Triumph Bonneville Bobber 2017 vs. Triumph Bonneville Speedmaster 2021

Technical Specifications Triumph Bonneville Bobber 2017 compared to Triumph Bonneville Speedmaster 2021

Triumph Bonneville Bobber 2017

Triumph Bonneville Speedmaster 2021

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Differences

Triumph Bonneville Bobber 2017

Triumph Bonneville Speedmaster 2021

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	77 HP	Engine power	78 HP
Rpm at Max. Power	Rpm at Max. Power	6,100 rpm	Rpm at Max. Power	6,100 rpm
Torque	Torque	106 Nm	Torque	106 Nm
Rpm at Torque	Rpm at Torque	4,000 rpm	Rpm at Torque	4,000 rpm
Compression Ratio	Compression Ratio	10	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	6	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	1,200 ccm	Displacement	1,200 ccm

Suspension Front

Front suspension	Front suspension	Telescopic fork	Front suspension	Telescopic fork
Brand	Brand	Kayaba	Brand	Showa
Diameter	Diameter	41 mm	Diameter	47 mm
Travel	Travel	90 mm	Travel	90 mm

Suspension Rear

Suspension	Suspension	Swing arm	Suspension	Swing arm
Shock absorber	Shock absorber	Monoshock	Shock absorber	Monoshock
Travel	Travel	90 mm	Travel	73 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	Double disk
Diameter	Diameter	310 mm	Diameter	310 mm
Piston	Piston	Double piston	Piston	Double piston
Shock mount	Shock mount	Floating caliper	Shock mount	Floating caliper
Brand	Brand	Nissin	Brand	Brembo

Brakes Rear

Type	Type	Disc	Type	Disc
Diameter	Diameter	255 mm	Diameter	255 mm
Piston	Piston	Double piston	Piston	Single 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, Traction control	Advanced Rider Assistance Systems	ABS

Dimensions and Weights

Front tyre width	Front tyre width	100 mm	Front tyre width	130 mm
Front tyre height	Front tyre height	90 %	Front tyre height	90 %
Front tyre diameter	Front tyre diameter	19 inch	Front tyre diameter	16 inch
Rear tyre width	Rear tyre width	150 mm	Rear tyre width	150 mm
Rear tyre height	Rear tyre height	80 %	Rear tyre height	80 %
Rear tyre diameter	Rear tyre diameter	16 inch	Rear tyre diameter	16 inch
Length	Length	2,235 mm	Length	2,225 mm
Width	Width	800 mm	Width	910 mm
Height	Height	1,025 mm	Height	1,055 mm
Wheelbase	Wheelbase	1,510 mm	Wheelbase	1,500 mm
Seat Height	Seat Height	690 mm	Seat Height	705 mm
License compliancy	License compliancy	A	License compliancy	A