11-34T 11/12 Speed Bike Freewheel Cassette - 28-32T & 34-36T Compatible for MTB, Road & Hybrid Bicycles - Silver Finish - Perfect for Mountain Trails, Road Cycling & Commuting

12-speed hollow cassette flywheelColor: SilverDrivetrain Speeds: 11/12Cog Material: Nickel-plated, offers Hard wearing resistance to corrosionCarrier Material: High Tensile SteelRecommended Use: Road cycling, Mountain bikingSpecification:11-28 T：11-12-13-14-15-17-19-21-23-25-28，218g11-32 T：11-12-13-15-17-19-21-23-25-28-32，228g11-34 T：11-13-15-17-19-21-23-25-28-31-34，235g11-36 T：11-13-15-17-19-21-23-25-28-32-36，240g12-28 T：11-12-13-14-15-16-17-19-21-23-25-28，221g12-32 T：11-12-13-14-15-17-19-21-23-25-28-32，228g12-34 T：11-12-13-14-15-17-19-21-23-26-30-34，236g- There will be errors in electronic scale weighing, the error is within 20G- When the flywheel chain is used in combination with the old and new, the chain will slip and jump at the beginning. This is because the old parts are worn out during long-term use, and when the new parts are used in combination, the wear of the teeth makes it impossible to effectively engage. Generally, in such a situation, you only need to continue to run for tens of kilometers, and the problem will automatically disappear. If your chain has been used for more than 3,000 kilometers, it is recommended to change the chain at the same time as you change the flywheel.Important: We are committed to bringing the latest and most innovative high-quality bicycle accessories to the market. Our mission is to provide a relaxing riding experience for all outdoor enthusiasts. If you have any questions,please feel free to contact us, we will provide you with quality service and caring answers.