Technical Red Lodge Rotax 177 Gearing?

[Jsracing54]

Have come back to racing after 12 years and booked in for the meeting at Red Lodge on 4th March - 32 entered, so a bit of a baptism of fire it seems!! Any assistance as to sprocket range that I’ll need please?? TIA.

 

[mandelbug]

12/89 Might work as a starting point.

Circuit Gearing (ethanackroyd.co.uk) (Original)
Kart Circuit Gearing - Mark Lewis Blog (My copy which I can update if corrected)

 

[Adam]

12/89 Might work as a starting point.

Circuit Gearing (ethanackroyd.co.uk) (Original)
Kart Circuit Gearing - Mark Lewis Blog (My copy which I can update if corrected)

Good job there!

177 always seems to be 1 - 2 teeth more than 162 if that helps at all. 12/87 for 162 so 12/89 seems about right.