Triumph Street Twin Specs

2016 - 2020 • 2 variants

The Triumph Street Twin is a naked bike produced from 2016 to 2020 across 2 variants. It is powered by a four stroke, 270° crank angle parallel twin, sohc, 4 valves per cylinder. Peak power output is 55 hp. Peak torque is 80 Nm.

About the Triumph Street Twin

Documented here are the full technical specifications for the Triumph Street Twin, a Naked bike motorcycle with a production run from 2016 to 2021. Specification data includes engine type and displacement, maximum power and torque output, transmission details, frame construction, suspension travel front and rear, brake types and rotor dimensions, tyre sizes, and overall weight and dimension figures. Select a year above to view the complete spec sheet for that model year.

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Triumph Street Twin by Year

2020 Triumph Street Twin View specs →

2017 Triumph Street Twin View specs →

Spec Evolution

How key specs changed across production years.

Specification	2017	2018	2020	2021
Frame Type	Tubular steel cradle, twin-sided tubular steel swing-arm	Tubular steel cradle, twin-sided tubular steel swing-arm	Tubular steel cradle	Tubular steel cradle
Seat Height	750 mm / 29.5 in	750 mm / 29.5 in	760 mm / 29.9 in ↑	765 mm / 30.1 in ↑
Displacement	900 cc / 54.9 cu in	900 cc / 54.9 cu in	900 cc / 54.9 cu-in	900 cc / 54.9 cu-in
Dry Weight	198 kg / 437 lbs	198 kg / 437 lbs	198 kg / 436.5 lbs	-
Engine Detail	Four stroke, 270° Crank angle parallel twin, SOHC, 8 valves	Four stroke, 270° Crank angle parallel twin, SOHC, 8 valves	Four stroke, 270° Crank angle parallel twin, SOHC, 4 valves per cylinder	Four stroke, 270° Crank angle parallel twin, SOHC, 4 valves per cylinder
Brakes - Front	Single 310mm disc, Nissin 2 piston floating caliper, ABS	Single 310mm disc, Nissin 2 piston floating caliper, ABS	Single 310mm floating disc Brembo 4 piston fixed caliper	Single 310mm floating disc, Brembo 4 piston fixed axial caliper
Brakes - Rear	Single 255mm disc, Nissin 2 piston floating caliper, ABS	Single 255mm disc, Nissin 2 piston floating caliper, ABS	Single 255mm disc, Nissin 2 piston floating caliper	Single 255mm disc, Nissin 2 piston floating caliper
Fuel Capacity	12 L / 3.2 US gal / 2.7 Imp gal	12 L / 3.2 US gal / 2.7 Imp gal	12 Litres / 3.2 US gal	12 Litres / 3.2 US gal
Suspension - Front	Kayaba 41 mm fork	Kayaba 41 mm fork	41 mm Kayaba fork, non-adjustable with cartridge damping	41 mm Kayaba fork, non-adjustable with cartridge damping
Suspension - Rear	Kayaba twin shocks with adjustable preload	Kayaba twin shocks with adjustable preload	Kayaba twin shocks with adjustable preload	Twin RSUs, with pre-load adjustment
Clutch	Wet, multi-plate, slip-assist	Wet, multi-plate, slip-assist	Wet, multi-plate assist clutch	Wet, multi-plate assist clutch
Final Drive	Chain, X-ring	Chain, X-ring	O ring Chain	O ring Chain
Height	1114 mm / 43.9 in (without mirrors)	1114 mm / 43.9 in (without mirrors)	1114 mm / 43.9 in	1110 mm / 43.7 in ↓
Length	-	-	2090 mm / 82.2 in	2095 mm / 82.5 in ↑
Compression Ratio	10.55:1	10.55:1	11.0:1 ↑	11.0:1
Emissions	-	-	EURO 4	EURO5 ↑
Tyres - Front	100/90-R18	100/90-R18	100/90-18	100/90-18
Width	785 mm / 30.9 in	785 mm / 30.9 in	785 mm / 30.9 in	780 mm / 30.7 in ↓
Tyres - Rear	150/70-R17	150/70-R17	150/70 R17	150/70 R17
Exhaust	Brushed stainless steel, 2 into 2 exhaust system with twin silencers	Brushed stainless steel, 2 into 2 exhaust system with twin silencers	Brushed 2-into-2 exhaust system with twin brushed silencers	Brushed 2-into-2 exhaust system with twin silencers
Wheels - Front	2.75 x 18, Cast aluminium alloy, multi-spoke	2.75 x 18, Cast aluminium alloy, multi-spoke	Cast aluminium alloy multi-spoke, 2.75 x 18 in	Cast aluminium alloy multi-spoke, 2.75 x 18 in
Wheels - Rear	4.25 x 17, Cast aluminium alloy, multi-spoke	4.25 x 17, Cast aluminium alloy, multi-spoke	Cast aluminium alloy multi-spoke, 4.25 x 17 in	Cast aluminium alloy multi-spoke, 4.25 x 17 in
Fuel Induction	Multipoint sequential electronic fuel injection	Multipoint sequential electronic fuel injection	Multipoint sequential electronic fuel injection, ride by wire	Multipoint sequential electronic fuel injection, ride by wire
Swingarm	-	-	Twin-sided, tubular steel	Twin-sided fabrication
Trail	102.4 mm / 4.0 in	102.4 mm / 4.0 in	102.4 mm / 4.03 in	102.4 mm / 4.03 in
Max Power	40.5 kW / 55 hp @ 5900 rpm	40.5 kW / 55 hp @ 5900 rpm	48 kW / 64 hp @ 7500 rpm ↑	47.8 kW / 64.1 hp @ 7500 rpm ↓
Max Torque	80 Nm / 8.16 kgf-m / 59 ft-lb @ 3230 rpm	80 Nm / 8.16 kgf-m / 59 ft-lb @ 3230 rpm	80 Nm / 59 lb-ft @ 3800 rpm	80 Nm / 59 lb-ft @ 3800 rpm

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