Narrow-wide chainrings for Shimano direct-mount cranks. These chainrings are designed to give the optimum chainline, which gives the smoothest shifting across the whole cassette.
These rings are direct replacements for the OEM rings: SM-CRM75 SM-CRM85 SM-CRM95
The one-piece 7075 T6 Aluminum construction is lighter than the SM-CRM75 SM-CRM85 and has a similar weight to the SM-CRM95.
Fits:
- Shimano XTR FC M9100-1 M9120-1
- Shimano XT FC M8100-1 M8120-1 M3130-1
- Shimano SLX M7100-1 M7120-1 M7130-1
- Shimano Deore FC-M6100-1 FC-MT6120-1 FC-M6113-1
Specifications:
- Chainrings are compatible with Shimano HG12 12-speed chains such as:
- XTR CN-M9100
- XT CN-M8100
- SLX CN-M7100
- Machined from solid 7075 T6 Aluminum
- Anodized Black with Laser Etched Graphics
Chainline:
Shimano Chainline is determined by crank spindle length and spacers.
The chainlines with our chainrings on Shimano cranks are as follows.
- FC-M9100-1 = 52mm C.L.
- FC-M9120-1 = 52mm C.L.
- FC-M8100-1 = 52mm C.L.
- FC-M7100-1 = 52mm C.L.
- FC-M8120-1 = 55mm C.L.
- FC-M7120-1 = 55mm C.L.
- FC-M7130-1 = 56.5mm C.L.
- FC-M8130-1 = 56.5mm C.L.
Ring Offset:
- 5mm – from crank mounting face to center of teeth
Weight:
- 28T – 75 g
- 30T – 90 g
- 32T – 105 g
- 34T – 119g
Precision CNC Machined in Whistler, B.C.