Honda CB400/4 (400 Four) Close Ratio Gearbox Conversion

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This has been designed to give a low cost close ratio gearbox using new and existing gears.

 

We supply a new input shaft, 1st, 2nd & 3rd output gears and 5th & 6th Input.  All other gears, circlips, bushes, etc are retained from the customers standard box.

 

Comparison to Standard Honda CB400/4 6 Speed

 

Nova Race Gearset            %  Drop                Honda Standard Box    % Drop       

 

1st      16 - 35        2.188:1                                 1st      2.733:1  
                                                  )   24.6%                                                 )     34.1%
2nd     20 - 33        1.650:1                                2nd      1.800:1 
                                                  )   21.7%                                                 )     23.6%
3rd      24 - 31        1.292:1                                 3rd      1.375:1 
                                                  )   14.0%                                                 )     19.2%
4th      27 - 30        1.111:1                                  4th      1.111:1   
                                                  )   10.0%                                                 )     13.1%
5th      28 - 28        1.100:1                                  5th      0.965:1  

                                                  )     7.2%                                                 )     10.3%

6th      28 - 26        0.928:1                                  6th      0.866:1
                                 

Overall Reduction 1st - 6th      57.6%              Reduction 1st - 6th        68.3%

 

Price £795 + VAT (if applicable) & Carriage

 

	Nova Honda CB400/4 Gearbox Conversion Kit