Shimano HG12  1x12 Direct Mount Chainrings
Shimano HG12  1x12 Direct Mount Chainrings
Shimano HG12  1x12 Direct Mount Chainrings
Shimano HG12  1x12 Direct Mount Chainrings
Shimano HG12  1x12 Direct Mount Chainrings
Shimano HG12  1x12 Direct Mount Chainrings
Shimano HG12  1x12 Direct Mount Chainrings

Shimano HG12 1x12 Direct Mount Chainrings

Regular price $70.00

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 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, BC

      Customer Reviews
      5.0 Based on 2 Reviews
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      Filter Reviews:
      B
      03/31/2021
      Ben
      Canada Canada
      I recommend this product
      Nice bit of kit

      Good machining quality and anodizing out of the box. You can see a few machine marks if you look closely but that's normal for just about any CNC machined product. Great chain engagement, no weird noises. Jury is out on longevity but initial impressions are positive.

      BP
      02/08/2021
      Brett P.
      Canada Canada
      I recommend this product
      Optimizes chainline for climbing gears

      Great so far, fit perfectly