Gearbox Shafts (Gear Clusters)
MADE IN ENGLAND
CNC Machined, Gear Cut and Shaved to full EN36 Original Spec.
Also see Bearings, Gearbox Sprockets
Triumph and BSA Twins and Triples, 5 Speed Gears
| Ref Number (See Above) | Part # | Description |
| 3 | 57-4779 | Mainshaft high gear |
| 6 | 57-4370 | Gearbox Mainshaft T150/T160/R3/X75 |
| 6 | 57-4432 57-7077 | Gearbox Mainshaft Triumph T140 |
| 8 | 57-4376 | Mainshaft 4th gear |
| 9 | 57-4377 | Mainshaft 3rd gear |
| 11 | 57-4653 | Mainshaft 1st & 2nd Gear |
| 14 | 57-4787 | Layshaft 4th gear |
| 15 | 57-4647 | Layshaft 3rd gear |
| 16 | 57-4657 | Layshaft 2nd gear |
| 18 | 57-4654 | layshaft 1st gear |
| 12 | 57-4900 | Layshaft assy c/w high and 4th gear |
| 12a | 57-4901 | Layshaft bare |
PS170 4 speed Gear Cluster Ass, Wide Ratio to suit 650 Pre Unit and Unit
Many More Available…
Other Gears/Pinions
| Part # | Description | Photo |
| 41-3063 | 24T Mainshaft 3rd Gear (Spinning) BSA B25/B50/TR25W etc. |  |
Gearbox Selector Forks
Many more available.
| Part # | Description |
| 57-1480 | Gearbox Selector Fork, Mainshaft, Triumph 3TA/5TA/T100/TR5T |
| 57-1481 | Gearbox Selector Fork, Layshaft, Triumph 3TA/5TA/T100/TR5T |
| 57-4364 | Gearbox Selector Fork, Mainshaft 4th, Triumph T140/T150/T160 |
| 57-4366 | Gearbox Selector Fork, Layshaft 3rd, Triumph T140/T150/T160 |
| 57-4660 | Gearbox Selector Fork, Layshaft 1st, Triumph T140/T150/T160 |
Cam Plates
Many more available…
| Part # | Description | Photo |
| 40-3038 | Gearbox Camplate – BSA C15/B40 1959-64 | |
| 40-3294 | Gearbox Camplate (Marked T) BSA C15/B40/B25/B44 – 1969 | |
| 57-1066 | Gearbox Camplate – Does not include indicator rod Triumph T15/T20 | |
| 57-1458 | Gearbox Camplate – Triumph T100/5TA/3TA 1959-63 |  |
| 57-1768 | Gearbox Camplate – Triumph T100/5TA/3TA 1963-70 | |
| 57-4026 | Gearbox Camplate – BSA A65 |  |
| 67-3332 | Gearbox Camplate – BSA A7/A10/B31/B33 Goldstar Roadtrim |