Triumph Speed Twin 900 2025 vs. Triumph Bonneville Bobber 2017

Triumph Speed Twin 900 2025

Triumph Bonneville Bobber 2017

Technical Specifications Triumph Speed Twin 900 2025 compared to Triumph Bonneville Bobber 2017

Triumph Speed Twin 900 2025

Triumph Bonneville Bobber 2017

Triumph Speed Twin 900 2025

Triumph Bonneville Bobber 2017

Engine and Drive Train

Engine type	Engine type	In line crankpin offset	Engine type	In line crankpin offset
Stroke	Stroke	80 mm	Stroke	80 mm
Engine power	Engine power	65 HP	Engine power	77 HP
Rpm at Max. Power	Rpm at Max. Power	7,500 rpm	Rpm at Max. Power	6,100 rpm
Torque	Torque	80 Nm	Torque	106 Nm
Rpm at Torque	Rpm at Torque	3,800 rpm	Rpm at Torque	4,000 rpm
Compression Ratio	Compression Ratio	11	Compression Ratio	10
Fuel system	Fuel system	Injection	Fuel system	Injection
Starter	Starter	Electric	Starter	Electric
Clutch Type	Clutch Type	Multiplate in oil-bath	Clutch Type	Multiplate in oil-bath
Transmission	Transmission	Chain	Transmission	Chain
Transmission Type	Transmission Type	Gearshift	Transmission Type	Gearshift
Number of gears	Number of gears	5	Number of gears	6
Cylinders	Cylinders	2	Cylinders	2
Strokes	Strokes	4-Stroke	Strokes	4-Stroke
Valves per cylinder	Valves per cylinder	4	Valves per cylinder	4
Valves	Valves	OHC	Valves	OHC
Cooling	Cooling	liquid	Cooling	liquid
Displacement	Displacement	900 ccm	Displacement	1,200 ccm

Suspension Front

Front suspension	Front suspension	Upside-Down telescopic fork	Front suspension	Telescopic fork
Brand	Brand	Marzocchi	Brand	Kayaba
Diameter	Diameter	43 mm	Diameter	41 mm
Travel	Travel	120 mm	Travel	90 mm

Suspension Rear

Suspension	Suspension	Swing arm	Suspension	Swing arm
Shock absorber	Shock absorber	Dual Shock	Shock absorber	Monoshock
Brand	Brand	Marzocchi	Brand	Kayaba
Travel	Travel	116 mm	Travel	90 mm
Adjustment	Adjustment	Preload	Adjustment	Preload
Material	Material	Steel	Material	Steel

Chassis

Frame	Frame	Steel	Frame	Steel
Frame type	Frame type	Double cradle	Frame type	Double cradle

Brakes Front

Type	Type	Single disk	Type	Single disk
Diameter	Diameter	320 mm	Diameter	310 mm
Piston	Piston	Four pistons	Piston	Double piston
Shock mount	Shock mount	Fixed caliper	Shock mount	Floating caliper

Brakes Rear

Type	Type	Disc	Type	Disc
Diameter	Diameter	255 mm	Diameter	255 mm
Piston	Piston	Double piston	Piston	Double piston
Shock mount	Shock mount	Floating caliper	Shock mount	Floating caliper
Brand	Brand	Nissin	Brand	Nissin

Assistance Systems

Advanced Rider Assistance Systems	Advanced Rider Assistance Systems	ABS, Riding modes, Cornering ABS, Ride by Wire, Traction control	Advanced Rider Assistance Systems	ABS, Riding modes, Traction control

Dimensions and Weights

Front tyre width	Front tyre width	100 mm	Front tyre width	100 mm
Front tyre height	Front tyre height	90 %	Front tyre height	90 %
Front tyre diameter	Front tyre diameter	18 inch	Front tyre diameter	19 inch
Rear tyre width	Rear tyre width	150 mm	Rear tyre width	150 mm
Rear tyre height	Rear tyre height	70 %	Rear tyre height	80 %
Rear tyre diameter	Rear tyre diameter	17 inch	Rear tyre diameter	16 inch
Length	Length	2,090 mm	Length	2,235 mm
Width	Width	780 mm	Width	800 mm
Height	Height	1,115 mm	Height	1,025 mm
Wheelbase	Wheelbase	1,435 mm	Wheelbase	1,510 mm
Seat Height	Seat Height	780 mm	Seat Height	690 mm
License compliancy	License compliancy	A2, A	License compliancy	A

Pros and Cons in comparison

Triumph Speed Twin 900 2025

All in all, the Speed Twin cylinder update is a real treat for modern classic fans who want to combine two worlds: enjoyable cruising with comfort, but also lively cornering with a powerful sound. You get state of the art technology that makes the riding experience even safer and more comfortable. A modern classic bike as it is written in the book.

Bonneville engine

powerful, full sound

agile handling

sleek looks with new features

transmission

optimised suspension elements

seating position and comfortable upholstery

Tyres could use more grip

rear brake too lax