BSA Gold Star - Five Speed Road Touring Gearbox

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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.



BSA 5 Speed Road Ratios >
1st 16 - 27 x DR 2.482:1
} 31.8%
} 20.0%
} 13.9%
} 14.2%
2nd 20 - 23 x DR 1.692:1
3rd 25 - 23 x DR 1.353:1
4th 24 - 19 x DR 1.165:1
5th 25 - 17 x DR 1.000:1
 
Overall reduction 1st - 5th 59.7%
BSA RRT2 Standard Ratios >
1st 1.754:1
} 24.4%
} 17.1%
} 9.0%
2nd 1.326:1
3rd 1.099:1
4th 1.000:1
 
Overall reduction 1st - 4th 43.0%

BSA Gold Star - Five speed Touring gearbox

Price £1675.00

+VAT (if applicable) & Carriage

Availability: Call

BSA Gold Star - Conversion Five Speed Road Touring Gearbox
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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



BSA Gold Star - Conversion Five Speed Road Touring Gearbox

Price £365.00

+VAT (if applicable) & Carriage

Availability: Call