Kawasaki ZX12 Gearbox

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A direct replacement of the standard gears, we supply  all loose gears for both shafts.

All gears are the same ratio as standard and incorporate 3 undercut engagement dogs for rapid changes and positive retention when engaged.

The gears should be assembled onto the standard input & output shafts using the standard circlips, bearings, bushes, thrust washers etc.

 

PICTURE COMING SOON

 

Superfinished As Standard

 

Kawsaki Standard Box             % Drop       

 

1st      14 - 34        2.429:1  
                                                 )      24.9%
2nd     17 - 31        1.842:1 
                                                 )      21.0%
3rd      25 - 36        1.440:1 
                                                 )      13.2%
4th      24 - 30        1.250:1   
                                                 )        9.6%
5th      23 - 26        1.130:1  

                                                 )        8.6%

6th      30 – 31        1.033:1
                                 

Overall Reduction 1st – 6th       57.5 %

 

To find out about availability or to order this product or for further information please click here   

 

Price: £1350.00 + Carriage + VAT (If applicable)

 

Kawasaki ZX12 W/R Gearbox

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Designed for front engine rear wheel drive road cars where it is not possible to achieve the desired overall rear axle ratio.  The extended range of the Nova gearbox overcomes this problem.  1st to 4th have the same ratio as standard but both 5th & 6th gears have been raised.

 

PICTURE COMING SOON

 

Superfinished As Standard

 

Comparison to Standard Kawasaki ZX12 Gearbox

 

Nova Wide Ratio Gearset     %  Drop           Kawsaki Standard Box             % Drop       

 

1st      14 - 34        2.429:1                                1st      14 - 34        2.429:1  
                                                 )    24.9%                                                                 )     24.9%
2nd     17 - 31        1.824:1                               2nd     17 - 31        1.842:1 
                                                 )    21.0%                                                                 )     21.0%
3rd      25 - 36        1.440:1                                3rd      25 - 36        1.440:1 
                                                 )    13.2%                                                                 )     13.2%
4th      24 - 30        1.250:1                                 4th      24 - 30        1.250:1   
                                                 )    13.6%                                                                 )       9.6%
5th      26 - 28        1.077:1                                 5th      23 - 26        1.130:1  

                                                 )    11.0%                                                                 )       8.6%

6th      24 – 23        0.958:1                                6th      30 – 31        1.033:1
                                 

Overall Reduction 1st – 6th      60.6%            Overall Reduction 1st – 6th           57.5 %

 

To find out about availability or to order this product or for further information please click here   

 

Price: £1350.00 + Carriage + VAT (If applicable)