The Box Four E-Bike Cassette offers high gears with more teeth to withstand the rigors of modern E-Bike riding. Adding an extra tooth to each of the three highest gears provides increased durability and decreased wear.
 
E-Bike Optimized 12 Tooth Cassette
Compatible with HG Freehub Bodies
Steel Stamped Cogs
Wide Ratio & Consistent Progression
ED Black Protective finish