SHIMANO - OCTALINK - HOLLOWTECH - MTB Crankset - 3x10-speed
Based on the premium SHIMANO DEORE XT and DEORE LX trekking product line, the FC-T521 offers 3x10 speed gearing and uses an OCTALINK bb interface. It includes an integrated chain guard.
- 10-speed Trekking crankset
- Following XT/LX trekking product concept
- Stable and smooth shifting performance
- Simple and sturdy design
- Integrated appearance of chain guard
- Rigid and lightweight by HOLLOWTECH, OCTALINK
- OCTALINK construction FC: 48-36-26T with CG/44-32-24T with CG available
- Recommended BB-ES300
TECHNOLOGIES
PRODUCT SPECIFICATIONS
| MODEL NO | FC-T521 |
|---|---|
| SERIES | SHIMANO |
| Color | Black | Silver |
| Axle length of BB-UN/ ES (mm)_Threaded (chain case) | 121-AK |
| Axle length of BB-UN/ ES (mm)_Threaded (normal) | 121-AK |
|---|---|
| Arm adapter | ✔ |
| Chain case compatible | ✔ |
| Chain line (mm) | 50 |
| Chain ring combination | 48-36-26T, 44-32-24T |
| Compatible BB type_Octalink | ✔ |
| Compatible chain | HG-X 10-speed |
| Crank fixing bolt included | ✔ |
| Crank arm length (mm)_170.0 | ✔ |
| Crank arm length (mm)_175.0 | ✔ |
| Gear arms | 4 arm |
| HOLLOWTECH crank arm | ✔ |
| OCTALINK technology | ✔ |
| Optional chain guard_With chain guard | ✔ |
| Optional chain guard_Without chain / bash guard | ✔ |
| P.C.D. (mm) | 104/64 |
| Rear speeds | 10 |
| Recommended BB_Threaded (chain case) | BB-ES300-AK |
| Recommended BB_Threaded (normal) | BB-ES300 |
| Stainless chain guard fixing bolt | ✔ |
| Threaded BB shell width_68mm | ✔ |
| Threaded BB shell width_73mm | ✔ |
| Q-factor (mm) | 185.8 |
REPLACEMENT PARTS
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Chainring Chainring 48T for FC-T521 (for 48-36-26T)
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Chainring Chainring 48T for FC-T521 (for 48-36-26T) (with C/G)
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Chainring Chainring 44T for FC-T521( for 44-32-24T)
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Chainring Chainring 44T for FC-T521( for 44-32-24T) (with C/G)
