleur hangers, etc., may cause the chain to come off, potentially damaging the frame or rear derailleur. *The image shows an 11T model.
