VOANZO Rear Derailleur Pulley Aluminum Guide Wheel Bicycle Rear Derailleur Pulley for MTB Road Bike (Black)

VOANZO

Material: 7075 high-strength aluminum alloy Specification: suitable for 4/5/6MM shaft guide wheel screws Size: 11T-about 42 mm in diameter Weight: 11T = about 7G Purpose: Most rear dials on the market support 7/8/9/10 speed!