Box Three Prime 9 9-Speed E-Bike Cassette

The Box Three E-Bike Cassette offers high gears with more teeth to withstand the rigours of modern E-Bike riding. 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! The Box Three E-Bike cassette draws from both its Box One and Box Two siblings to create a sensible all-rounder. All sprockets are stamped from steel and subsequently, the larger ones are pinned to steel spiders. The main difference here versus Box Two is the use of additional weight-reducing holes on the sprockets.

Technology

Prime 9

Prime 9 technology is a counter-intuitive philosophy based on the less is more theory. It embraces range wihtout adding complexity. The outcome is fewer parts, reduced weight, and increased durability.

Is Prime 9 Simpler?

• Same Range With Fewer Gears
• Ease of Set-up
• Wide Compatibility
• Less Maintenance
• Don’t Worry, All Bike Shops Are Familiar With 9-Speed Platforms!

Is Prime 9 More Durable?

• Straighter Chain-line
• Unique 9-Speed Chain
• Single Shift Option (E-MTB)
• Fewer Gears (fewer shifts)
• ​Full Steel Cassette (all tiers)

Does Prime 9 Perform Better?

• Shifting Less Means Faster Riding
• Optimised Shift Ramps
• Consistent Gear Jumps
• Lightweight Cassette

Features

• Box Components's best all-rounder cassette
• Steel stamped cogs
• Steel stamped spiders
• Ultra-wide ratio with consistent progression

Specification

• Process/Material:
• Cogs: Stamped / Hardened Steel
• Spider: Stamped / Hardened Steel
• Lockring: CNC / Hardened Steel
• Finish: ED Black
• Speeds: 9
• Gear:
• [12-46T] 12 - 14 - 16 - 18 - 22 - 28 - 34 - 40 - 46T
• [12-50T] 12 - 14 - 16 - 18 - 22 - 28 - 34 - 42 - 50T
• Compatibility:
• Platform
• E-Bike
• Driver: HG Freehub Body
• Chain:
• Box One Prime 9
• Box Two Prime 9
• Box Three Prime 9
• Weight:
• Box One Prime 9
• [11-46T] 565g /19.2oz
• [11-50T] 660g /23.2oz

Compatibility

• Box One Prime 9 126 Link Chain DLC Black
• Box Two Prime 9 126 Link Chain Nickel
• Box Three Prime 9 126 Link Chain Polished
• Box One Prime 9 Rear Derailleur
• Box Two Prime 9 X-Wide Rear Derailleur Black
• Box Three Prime 9 X-Wide Rear Derailleur Black
• Box One Prime 9 Single Shifter Black
• Box Two Prime 9 Single Shifter Black
• Box Three Prime 9 Single Shifter Black