Honda CB350 K4 Close Ratio 6 Speed Gearbox

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Full six speed close ratio gear set comprising both input and output shafts and all gears, selector drum with indexing block and works with the standard selector forks.  Supplied fully assembled ready for installation.

All engagement dogs are undercut and have three dogs to promote positive and rapid engagement.

Due to the change in diameter of the gears, the kickstart mechanism will not work with this gearbox, therefore roller starters will be required to start up.

 

NOTE: A small modification is required to the standard selector forks, this is simply to clear the Nova gears when shifting.  For instructions CLICK HERE.

 

Available With Superfinish

 

Nova Gear Ratios             % Drop                 Standard Honda Ratios      % Drop 

1st   17 - 34    2.000:1                                     1st         2.353:1  
                                          )         25.0%                                              )                30.5%
2nd  22 - 23    1.500:1                                    2nd        1.636:1 
                                          )         15.0%                                              )                22.4%
3rd   22 - 28    1.273:1                                     3rd        1.269:1 
                                          )         12.7%                                              )                18.4%
4th   27 - 30    1.111:1                                      4th        1.036:1  
                                          )         10.0%                                              )                13.1% 
5th   25 - 25    1.000:1                                      5th        0.900:1 
                                          )           7.1%
6th   28 - 26   0.929:1  

 

Overall Reduction 1st - 6th    53.6%             Overall Reduction 1st - 5th    61.8%

 

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

 

Price £1325 + VAT (if applicable) & Carriage

 

	Nova Honda CB350 K4 6 Speed Race Gearbox

Honda CB350 K4 Updated Selector Mechanism

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This updated selector mechanism is designed to be used with Nova 6 speed gearboxes only, and replaces the MK3 Honda mechanism.  It will not work with the earlier MK1 & MK2 mechanisms.  Please contact us or send us a photo of your mechanism if you are unsure of compatibility.

 

Kit Includes the folloing components.

Retaining Washer

M6 x 30 Countersunk Bolt

Indexer Plate

Indexer Plate Rivet

Indexer Plate Spring

Indexing Roller

Indexing Roller Arm

Indexing Roller Rivet

 

A revised pin block and hook arm are available on request at an additional cost.

 

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

 

Price £50 + VAT (if applicable) & Carriage

 

	Nova Honda CB350 K4 Updates Selector Mechanism