| 12B2 British standard roller chain sprocket |

| Attribute | Value |
|---|---|
| Boss Dia | 47 |
| Outside Dia | 75 |
| Number of Teeth | 11 |
| Pitch | 3/4 |
| Overall Length | 50 |
| Pilot Bore Size | 16 |
Disclaimer: Should a manufacturer of a given part not be available then a direct equivalent from an alternative manufacturer will be supplied.