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- Adjustable spring tension lets you adjust for cassette size and chain length to find the lowest possible tension (and lowest watts lost) for your needs
- Orbit Xtreme Pro include stainless steel industrial cartridge bearings and stainless crown race
- Fits Shimano & ISIS splined 20t bottom bracket cups
Stem Clamp Diameter: Headshok + Lefty 1
RS8253 ST6993
SRAM/Truvativ X0 X9 39T 120mm GXP Chainring Use with 26T Tapping & Threading Tools - Adjustable spring tension lets7075 T6 aluminum construction with a blast black anodized finish treatment and CNC laser detailing for 10 speed drivetrains (X0 level) \n For inner 22 24t 64mm BCD (AM) chainrings see 8 9sp 'Mtn Aluminum' group \n Thick taper outer ring specific to SRAM cranks and employ a threaded tab for direct mount chainring bolts (outer chainrings specific to GXP or BB30 cranks) \n Middle outer rings employ perfect timed shift pins and ramps for precise shifting
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