Defy the norms.
The hollow Si crankset, paired with the any SpideRing, is an impressive upgrade for any mountain or road bike.
Where it thrives
Challenging trails, the open road, up and down hills
What it’s built for
- Compatible with all SpideRings and HollowGram spindles
- Self extracting bolts for easy removal
- 172g/arm including hardware
Model NameHollowGram Crank Right Arm
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