Finally a viable 4 speed competition option to the old BSA unit single gearbox.
All designed and manufactured in house.
Using our splined mainshaft to go with our clutches for optimum performance.
This gearbox is for BSA B44 and B25 (longer splines for kickstart)
Under part number A100 is this gearbox but for BSA B50 (shorter splines for kickstart)
| 1st gear | 15 | 20 | 1.905 |
| 2nd Gear | 18 | 17 | 1.349 |
| 3rd Gear | 19 | 15 | 1.128 |
| Top Gear | 20 | 14 | 1.000 |
PES BSA B44 B25 4 Speed Race Gearbox Needle Bearing Gears A100A
Add to Order
Click any of the line items below to add them to your order.
| Part No. | Description | Price | Units | Qty Req. |
|---|---|---|---|---|
| A100A | PES BSA B44 B25 4 SPEED RACE GEARBOX NEEDLE BEARING GEARS A100A | £1400.00 | EACH | 1 |
