ECSiNG 2PCS Bicycle Rear Derailleur Pulley 11T Jockey Wheel Aluminium Alloy Guide Wheel Bike Derailleur Accessories Metal Bearings for 4/5/6mm Shaft Multicolour

ECSiNG 2PCS Bicycle Rear Derailleur Pulley 11T Jockey Wheel Aluminium Alloy Guide Wheel Bike Derailleur Accessories Metal Bearings for 4/5/6mm Shaft Multicolour

• This bicycle derailleur accessories are compatible with most of rear derailleur on the market and adjust to 8/9/10/11 speed.
• The pulley is lightweight and has a compact size. Fit for 4/5/6 mm shaft.
• Made of aluminium alloy, which is lightweight and durable. It can also reduce resistance, which can improve efficiency when cycling.
• The bicycle rear derailleur pulley use metal bearings, for center bolt derailleurs which protect the bike. These pulleys run on smooth ball bearings.
• The pulley set is an accessory or spare part that is very easy to install with an Allen key by simply removing the screw that holds the part to the front derailleur.