The Sram S1000 crankset is designed match the Sram X.7 and X.9 9-Speed drivetrain.
- 1-piece forged 6066 aluminum arm/spider design for optimized weight and strength to compliment X.7/X.9 drivetrains
- Optimized Q-factor with a 51mm chainline and a drive-side integrated GXP (Giga X Pipe) 24mm bottom bracket spindle for maximized stiffness
- GXP XR cartridge bearing bottom bracket included for 68/73mm threaded shells (can be upgraded to BlackBox ceramic / Team steel bearings or BB92 Press-Fit with separate bottom brackets)
- 3x9sp hard-anodized aluminum rings with shift pins/ramps, steel chainring bolts, M10 self-extractor crank/spindle bolt, and pedal washers
- 970g (with BB)
Confused about bottom bracket standards and what it is you need? Here's a comprehensive look at the subject:
The Bottom Bracket (Un)Standard blog post.