BSA Gold Star

                   Five Speed Road Touring Gearbox

<< back to products

The Nova BSA 5 Speed Road Gearbox offers more practical gearing than our close ratio 5 speed, making it a far more enjoyable gearbox to use on the road.  In summary it incorporates a lower first gear, a wider gap between 4th and top and a wider overall spread across the gearbox.

Designed to fit into the BSA pre unit gearbox shell, either standard with layshaft support bushes or RRT2 type using needle rollers.  It is possible to convert the standard case to use needle bearings by replacing the standard layshaft bushes.  Instructions can be found by clicking here.

It comprises of all the internal components for conversion to a five speed gearbox, the only original parts retained are the selector shaft and the selector pawl mechanism which connects directly to the gear lever.

The RRT2 speedo drive and standard kick start ratchet gear are retained, so that the gearbox may be used for both road and racing use.

 

We offer two different camplates to give either shift pattern. 

Our standard camplate gives 1 Down, 4 Up with a forward facing lever and standard footpeg position. This is sent as standard.

Our reverse camplate gives 1 Up, 4 Down with a forward facing lever and standard footpeg position. Please specify if you require this one when ordering.

If you have a different arrangement with rearsets and a different lever position please ensure you specify which camplate you require.

 

Click here for BSA Goldstar fitting guide

 

Click here for guide to convert standard shell to run needle bearings - this is optional.

 

Available With Superfinish

 

Ratio's as follows:

BSA 5 Speed Road                                % Drop             BSA RRT2                % Drop

1st        16 - 27   X  DR  =  2.482:1                                 1st    1.754:1 
                                                               )    31.8%                                          )      24.4%
2nd       20 - 23   X  DR  =  1.692:1                                2nd   1.326:1
                                                               )    20.0%                                          )      17.1%
3rd        25 - 23   X  DR  =  1.353:1                                 3rd   1.099:1 
                                                               )    13.9%                                          )        9.0%
4th        24 - 19   X  DR  =   1.165:1                                4th    1.000:1 
                                                               )    14.2%     
5th        25 - 17   X  DR  =   1.000:1  

 

Drive Ratio (DR)  17 - 25   1.471:1

Overall Reduction 1st - 5th                    59.7%             Reduction 1st - 4th  43.0%

 

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

 

Price £1450 + VAT (if applicable) & carriage

 

	Nova BSA Goldstar 5 Speed Road/Touring Gearbox

           Conversion Five Speed Road Touring Gearbox

<< back to products

NOTE

A CONVERSION KIT TO THE NOVA 5 SPEED ROAD/TOURING GEARBOX IS AVAILABLE FOR CUSTOMERS WITH THE NOVA 5 SPEED CLOSE RATIO GEARBOX.  THIS SIMPLY COMPRISES AN ALTERNATE LAYSHAFT DRIVE GEAR, SLEEVE GEAR, 1ST LAYSHAFT GEAR & 1ST MAINSHAFT GEAR.

 

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

 

Price £365 + VAT (if applicable) & carriage