





Box Two Prime 9 Chain XPT Zinc
The Box Two Zinc Extended Performance Treatment (XPT) Chain takes Prime 9 durability a step further with a zinc-based treatment that delivers up to 14 times greater corrosion resistance than standard nickel plating—ideal for wet, muddy, or high-salt conditions. Like all Prime 9 chains, it features chamfered shifting edges, solid plates, and solid pins for long-lasting strength, along with our unique inner link spacing designed to pair perfectly with wide/narrow chainrings. This variant makes the trusted simplicity of 9-speed even tougher, extending the life of your drivetrain without adding complexity.
SKUBX-CN2-P9A126-XZ
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
