Honda CB72 & Honda CB77 5 Speed Road Version Gearbox

The Nova Honda CB72 & CB77 gearbox is a direct replacement for the standard four speed transmission.  The gear ratios have been chosen to reflect the sporting aspirations of the CB72/CB77 but still allowing for practical use around town.  The additional gear requires the removal of the kickstart mechanism.

 

The CB77 & CB72 five speed gearbox is supplied with both shafts assembled, requiring only shaft support bearings.  The five speed selector drum is supplied with three selector forks and a completely revised selector mechanism.

   
Nova Race Gearset >
1st 14 - 32 x LDR 2.782:1
} 37.9%
} 33.5%
} 15.4%
} 14.5%
2nd 19 - 27 x LDR 1.729:1
3rd 22 - 25 x LDR 1.383:1
4th 26 - 25 x LDR 1.170:1
5th 28 - 23 x LDR 1.000:1
 
Overall reduction 1st - 5th 64.1%
Honda Standard Box >
1st 3.120:1
} 44.2%
} 27.0%
} 21.3%
2nd 1.740:1
3rd 1.270:1
4th 1.000:1
 
Overall reduction 1st - 4th 70.0%

Honda CB72 & Honda CB77 5 Speed Road Version Gearbox

Price £1700.00

+VAT (if applicable) & Carriage

Availability: Call

Honda CB72/77 Duplex Primary Chain Sprockets

Duplex primary sprockets with solid mounting holes.

Designed to be used with duplex chain 1/4" Roller x 3/8" Pitch.

Honda CB72/77 Duplex Primary Chain Sprockets

Price £375.00

+VAT (if applicable) & Carriage

Availability: Call