Yamaha LC350 & YPVS Gearbox

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Yamaha LC350 & YPVS Low Ratio Conversion with Input Shaft

Whilst the top three ratios are close and well spaced for racing there is a high gap between 3rd and 4th gear, a particularly undesirable feature for racing.

Raising the first three gears to close the gap also closes all the ratios.

To give an overall reduction the same as the TZ250/350 the components supplied are a replacement input shaft and 1st output, both 2nd gears and 3rd output.  These kits were first made by at Nova back in 1984.

Please specify LC350 or YPVS when ordering as they have different shafts and 3rd output gears.

 

These are now also supplied with new 1st and 2nd gear bushes.

 

NOTE: We currently do not have stock of the LC350 shafts, but they will be made to order, and stock will follow if there is demand.

 

Available With Superfinish

 

Comparison to Standard Yamaha YPVS Gearbox

 

Nova Race Gearset                % Drop              Yamaha Standard Box               

 

1st      16 - 33        2.063:1                                  1st      14 - 36        2.571:1  
                                                 )   23.5%                                                                  )     30.9%
2nd     19 - 30        1.579:1                                 2nd     18 - 32         1.777:1 
                                                 )   19.4%                                                                  )     25.8%
3rd      22 - 28        1.272:1                                  3rd      22 - 29        1.318:1 
                                                 )   14.9%                                                                  )     17.8%
4th       24 - 26        1.083:1                                  4th      24 - 26        1.083:1   
                                                 )   11.3%                                                                  )     11.3%
5th      26 - 25         0.961:1                                  5th      26 - 25        0.961:1  

                                                 )     7.5%                                                                  )       7.5%

6th      27 - 24         0.889:1                                  6th      27 - 24        0.889:1
                                 

Overall Reduction 1st - 6th     58.0%                 Overall Reduction 1st - 6th      65.4 %

 

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

 

Price £615 + VAT (if applicable) & Carriage

 

	Nova Yamaha YPVS Close Ratio Conversion

 

Yamaha LC350 & YPVS Low Ratio Conversion Gearbox 

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The components supplied are replacement 1st, 2nd, 3rd output gears and 2nd Input.  Please specify LC or YPVS when ordering, as they have a different width 3rd output gear.  These are now also supplied with new 1st and 2nd gear bushes.

 

Available With Superfinish

 

Comparison to Standard Yamaha LC350 & YPVS Gearbox

 

Nova Race Gearset                % Drop              Yamaha Standard Box               

 

1st      14 - 33        2.357:1                                  1st      14 - 36        2.571:1  
                                                 )   33.0%                                                                  )     30.9%
2nd     19 - 30        1.579:1                                 2nd     18 - 32         1.777:1 
                                                 )   19.4%                                                                  )     25.8%
3rd      22 - 28        1.272:1                                  3rd      22 - 29        1.318:1 
                                                 )   14.9%                                                                  )     17.8%
4th       24 - 26        1.083:1                                  4th      24 - 26        1.083:1   
                                                 )   11.3%                                                                  )     11.3%
5th      26 - 25         0.961:1                                  5th      26 - 25        0.961:1  

                                                 )     7.5%                                                                  )       7.5%

6th      27 - 24         0.889:1                                  6th      27 - 24        0.889:1
                                 

Overall Reduction 1st - 6th     62.3%                 Overall Reduction 1st - 6th      65.4 %

 

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

 

Price £410 + VAT (if applicable) & Carriage

 

	Yamaha LC350 & YPVS Close Ratio Gearbox Conversion