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BSA Thunderbolt 350

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Make Model

BSA Thunderbolt 350

Year

2026

Engine

Four stroke,  single- cylinder, DOHC, 4 valves, twin spark plugs

Capacity

334 cc / 20.4 cu in
Bore x Stroke 81 x 65 mm

Cooling System

Liquid-cooled

Induction

Fuel injection

Starting

Electric

Max Power

21.3 kW / 29 Hp @ 8000 rpm

Max Torque

29.6 Nm / 21.8 lb-ft @ 5800 rpm

Transmission 

6 Speed

Final Drive

Chain

Frame

Tubular steel dual cradle chassis

Front Suspension

41mm USD telescopic forks

Rear Suspension

Monoshock, preload adjustable

Front Brakes

Single 320mm, 2-piston calliper

Rear Brakes

Single 240mm disc, single caliper

ABS System

3-Mode ABS

Wheels

Wire spoke alloy, front 54 spokes, rear 65 spokes

Front Tyre

90/90-21

Rear Tyre

130/80-17

Wheelbase

1465 mm / 57.7 in

Seat Height

815 mm / 32.1 in

Wet Weight

185 kg / 408 lbs

Fuel Capacity 

15.5 Litres /  US gal
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From a BSA web-site:

BSA is ready to take on the adventure market with the reveal of the new BSA Thunderbolt. The brand’s fourth bike, set to hit the market mid-2026, will thrive on every kind of terrain, from city streets to gravel tracks, through rain, mud, and dust. The modern BSA Thunderbolt is for weekday commutes and weekend adventures, both near and far.

Featuring rugged aesthetics including a rally-style beak and rear rack, the newest model is geared up for full throttle escapades with premium traction control and three ABS modes (Rain, Road, Off-Road). Additionally it offers a preload adjustable mono shock rear suspension, slip and assist clutch, and an upswept exhaust for better water wading capabilities.

When standing on the pegs is the best way to tackle the terrain, the adjustable front windscreen and instrument console ensures no compromises. The low seat height, lightweight design and wide handlebars delivers class-leading manoeuvrability for all riders, with added assurance of high ground clearance, a reinforced bash plate, exoskeleton frame and knuckle guards for protection, if needed.
Promising power and efficiency, the high torque Euro 5+ compliant 334cc liquid-cooled DOHC single cylinder engine, provides compelling performance with a six-speed gearbox and a large fuel tank perfect for longer journeys. Whilst additional space allows for a pillion and luggage – encouraging riders to go further and explore for longer.

Classic Legends was created with the ambition to revive legacy motorcycle brands and bring them back for modern day riders to enjoy. The portfolio currently includes BSA, Jawa and Yezdi – three brands that had a huge influence on motorcycling history, all retaining unique characteristics.

Anupam Thareja, Co-founder of Classic Legends Pvt Ltd, which owns BSA, said:
“This is the best 350 adventure bike in the world. Don’t believe me – just test ride it and prove me wrong. Today we revealed the new BSA Thunderbolt at EICMA, based on our global adventure motorcycle platform. This innovative approach enables our three unique brands – BSA, Jawa and Yezdi – to benefit from a shared platform for greater efficiency across our targeted sales territories without compromising each brand’s distinctive ‘signature’.

Classic Legends recognises the unique DNA of each brand, and we acknowledge our responsibility to ensure this is always respected and honoured.

The BSA ‘signature’ is hugely influenced by the past: the design silhouette, the competitions won, records set and memories made. It is a true motorcycling legend.

Unveiling the new BSA Thunderbolt at EICMA, th biggest international motorcycle show, underscores our intention to bring BSA back to the world stage”.

Boman Irani, Director and Co-founder of Classic Legends Pvt Ltd, which owns BSA, said: “The new BSA Thunderbolt is adventure-ready and engineered to go the distance. Combining dynamic on and off-roading capabilities, unrivalled performance, and effortless usability, our new bike inspires confidence. It’s for riders with a ‘go anywhere and do anything attitude who seek new destinations and want to trust that their motorcycle will not just get them to where they want to go, it will excite every sense along the way.

BSA doesn’t just build motorcycles, it builds legends and the new BSA Thunderbolt proudly carries that legacy forward.”