The BOX Two Prime 9 Groupset delivers exceptional 9-speed performance, but in a simpler and more cost-effective package than BOX One. This kit includes a rear derailleur with a Tri-Pack Clutch, an 11-50 tooth cassette, shifter with snappy action, and a durable 9-speed chain.
- BOX's most durable drivetrain
- Prime 9 rear derailleur features a Tri-Pack clutch (non-adjustable)
- Derailleur is compatible with standard derailleur hangers (non-direct mount)
- Cassette is compatible with HG freehub bodies
- Compatible with most 10,11, and 12-speed wide/narrow chainrings
- Single shift option is recommended for eBike use