250, 350 & 450 Ducati Single Gearboxes

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We manufacture both wide and narrow case close ratio gearboxes for 250, 350 and 450 Ducati Single motorcycles.  We also offer a Ducati Single dry clutch kit and a range of primary gears to suit both wet & dry clutch engines. 

Close ratio gear sets

This comprises of Input Shaft and all other gears with an option to purchase a new output shaft.   All gears have three undercut engagement dogs for rapid and positive selection. 

 

The close ratio gear sets are available for both wide crankcase and narrow crankcase models.

We have taken the opportunity to improve the strength of all the gears as far as possible.  The input shaft is also improved by enlarging the shoulders either side of the gear to give more positive location.

 

Available With Superfinish

 

Nova Gearset ratios

1st        16 - 36       2.250:1

                                                        )    26.7%
2nd       20 - 33       1.650:1

                                                        )    20.1%

3rd        22 - 29       1.318:1

                                                        )    15.0%

4th        25 - 28       1.120:1

                                                        )    10.7%
5th        26 - 26       1.000:1  

 

Overall Reduction                             55.6%

 

Our products are all manufactured from the highest quality certificated gear steel and heat treated by certificated processors.

We can also supply new standard 3rd gear inputs which are no longer available from Ducati.

 

Narrow case version (Fits 250 & 350 Versions)

The narrow crankcase version is more expensive due to the manufacturing costs associated with the internal engagement dogs on first and fifth output shaft gears.  To locate the bearing which supports the output shaft, adjacent to 1st gear, a separate collar is supplied with lock screws to clamp to the output shaft.  The kick start mechanism is therefore dispensed with. 

 

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

 

Price £940 + VAT (if applicable) & carriage

 

	Nova Ducati Single Narrow Case Gearbox

 

Wide case version (Fits 250, 350 & 450 Versions)

 

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

 

Price £910 + VAT (if applicable) & Carriage

 

 

	Nova Ducati Single Wide Case Gearbox

 

Ducati Single Output Shaft

Wide and narrow case versions available.

 

Price £115 + VAT (if applicable) & carriage

	Nova Ducati Single Output Shaft

 

Primary Drives

Wet Clutch

The conversion comprises of a set of straight cut primary gears for 250, 350 or 450 versions and a hard anodized aluminium clutch basket which is secured by screws to the Clutch Primary Gear.

 

Primary Ratios:

250    2.46:1

350    2.07:1

450    1.88:1

 

Price £295 + VAT (if applicable) & carriage

 

	Nova Ducati Wet Clutch