Honda CB72/77 Close Ratio Conversion

A close ratio conversion kit for short circuit racing for the Honda CB72/77.

This kit comprises a new 2nd gear pair which fits on the standard shafts with no modifications required and the 2nd mainshaft gear includes a new bronze bush.

Superfinished in house as standard.

1st 18 – 34 2.788:1
} 40.4%
} 29.5%
} 14.6%
2nd 24 – 27 1.667:1
3rd 29 – 23 1.171:1
4th 31 – 21 1.000:1
DR 21 – 31 1.476:1
Overall reduction 1st – 4th 64.1%

1st 18 – 34 2.788:1
} 47.1%
} 20.7%
} 14.6%
2nd 21 – 21 1.476:1
3rd 29 – 23 1.171:1
4th 31 – 21 1.000:1
DR 21 – 31 1.476:1
Overall reduction 1st – 4th 64.1%

Honda CB72/77 Close Ratio Conversion

Price £340.00

+VAT (if applicable) & Carriage.

Nova assembly: 237