Box Components FH Cass Box Two Prime 9 12-50 E-BIKE BK 9s (SKU 180231)

Built for the heavier loads of e-bike riding, this Box Two Prime 9 cassette adds an extra tooth to each of the three highest gears for increased durability and decreased wear. Steel stamped cogs are pinned to lightweight spiders, the e-bike optimized 12 tooth gearing has an ultra-wide ratio with consistent progression, and it fits standard HG style freehub bodies. This is the 12-50 in black.

Features

• Prime 9 Technology is a counter-intuitive philosophy based on the less is more theory - it embraces range without adding complexity
• Adding an extra tooth to each of the three highest gears provides increased durability and decreased wear for the heavier loads of E-Bike riding
• Compatible with standard HG style freehub bodies
• Ultra-wide ratio with consistent progression
• Steel Stamped cogs pinned to lightweight spiders
• E-Bike optimized 12 tooth cassette gearing

Specifications