PASS QUEST Soil Slope Bicycle Singled Flywheel Modified Sstreet Climbing Bicycle Flywh Suitable For Shimano 8/9/10 Speed Chain

Model 13T or 14T or 15T or 16T 17T or 18T or 19T or 20T or 21T Color Black  or Silver or Fade color Made from 7075-T651 Aluminum Alloy Surface coating Anodizing Made with CNC milling Thickness 8mm Timing 108° after TDC (top dead center) Chainring shape Round Compatible cranksets Supports chains up to 10speeds and half length chains Weight, grams 14(13T), 18（14T), 22 (15T) ,26 (16T),30 (17T), 33 (18T), 41(19T), 48（20T), 51 (21T)  Chain compatibility Support 8/9/10 Speed Chain    Support paying an extra $10 to customize the same silver color Bicycle shop or dealer contact customer service                   SINGLE SPEED FLYWHEEL THE SINGLE SPEED FLYWHEEL IS MADE OF 7075-T651 ALUMINUM PLATE BY CNC MILLING.WITH HIGH STRENGTH AND DURABILITY