Box Four 8 Speed Wide Rear Derailleur Color:Black The Box Two chain's nickel

The Box Two chain's nickel plating adds both corrosion and wear-resistance

Lockring & Cogs replacement for Box Two Prime 9 EBIKE cassettes

the Box Four shifters take advantage of the "less is more" theme and exploit durability

Box Three Prime 9 12-46T E-Bike Cassette

Box Four 8 Speed Wide Rear Derailleur Color:Black The Box Two chain's nickelThe Box Four Rear Derailleur is the base of Prime 9 Technology that offers an affordable clutch based 1 by 8 speed derailleur that is simple and light; this makes it a perfect candidate for every entry level bike that traditionally has a 3 by drive train that is neither durable nor user friendly. SUPPORT MATERIAL Prime 9 Technology View Prime 9 Drivetrain Compatibility Manual How is the Ebike variant different? View Prime 9 Comparison Chart View Prime