- Superior chain retention
- Special MTB gear teeth profile improves chain engagement and retention
- DYNAMIC CHAIN ENGAGEMENT+
- Rigid and lightweight design for aggressive trail riding
- Hollow forged crank maximizes power transfer while limiting weight
- HOLLOWTECH II
- Q-factor: 178 mm
- Chainline: 55 mm
- Weight: 616 g (28T), 630 g (30T), 628 g (32T), 642 g (34T), 660 g (36T)
TECHNOLOGIES
PRODUCT SPECIFICATIONS
MODEL NO | FC-M8120-1 |
---|---|
SERIES | DEORE XT M8100 Series |
Color | Series color |
Average weight | 660 (36T), 642 (34T), 628 (32T), 630 (30T), 616 (28T) |
Chain line (mm) | 55 |
---|---|
Chain ring combination | 28T, 30T, 32T, 34T, 36T |
Compatible BB type_Outboard | ✔ |
Compatible chain | HG 12-speed |
Crank fixing bolt included | ✔ |
Crank arm length (mm)_165.0 | ✔ |
Crank arm length (mm)_170.0 | ✔ |
Crank arm length (mm)_175.0 | ✔ |
Crank arm length (mm)_180.0 | ✔ |
Gear arms | 4 |
HOLLOWTECH II | ✔ |
Optional chain guard_Without chain / bash guard | ✔ |
P.C.D. (mm) | Direct |
Rear speeds | 12 |
Recommended BB_Pressfit | BB-MT800-PA |
Recommended BB_Threaded (normal) | BB-MT800 |
Threaded BB shell width_68mm | ✔ |
Threaded BB shell width_73mm | ✔ |
Q-factor (mm) | 178 |