Tape Four E-Bike 12-42

The Box Components Four 8V E-Bike cassette features larger starting sprockets to increase resistance to the rigors of modern e-bike riding. The addition of an extra tooth to each of the first three sprockets offers increased durability and reduced wear by distributing force over a larger surface area. Box Four cassette is born of the Prime 9 philosophy of durability, simplicity and reliability at a great price. All sprockets are made of steel and interlock with spacers for easy installation. The black treatment, common to all ranges, reduces sprocket wear and extends cassette life.