Box Two Prime 9 X-Wide Cassette

$54.99 Save
Size 12-50T
Color Black

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The Box Two cassette was where Prime 9 started. Originally conceived as an E-MTB product to deliver long service life and extra range over fewer gears, we quickly grew to enjoy its abilities on unpowered MTBs. All cogs are stamped from steel and subsequently, the larger ones are pinned to alloy spiders. Due to its provenance, this is, without doubt, the most durable cassette in the range.

The Box Two E-Bike Cassette differentiates itself from its non-e-bike sibling by offering the 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 by distributing the load over a larger area! All cogs are stamped from steel and subsequently, the larger ones are pinned to alloy spiders. Due to its provenance, this is, without doubt, the most durable cassette in the range and perfect for any E-MTB.




Please see 
page 6 of our guide for notes regarding the 2 HG drivers.

Our Most Durable Cassette
Steel Stamped Cogs
Lightweight Alloy Spiders
Ultra-Wide Ratio with Consistent Progression

Process/Material
• Cogs: Stamped / Hardened Steel
• Spider: CNC / 6061-T6 Aluminum
• Lockring: CNC / 6061-T6 Aluminum
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
Compatibility
• Platform
• Non-Ebike / Ebike
• Driver: HG Freehub Body
• Chain:
• Box One Prime 9
• Box Two Prime 9
• Box Three Prime 9
Weight: 645g/22.7oz

Box One Prime 9 Chain 126L 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 Shifter Black
Box Two Prime 9 Shifter Black
Box Three Prime 9 Shifter Black

SKUBX-CS2-P9A1250-BK

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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
  • Optimized Shift Ramps
  • Consistent Gear Jumps
  • Lightweight Cassette
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