Box components Box Three Prime 9 X-Wide Multi Shift E-Bike Group Set Black

Wide range 9 speed single-shift group for use with e-bikes. Simple durable performance without all the bells and whistles. Includes E-bike optimized 12-50t cassette rear derailleur shifter and chain. Single shift per swing for E-Bike safe shifting. Wide ratio with consistent progression. Glass fiber / nylon composite steel and aluminum construction