Triumph Bonneville T4 & T40 Specifications

The Triumph Bonneville T4 and Bonneville T40 combine classic Bonneville styling with modern 350cc performance, accessible ergonomics and contemporary rider technology. The following table lists the specifications published on the official Triumph Motorcycles India pages.

Specification	Triumph Bonneville T4	Triumph Bonneville T40
Engine type	Liquid-cooled, single-cylinder, 4 valve, DOHC	Liquid-cooled, single-cylinder, 4 valve, DOHC
Capacity	350 cc	350 cc
Bore	89 mm	89.0 mm
Stroke	56.1 mm	56.1 mm
Compression ratio	12:1:1	12.1:1
Maximum power	29 PS / 29.1 bhp (21.3 kW) @ 7,000 rpm	29 PS / 29.1 bhp (21.3 kW) @ 7,000 rpm
Maximum torque	31.2 Nm @ 5,500 rpm	31.2 Nm @ 5,500 rpm
Fuel system	Bosch electronic fuel injection with electronic throttle control	Bosch electronic fuel injection with electronic throttle control
Exhaust	Stainless twin-skin header system with stainless steel silencer	Stainless twin-skin header system with stainless steel silencer
Final drive	X-ring chain	X-ring chain
Clutch	Wet, multi-plate, slip & assist	Wet, multi-plate, slip & assist
Gearbox	6-speed	6-speed
Frame	Hybrid spine/perimeter, tubular steel	Hybrid spine/perimeter, tubular steel
Swingarm	Twin-sided, steel	Twin-sided, steel
Front wheel	Spoked, aluminium rim, tubed, 18 x 2.75 in	Spoked, aluminium rim, tubed, 18 x 2.75 in
Rear wheel	Spoked aluminium rim, tubed, 17 x 4.25 in	Spoked aluminium rim, tubed, 17 x 4.25 in
Front tyre	100/90-18	100/90-18
Rear tyre	140/70 R17	150/70 R17
Front suspension	43 mm forks; 130 mm wheel travel	43 mm forks; 130 mm wheel travel
Rear suspension	Twin shock with preload adjustment; 130 mm wheel travel	Twin shock with preload adjustment; 130 mm wheel travel
Front brake	Single 310 mm fixed disc, twin-piston axial caliper, ABS	Single 310 mm fixed disc, twin-piston axial caliper, OCABS
Rear brake	Single 255 mm fixed disc, single-piston floating caliper, ABS	Single 255 mm fixed disc, single-piston floating caliper, OCABS
Instrument display	4-inch circular, bonded, colour LCD screen with turn-by-turn navigation	4-inch circular, bonded, full-colour TFT screen with Triumph Navigation
Handlebar width	818 mm	818 mm
Height without mirrors	1,081 mm	1,081 mm
Seat height	790 mm	790 mm
Wheelbase	1,418 mm	1,418 mm
Rake	25.4º	25.4°
Wet weight	195 kg	195 kg
Fuel capacity	14.5 L	14.5 litres
Fuel consumption	Not specified	3.7 l/100 km
CO₂ standard	EURO 5+; data measured according to Regulation 168/2013/EC	EURO 5+; data measured according to Regulation 168/2013/EC
Service interval	12 months or 10,000 miles (16,000 km), whichever comes first	10,000 miles (16,000 km) or 12 months, whichever comes first

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