This model comes without the chainring.
The XTR M9120-1 offers smoother pedalling than the previous iteration, especially over bumpy terrain. It is also lighter and stiffer than before, and the easily exchangeable chainring makes this new model more convenient.
| model no | FC-M9120-1 |
| series | XTR M9100 Series |
| average weight | 558 g (38T) 550 g (36T) 539 g (34T) 534 g (32T) 535 g (30T) |
| chain line (mm) | 52 |
| compatible bb type_outboard | X |
| compatible bb type | Outboard |
| compatible chain | CN-M9100 |
| crank fixing bolt included | X |
| crank arm length (mm)_165.0 | X |
| crank arm length (mm)_170.0 | X |
| crank arm length (mm)_175.0 | X |
| gear arms | 4 arm |
| hollowtech ii | X |
| optional chain guard_without chain / bash guard | X |
| optional chain guard | Without chain / bash guard |
| p.c.d. (mm) | Direct |
| rear speeds | 11 (Wide flange) / 12 |
| recommended bb_pressfit | SM-BB94-41A |
| recommended bb_threaded (normal) | SM-BB93 |
| threaded bb shell width_68mm | X |
| threaded bb shell width_73mm | X |
| threaded bb shell width | 68mm, 73mm |
| q-factor (mm) | 168 |
| crank arm length | 170, 175 |
| MODEL NO | FC-M9120-1 |
| Series | XTR M9100 Series |
| Average weight | 558 g (38T) 550 g (36T) 539 g (34T) 534 g (32T) 535 g (30T) |
| Chain line (mm) | 52 |
| Compatible BB type_Outboard | X |
| Compatible BB type | Outboard |
| Compatible chain | CN-M9100 |
| Crank fixing bolt included | X |
| Crank arm length (mm)_165.0 | X |
| Crank arm length (mm)_170.0 | X |
| Crank arm length (mm)_175.0 | X |
| Gear arms | 4 arm |
| HOLLOWTECH II | X |
| Optional chain guard_Without chain / bash guard | X |
| Optional Chain Guard | Without chain / bash guard |
| P.C.D. (mm) | Direct |
| Rear speeds | 11 (Wide flange) / 12 |
| Recommended BB_Pressfit | SM-BB94-41A |
| Recommended BB_Threaded (normal) | SM-BB93 |
| Threaded BB shell width_68mm | X |
| Threaded BB shell width_73mm | X |
| Threaded BB shell width | 68mm, 73mm |
| Q-factor (mm) | 168 |
| Crank arm length | 170, 175 |
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