alltoo 1pc Bicycle Rear Derailleur Chain Gap Flywheel Guide Wheel GG Adjustment Gauge Tool For Shimano RD9250 8150 7150 Special (FOR 9250 8150)

FOR SHIMANO TOOL 【Adjustment tool】This adjustment piece can adjust the gap between the largest flywheel and the guide wheel to any of the following sizes according to the specifications of the cassette flywheel currently in use. 【Compatibility】 The bicycle rear derailleur chain gap adjustment gauge tool is suitable for Shimano RD 9250 8150 7150 special tools. 【Different specifications】The bicycle rear derailleur chain gap flywheel guide wheel GG adjustment gauge tool has different specifications. Please be sure to use the correct GG adjustment amount for the rear derailleur when using it. 【After-sales service】 If you have any questions about our products, please feel free to contact us, we will reply and answer your questions within 24 hours