| 10B3 - British standard pilot bore roller chain sprocket |

| Attribute | Value |
|---|---|
| Overall Length | 55 |
| Boss Dia | 25 |
| Outside Dia | 47 |
| Number of Teeth | 8 |
| Pitch | 5/8 |
| Pilot Bore Size | 12 |
Disclaimer: Should a manufacturer of a given part not be available then a direct equivalent from an alternative manufacturer will be supplied.