BSA Bantam 350 - 2026 Specifications and Reviews

The 2026 BSA Bantam 350 revives BSA's best-selling post-war lightweight as an A2-licence-friendly retro single. Its 334cc liquid-cooled DOHC engine produces 29 hp and 30 Nm of torque through a 6-speed gearbox, with an 800mm seat height and 185kg weight making it an approachable, easy-to-manage entry into classic BSA styling.

2026
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General information

CategoryClassic
Year2026
ModelBSA Bantam 350

Engine and Transmission Specifications

Transmission typeChain   (final drive)
Gearbox6-speed
Torque30.0 Nm (3.1 kgf-m or 22.1 ft.lbs) @ 6000 RPM
Power29.0 HP (21.6 kW) @ 7750 RPM
Cooling systemLiquid
Compression11.0:1
Engine detailsDOHC
Engine typeSingle cylinder, four-stroke
Capacity:334.0 ccm (20.38 cubic inches)
 
 

Physical measures and capacities

Fuel capacity13.00 litres (3.43 US gallons)
Wheelbase1440 mm (56.7 inches)
Seat height800 mm (31.5 inches) If adjustable, lowest setting.
Weight incl. oil, gas, etc185.0 kg (407.9 pounds)

BSA Bantam 350 dimensions and frame

Rear brakesSingle disc. 240 mm. Floating hydraulic caliper.
Front brakesSingle disc. 320 mm. Floating caliper.
Rear tire150/70-R17
Front tire100/90-R18
Rear suspensionTwin shocks, 5-step adjustable preload, 100mm travel
Front suspensionNon-adjustable telescopic forks, 135mm travel

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
StarterElectric

Performance Profile & Rider Fit

29 hp
Peak Power

Best For

Track5%
City70%
Cornering40%
Daily Riding65%
Touring25%
Passenger30%

Rider Profile

Best ForWell suited to A2-licence and newer riders wanting classic BSA styling with gentle, manageable power delivery.
PurposeA lightweight retro commuter built for city riding and short leisure trips rather than performance or touring.
Rider FitLow 800mm seat height and light 185kg weight make it approachable for smaller or less experienced riders.
CharacterA friendly, unhurried single-cylinder retro roadster reviving BSA's best-selling post-war lightweight.
Not Ideal ForNot for highway touring, passengers, or riders wanting more than entry-level performance.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2026 BSA Bantam 350 Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 800mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2026 BSA Bantam 350, with a relaxed knee angle of around 120 degrees and a forward-leaning riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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