Box Four

Wide rangle 8 speed group based on the same simple principle of the Prime 9 groups
Includes 8s multi shift derailleur, trigger shifter, chain and 11-42t cassette
Glass Fiber / Nylon Composite, Steel, Aluminum

Wide range 8 speed group based on the same simple principle of the Prime 9 groups
Includes 8s single shift derailleur, trigger shifter, chain and 11-42t cassette
Glass Fiber / Nylon Composite, Steel, Aluminum
Single shift per swing for E-bike safe shifting
Best paired with Box`s narrow/wide 8sp chainring