Feature:1. Cancel the gear shift, reduce the driver's energy on shifting, and make the driver concentrate more on riding.2. The gear ratio can be continuously changed without changing the front and rear gears simultaneously.3. Remove excess parts and reduce weight. Easy to cleaning.4. Wonderful cycling accessory for mountain bike.5. 4 different types for you to choose, meet your different needs.Specification:Condition: 100% Brand New Item Type: Bike Positive & Negative Tooth Disc Material: aluminium alloy Color: Plating Color Optional: 32T, 34T, 36T, 38TApplicable crankset: BCD104mm, 4 holes are enclosed in a square, and the distance between the centers of the 2 holes is 104mm/4.1in .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 Positive & Negative Tooth Disc
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