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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. 

Ariel Arrow

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The Ariel Arrow as a "racer" is best remembered for its performance in the TT.   However this may well have been improved if a six speed gearbox had been available at the time.  The gearbox which we have designed and manufactured for the Ariel Arrow fits directly into the standard cases and uses the existing end cover and sandwich plate.

N.B.  This has to be machined to accept the new gearbox cassette plate, or can be offered as an exchange

The gear ratio's are as follows:

6 speed Gear ratio's          Percentage drop

1st   16 - 27    2.156:1  
                                       )          24.27%
2nd  18 - 23   1.6327:1  
                                       )          17.80%
3rd   20 -  21   1.342:1  
                                       )          12.74%
4th   24 - 22   1.171:1  
                                       )          8.37%
5th   25 - 21   1.073:1  
                                       )          6.8%
6th                          1:1  

Overall reduction 1st - 6th   53.6%

Price £1800 +  carriage & vat 


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