BOX Three Prime 9 eBike Cassette - 9-Speed 12-50t Black Model Name-Lumina Micro 900 or heavier skiers

or heavier skiers

bright red

100% polyester

CB7 custom carbon layup allows for radial compliance to soak up speed robbing impacts

Triple layer 60 tpi casing with puncture-resistant crown ply for comfort and durability

BOX Three Prime 9 eBike Cassette - 9-Speed 12-50t Black Model Name-Lumina Micro 900 or heavier skiersThe 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 parts reduced weight and increased durability Cogs pinned