The XTR FC-M9120-1 SHIMANO Crankset have a completely new construction and use direct mount plates, a special plate tooth profile to improve chain retention, and a 168 mm Q Factor. The FC-M9120-1 uses a 52mm chain line and can be converted between 1x and 2x, with 30, 32, 34, 36, and 38D plates available. Connecting arms of 165, 170 and 175mm are available.
| series | XTR M9100 Series |
| average weight | 545 (30T) 548 (32T) 562 (34T) 561 (36T) 569 (38T) |
| rear speeds | 12 |
| compatible chain | HG 12-speed |
| chain line | 52mm |
| o.l.d.|thru | 142mm, 148mm |
| o.l.d.|qr/nut | 135mm, 141mm |
| p.c.d. | Direct |
| spider/gear arms | 4 |
| chainring combination | 30T, 32T, 34T, 36T, 38T |
| q-factor | 168mm |
| Series | XTR M9100 Series |
| Average weight | 545 (30T) 548 (32T) 562 (34T) 561 (36T) 569 (38T) |
| Rear speeds | 12 |
| Compatible chain | HG 12-speed |
| Chain Line | 52mm |
| O.L.D.|Thru | 142mm, 148mm |
| O.L.D.|QR/Nut | 135mm, 141mm |
| P.C.D. | Direct |
| Spider/Gear arms | 4 |
| Chainring combination | 30T, 32T, 34T, 36T, 38T |
| q-factor | 168mm |
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