BOX Three Prime 9 eBike Cassette - 9-Speed 12-50t Black Weight-1960 Adjustable front wheel block for

Adjustable front wheel block for improved fit from 20` to 29` wheels

Rear Der/Shifter Compatibility SRAM X-Actuation Shifter Style Twist Drivetrain Speeds 11 Weight 150 Color Black

Includes all hardware to mount to bikes with brazed-on eyelets

welded zippers

BOX Three Prime 9 eBike Cassette - 9-Speed 12-50t Black Weight-1960 Adjustable front wheel block forBOX Three Prime 9 eBike Cassette 9 Speed 12 50t Black. The Box Three Prime 9 cassette is a great all around cassette option. All cogs are stamped from steel and subsequently the larger ones are pinned to alloy spiders. It also features weight reducing holes on the cogs. The Box Three Prime 9 offers ultra wide ratio with consistent progressions Prime 9 technology offers the same range as a 12 speed drivetrain with fewer gears to shift through Fewer