Description
Description
The Box Two Prime 9 X-Wide cassette is where Prime 9 began. Originally developed for E-MTBs to deliver long service life and a wide gear range with fewer gears, it quickly proved itself on unpowered MTBs as well. All cogs are stamped from steel, with the larger ones pinned to alloy spiders for added strength and durability. Due to its origins, it remains the most durable cassette in the range. Available in two versions, the standard 11-50T is suited for traditional MTB use, while the 12-50T E-Bike version features slightly adjusted gear spacing optimised to handle the unique torque and load demands of E-MTB riding, offering smoother power transfer and increased longevity.
Specifications
- Process/Material - Cogs: Stamped / Hardened Steel
- Spider: CNC / 6061-T6 Aluminium
- Lockring: CNC / 6061-T6 Aluminium
- Finish: ED Black
- Speeds: 9
- Non-Ebike Gear: 11 - 13 - 15 - 18 - 22 - 28 - 34 - 42 - 50
- Ebike Gear: 12 - 14 - 16 - 18 - 22 - 28 - 34 - 42 - 50
- Platform: Ebike, Non-Ebike
- Driver: HG Freehub Body
- Chain compatibility: Box One Prime 9, Box Two Prime 9, Box Three Prime 9
- Weight: 645g/22.7oz
Product Reviews
Product Reviews
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Sent directly from our partner
Special Order
Special Order
Special Order items are ordered for you from our supplier. Your whole order will be held until all items are in stock and will ship in 10-14 days.
If you are ordering other items which are in stock, you may wish to order those separately so they ship without delay.

