11T Jockey Wheel Rear Derailleur Pulley For Mountain Bike Bicycle Replacemen KRI

Feature: \n 1. Used on rear derailleur for chain transportation and speed changing.\n2. 11T suits for 8/9/10/11 speed rear derailleur.\n3. Inner ceramic bearing is ultralight and owns high degree of lubrication, which can ensures its smooth working.\n4. Aluminum alloy construction is anti\u2011rust and corrosion resistance, durable for long time use.\n5. 2 replaceable 4mm and 5mm bushing is included to enrich your installation choices. \n\nSpecification: \nFeatures:\n\n--\n\nUsed on rear derailleur for chain transportation and speed changing. \n\n--\n\n11T suits for 8/9/10/11 speed rear derailleur. \n\n--\n\nInner ceramic bearing is ultralight and owns high degree of lubrication, which can ensures its smooth working. \n\n--\n\nAluminum alloy construction is anti-rust and corrosion resistance, durable for long time use. \n\n--\n\n2 replaceable 4mm and 5mm bushing is included to enrich your installation choices. \n\n--\n\nA necessary accessary for your bicycle. \n\nSpecificat: