Box One Single Speed Aluminum Cogs sale Adding an extra tooth to

Adding an extra tooth to each of the three highest gears provides increased durability and decreased wear by distributing the load over a larger area

View Prime 9 Comparison Chart

Box Three Prime 9 12-46T E-Bike Cassette

The Box Four shifter's main features aren't strikingly different from Box Three's

The 144L option is ideal for cargo and long wheelbase bikes

Box One Single Speed Aluminum Cogs sale Adding an extra tooth toBox One Single Speed Aluminum Cogs are 7075 T6 aluminum alloy. It's designed to fit Shimano compatible cassette hubs and has a 5mm wide inner base, giving a more solid interface with the cassette body. The alloy cogs are anodized black with laser etched graphics.