| MODEL | BSA S29 DIRT TRACK SPEEDWAY 500 1929 |
| Year | 1929 |
| Engine Type | Single-cylinder four-stroke overhead-valve, twin-port head |
| Displacement / Capacity | — |
| Bore X Stroke | 80 mm x 98 mm |
| Compression Ratio | — |
| Cooling System | — |
| Max Power | — |
| Max Torque | — |
| Ignition | — |
| Induction | — |
| Start System | — |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | Standard BSA box, direct drive with 8.55:1 gearing and 50-tooth rear sprocket |
| Clutch | Standard BSA component |
| Final Drive | — |
| CHASSIS SPECS | |
| Frame | Revised shorter-wheelbase frame |
| Front Suspension | Short-link forks with a single heavy spring |
| Rear Suspension | — |
| Front Brakes | — |
| Rear Brakes | — |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | — |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | — |
| Rear Tyre | — |
| FUEL SYSTEM | |
| Fuel Capacity | — |
| Fuel Consumption | — |
| Top Speed | — |
The S29 Dirt Track was BSA's first speedway bike, built on the Jack Parker design for the first League season in 1929. It used the sloper engine in a short frame with open exhausts and a canister air cleaner on the carburettor.
