Box components Box Four 8S Wide Single E-Bike Group Set Matte Black

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