Feature:1. Made of quality steel material, high temperature resistance, durable, good impact performance.2. Quenching, multi-layer electroplating, anti-rust, high-precision tooth shape, loss-tooth design, strong compatibility, make riding increase more possible.3. Accurate positioning, sturdy, hollow out design, high performance.4. Wonderful accessory for mountain bike.5. 2 different type for you o choose, meet your different needs.Specification:Condition: 100% Brand New Item Type: Bike Flywheel Material: steel Color: As picture shown System: for XD systemOptional type: 11 speed 9-50T, 12 speed 9-50T11-speed gear ratio: 9-11-13-16-20-24-28-32-36-42-50T12-speed gear ratio: 9-11-13-15-18-21-24-28-32-36-42-50T .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List:1 x Bike Flywheel

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