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Shimano XT FC-M770 9-Speed Chainring 22T 64mm BCD

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This Shimano XT chainring is compatible with the FC-M770 3x9-speed cranks. It is an original spare part made of aluminium / composite. SG-X and HyperDrive technology ensure smooth shifts that are precisely matched to the other components.


Application: All Mountain
Mount: 64 mm bolt circle diameter, 4-arm
Teeth: 22T
Gearing: 3x9-speed


SG-X chainrings constitute a significant technological advance, as they allow extremely smooth shifting even under extreme load. Special tooth profiles, positioning pins and shifting aids allow the front shifting to go as smoothly and easily as you are accustomed from the rear components. SG-X chainrings ensure smoother, quieter and faster shifting.

Shimano´s front shifting system is based on the HyperDrive concept. The front derailleur, the HG chain and SG-X chainrings work in a coordinated combination to make shifting more reliable, faster and more accurate. Without HyperDrive, problems are quick to appear when shifting on the big chainring, especially when under load. Shimano's HyperDrive system solves those problems. The SG-X chainrings, Wide Link front derailleur and HG chain work together to improve chain control to provide precise and reliable front derailleur shifting that is especially beneficial in severe off-road riding conditions. The chainrings have an exceptionally high torsional stiffness. The tooth profile is specifically shaped to allow the chain to glide in both directions and be picked up smoothly while shifting.