Profile Racing Imperial Sprocket 39t Black. Profile Imperial sprockets are CNC machined from 6061 Aluminum made in the USA. The Imperial is “bolt on” style and requires a sprocket bolt to be attached to crank arm.All Profile Imperial chainwheels have a .875" spindle hole with adapter to fit 0.75" spindles - they do not fit 1 or 2-piece cranks
For use with 19mm spindles only
3/32” teeth for 3/32” and 1/8” chains
- TECH SPECS
| Tooth Count | 39 |
| Defined Color | Black |
| Adaptor | None |
| Bore | 19mm |
| Interface | Bolt Drive |
| Color | Black |
| Material | Aluminum |
| Chain Width | 3/32" |