FEATURES
- 10-speed DYNA-SYS compact triple crankset
- Close step triple gear ratio (40-30-22T)
- Stable shifting performance
- HYPERDRIVE with HG-X chain
- Durable middle gear by composite technology
- Rigid and lightweight by HOLLOWTECH, OCTALINK
- Color options: Black, Silver
PRODUCT SPECIFICATIONS
| MODEL NO | FC-M523 |
|---|---|
| SERIES | SHIMANO |
| Color | Black | Silver |
| Axle length of BB-UN/ES (mm)_Threaded (normal) | 118 |
| Chainring combination | 40 |
|---|---|
| Compatible bottom bracket type_OCTALINK | ✔ |
| Crank fixing screw included | ✔ |
| Crank arm length (mm)_170 | ✔ |
| Crank arm length (mm)_175 | ✔ |
| Spider/Gear arms | 4 |
| OCTALINK | ✔ |
| Optional chain guard_With chain guard | ✔ |
| Optional chain guard_Without chain/bash guard | ✔ |
| Recommended bottom bracket_Threaded (E-type) | BB-ES300-E |
| Recommended bottom bracket_Threaded (normal) | BB-ES300 |
| Threaded bottom bracket shell width (mm)_68 | ✔ |
| Q-factor (mm) | 1828 |
