FEATURES
- 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: 170 mm
- Chainline: 55 mm
- Weight: 616 g (28T), 630 g (30T), 628 g (32T), 642 g (34T), 660 g (36T)
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) |
Chainring combination | 28T, 30T, 32T, 34T, 36T |
---|---|
Compatible bottom bracket type_Outboard | ✔ |
Crank fixing screw included | ✔ |
Crank arm length (mm)_165 | ✔ |
Crank arm length (mm)_170 | ✔ |
Crank arm length (mm)_175 | ✔ |
Crank arm length (mm)_180 | ✔ |
Spider/Gear arms | 4 |
HOLLOWTECH II | ✔ |
Optional chain guard_Without chain/bash guard | ✔ |
Recommended bottom bracket_Press-fit | BB-MT800-PA |
Recommended bottom bracket_Threaded (normal) | BB-MT800 |
Threaded bottom bracket shell width (mm)_68 | ✔ |
Threaded bottom bracket shell width (mm)_73 | ✔ |
Q-factor (mm) | 178 |
Chain line (mm) | 55 |
Compatible chain | HG 12-speed |
P.C.D. (mm) | Direct |
Rear speeds | 12 |
O.L.D._QR/Nut (mm) | 141 |
O.L.D._Thru (mm) | 148 |