SM-CRE61 (38T, Dark Gray)
| Series | SHIMANO | ||
|---|---|---|---|
| Model no. | |||
| Color | 1 | Dark Gray | |
| 2 | Silver (w/o CG only) * | ||
| 3 | Black (w/o CG only) * | ||
| Gear speed | 1 | ||
| Rear speed | 12-speed | - | |
| 11-speed | ✔ | ||
| 10-speed | ✔ | ||
| 9-speed | ✔ | ||
| 8-speed | |||
| 7-speed | |||
| 5-speed | |||
| Single | ✔ | ||
| Compatible chain | HG-X 10-speed**, HG 9-speed**, HG 8/7/6-speed, Single speed | ||
| DYNAMIC CHAIN ENGAGEMENT+ | - | ||
| Chainring teeth | Combination | - | |
| 47T | - | ||
| 44T | ✔ | ||
| 42T | - | ||
| 40T | - | ||
| 38T | ✔ | ||
| 36T | - | ||
| 34T | - | ||
| 32T | - | ||
| Others | - | ||
| Chain guard type | Double | ✔ | |
| Single | ✔ | ||
| w/o chain guard | ✔ | ||
| Chainring fixing lock nut | Included in drive unit | ||
| Arm cover outer diameter (mm) | 95 (w/o chain guard only) | ||
| Chain device compatible | - | ||
| Chain case compatible | ✔ | ||
| Chain line (mm) | 56.5 | - | |
| 55 | - | ||
| 53 | - | ||
| 50 | - | ||
| 49.7 | - | ||
| 47 | - | ||
| 46.5 | ✔ | ||
| Belt line (mm) | 46 | - | |
| 43 | - | ||
| P.C.D. (mm) | - | ||
| Chainring | Material | Steel | |
| Finish | Painted | ||
| Spider arm | Material | - | |
| Finish | - | ||
| Chainring fixing bolt | Material | Stainless steel | |
| Finish | - | ||
| Spider/gear arms | 4 | ||
| Average weight (g) | - | ||
| Note | * Color of arm cover ** E-BIKE rear derailleur system compatible chain | ||