BOX Three Prime 9 eBike Cassette - 9-Speed 12-50t Black Weight-1960 Extended lower arm included for

Extended lower arm included for big screen smart phones (iPhone6+)

Cassette Freehub Compatibility XD-R Cog Material Steel Range 10-36T Cassette Spider Mat

Same link geometry as XX1 Eagle with solid pins and a more modest finish treatment

Its precise and easy to use design and dipped handle provide ergonomic use

BOX Three Prime 9 eBike Cassette - 9-Speed 12-50t Black Weight-1960 Extended lower arm included 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