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Supermono

April 2008

 

We are continuing to develop a range of transmission parts for the 4 stroke motorcross engines being converted for use in supermono racing.  Close ratio road race style 5 speed gear clusters have been produced for the CRF450 and YZF450 engines.  Higher ratio primary gears for the CRF engine are now available. 

A 6 speed gearbox for the CRF450 has successfully completed its first meeting, being placed 6th and 4th in the British Supermono Championship rounds at the Snetterton race track on 11th and 12th April. 

Kawasaki close ratio conversion

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This has been designed to give a low cost close ratio gearbox using new and existing gears.  It is in no way meant to be a replica of the factory gear sets, as the cost of this would be prohibitive.

The ratio's are as follows:
                                                                                               H2R Ratio's
1st       12     - 23*       1.917 : 1                                     
                                                     )      32.2%                       24.5%
2nd      20*  -  26*            1.3 : 1
                                                     )      18.8%                       19%
3rd       18    - 19*        1.056 : 1
                                                     )      12.9%                       14.1%
4th       25    - 23            0.92 : 1
                                                     )        7.6%                        8.2%
5th       20*  -  17           0.85 : 1


Overal Reduction 55.6%                                    Overall Reduction 51.8%

* These are the new gears

 

Price £425 + vat & carriage


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Nova Racing Transmissions Ltd  8 Horseshoe Yard  Crowland  PE6 0BJ  UK
Tel: 01733 210082  Email: info@novaracing.com