Features:
- Forged crank arms rigid whilst being incredibly strong and durable
- Hollowtech ii integrated bottom bracket design uses a wide bearing placement with a large axle diameter for increased stiffness, efficiency and added durability
- SG-x chainring with patented spike pins give smooth and fast gear shifts under load
- We recommend that the bottom bracket is initially installed by a bike shop to ensure perfect facing and fit
- 51.8 mm chain line for use with 148 mm o.L.D. Frames
- 11-speed compatible



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