BOX Three Prime 9 eBike Cassette - 9-Speed 12-46t 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 parts reduced weight and increased durability

Cogs pinned to lightweight spiders

Constructed using a standard freehub body (HG)