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2017 Triumph Bonneville Bobber Overview
The 2017 Triumph Bonneville Bobber is a naked bike motorcycle built around 1198 cc of displacement. Under the tank sits a Four stoke, parallel twin, 270o crank, SOHC engine, a compression ratio of 10.0:1. 2017 Triumph Bonneville Bobber delivers 57.4 kW @ 6550 rpm of peak power and 105 Nm @ 3100 rpm of torque. From a practical standpoint, the 2017 Bonneville Bobber tips the scales at 228 kg, carries a 10.6-litre fuel tank, offers a seat height of 690 mm and spans a 1510 mm wheelbase. Scroll down for the complete 2017 Triumph Bonneville Bobber spec sheet covering every technical detail from suspension travel to tyre sizes.
2017 Triumph Bonneville Bobber compared with other bikes in the Naked bike category
Here is how the 2017 Triumph Bonneville Bobber stacks up against other bikes in the Naked bike category in our database. Each model counts once, using the model year closest to this one, and the comparison covers up to 1666 models.
- Seat height of 690 mm is lower than that of 1300 of the other 1310 bikes in the Naked bike category.
- Only 98 of the other 1665 bikes in the Naked bike category have a larger engine displacement than the 1198 cc of the Bonneville Bobber.
- With 105 Nm, the Bonneville Bobber has the joint 206th highest torque of 1318 bikes in the Naked bike category, 55% above the category average of 67.7 Nm.
- Narrowing the field to the 546 models within five model years of it, the seat height of 690 mm is lower than that of 542 of the other 545.
2017 Bonneville Bobber - Pros & Cons
Strengths
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Strong power output: 2017 Triumph Bonneville Bobber makes 57.4 kW @ 6550 rpm with 105 Nm @ 3100 rpm of torque - competitive figures for its class.
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Fuel injection: The Multipoint sequential electronic fuel injection system delivers crisp throttle response and reliable cold starts regardless of altitude or temperature.
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Strong front braking: The disc front brake gives excellent stopping power and responds well to aftermarket braided lines.
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ABS fitted: Anti-lock braking is standard, adding a real margin of safety on wet roads or in an emergency stop.
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Accessible seat height: At 690 mm, the seat height is approachable for a wide range of rider heights and builds confidence in low-speed manoeuvring.
Considerations
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Modest fuel capacity: The 10.6-litre tank means more frequent fuel stops on longer rides, which is worth planning around on touring routes.
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Chain final drive upkeep: Chain final drive needs regular cleaning, lubrication and tension checks to get full life out of the sprockets.
Wear Points & Servicing Notes
Cooling system servicing
The Liquid cooled system on the Bonneville Bobber needs a coolant change roughly every two years (or per the service schedule) - skipping it lets the coolant turn acidic and corrode the aluminium water passages over time.
Fuelling & injector care
Fuelling comes from Multipoint sequential electronic fuel injection. Systems like this are largely maintenance-free beyond keeping fuel quality decent and injectors clear - a fuel-system cleaner every service interval is cheap insurance.
Brake disc and pad wear
The disc front brake gives strong, progressive stopping power. Disc thickness and pad depth are worth checking at every tyre change, since worn pads can score the disc surface.
Suspension condition on used examples
Up front, the Bonneville Bobber runs Kayaba 41 mm forks and Kayaba twin shocks with adjustable preload at the rear. On a used example, check fork seals for weeping oil and test the rear linkage for play - seals are a relatively cheap fix but useful when negotiating price.
Final drive maintenance
Final drive is by chain - expect to clean and lube it every few hundred kilometres and check tension regularly; a neglected chain wears the sprockets faster than the chain itself.
Frame & chassis check
The frame is Dual tubular steel cradle - worth a visual check for corrosion or impact damage around the head-stock and swingarm pivot on any used example, since frame damage is far costlier to fix than any service item.
Handling the weight at a standstill
At 228 kg, the Bonneville Bobber is a substantial machine - low-speed manoeuvring in car parks takes more physical effort than on a lighter bike, though the weight disappears once rolling.
Bonneville Bobber - Buying & Maintenance Guide
What to check before buying
When inspecting a used 2017 Triumph Bonneville Bobber with its 1198 cc naked bike, start with the basics: check the service book for oil change frequency, inspect the drivetrain for wear, and look for oil seepage around the engine casings and rocker covers. This model runs chain final drive, so check chain slack and sprocket tooth profile specifically - a worn sprocket is a cheaper fix now than after it's chewed up the next chain. Now 9 years old, this naked bike is as likely to show age-related wear (perished rubber, seized fasteners, degraded seals) as mileage-related wear. A cold start test is invaluable - a well-maintained Bonneville Bobber should fire up cleanly and settle to a smooth idle within a few seconds.
Oil and filter changes
Regular oil changes are the single most important maintenance task for the Bonneville Bobber's 1198 cc four stoke, parallel twin, 270o crank, sohc. Stick to the manufacturer's interval - typically every 6,000 km or once a year, whichever comes first. With a 10.0:1 compression ratio, running the octane grade specified in the manual matters more than on a lower-compression engine. Always use the correct viscosity grade as specified in the owner's manual.
Fuel system care
The Bonneville Bobber's fuel injection system is durable but benefits from quality fuel and the occasional use of a fuel-system cleaner additive. If the bike has been stored for more than three months, drain and replace the fuel to prevent varnish deposits in the injectors.
2017 Triumph Bonneville Bobber - Frequently Asked Questions
What engine does the 2017 Triumph Bonneville Bobber have?
The 2017 Triumph Bonneville Bobber uses a Four stoke, parallel twin, 270o crank, SOHC engine with 1198 cc of displacement. It is liquid cooled.
How much does the 2017 Triumph Bonneville Bobber weigh?
The 2017 Triumph Bonneville Bobber weighs 228 kg. This is the manufacturer's dry figure.
How much power does the 2017 Triumph Bonneville Bobber make?
The 2017 Triumph Bonneville Bobber produces 57.4 kW @ 6550 rpm of power and 105 Nm @ 3100 rpm of torque. These are peak figures.
What is the fuel tank capacity of the 2017 Triumph Bonneville Bobber?
The 2017 Triumph Bonneville Bobber has a 10.6-litre fuel tank. At around 5-6 litres per 100 km, that is roughly 176-211 km between stops.
Is the 2017 Triumph Bonneville Bobber suitable for shorter riders?
The 2017 Triumph Bonneville Bobber has a seat height of 690 mm. This is a comfortable, accessible height for most riders.
What brakes does the 2017 Triumph Bonneville Bobber have?
The 2017 Triumph Bonneville Bobber uses single 310 mm disc, 2 piston floating Nissen calipers, ABS at the front and single 255 mm disc, 2 piston floating Nissen caliper, ABS at the rear.
What tyre sizes does the 2017 Triumph Bonneville Bobber use?
The 2017 Triumph Bonneville Bobber runs 100/90-19 front and 150/80-16 rear tyres. A good selection of sport, touring and all-weather rubber is available in these sizes.
What gearbox does the 2017 Triumph Bonneville Bobber have?
The 2017 Triumph Bonneville Bobber is fitted with a 6-Speed transmission.
Triumph Bonneville Bobber Spec Evolution
The Triumph Bonneville Bobber was produced across 4 model years (2018-2026). The table below highlights the key specifications that changed across the production run - useful whether you are comparing years or tracking down a specific variant.
| Specification |
2018 |
2020 |
2021 |
2026 |
| Max Power |
57.4 kW / 77 hp @ 6550 rpm |
57.4 kW / 77 hp @ 6550 rpm |
57.5 kW / 76.9 hp @ 6100 rpm |
57.5 kW / 76.9 hp @ 6100 rpm |
| Engine Detail |
Four stoke, parallel twin, 270o crank, SOHC |
Four stoke, parallel twin, 270o crank, SOHC |
Four stoke, parallel twin, 270° crank angle, SOHC, 4 valve per cylinder |
Four stoke, parallel twin, 270° crank angle, SOHC, 4 valve per cylinder |
| Seat Height |
690 mm / 27.2 in |
690 mm / 27.2 in |
690 - 700 mm / 27.2 - 27.6 in |
683 mm / 26.9 in |
| Fuel Capacity |
10.6 Litres / 2.8 US gal / 3.2 Imp gal |
10.6 Litres / 2.8 US gal / 3.2 Imp gal |
12 Litres / 3.2 US gal |
14 Litres / 3.7 US gal |
| Frame Type |
Dual tubular steel cradle |
Dual tubular steel cradle |
Tubular steel, twin cradle frame |
Tubular steel, twin cradle frame |
| Wheelbase |
1510 mm / 59.4 in |
1510 mm / 59.4 in |
1500 mm / 59.1 in |
1486 mm / 58.5 in |
| Brakes - Front |
Single 310 mm disc, 2 piston floating Nissen calipers, ABS |
Single 310 mm disc, 2 piston floating Nissen calipers, ABS |
2x 310mm disc, Brembo 2-piston sliding axial calipers |
2x 310mm disc, Brembo 2-piston sliding axial calipers |
| Brakes - Rear |
Single 255 mm disc, 2 piston floating Nissen caliper, ABS |
Single 255 mm disc, 2 piston floating Nissen caliper, ABS |
Single 255mm disc, Nissin single piston sliding axial caliper |
Single 255mm disc, Nissin single piston sliding axial caliper OCABS |
Key Specifications
Engine
Four stoke, parallel twin, 270o crank, SOHC
Power
57.4 kW / 77 hp @ 6550 rpm
Torque
105 Nm / 10.7 kgf-m / 77.4 lb-ft @ 3100 rpm
Weight
228.0 kg / 502.7 lbs
Fuel Capacity
10.6 Litres / 2.8 US gal / 3.2 Imp gal
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Full 2017 Triumph Bonneville Bobber Specifications
Year
2017 - 18
Make Model
Triumph Bonneville Bobber
Seat Height
690 mm / 27.2 in
Wheelbase
1510 mm / 59.4 in
Height
1025 mm / 40.4 in
Length
2235 mm / 87.9 in
Width
800 mm / 31.5 in
Dry Weight
228.0 kg / 502.7 lbs
Fuel Capacity
10.6 Litres / 2.8 US gal / 3.2 Imp gal
Displacement
1198 cc / 73.1 cu in
Engine Detail
Four stoke, parallel twin, 270o crank, SOHC
Bore x Stroke
97.6 x 80 mm
Compression Ratio
10.0:1
Cooling System
Liquid cooled
Exhaust
Straight line stainless steel twin-skin slash cut twin stubby silencers
Fuel Induction
Multipoint sequential electronic fuel injection
Ignition
Digital
Lubrication
Wet sump
Clutch
Wet, multi-plate
Final Drive
Chain, X-ring
Transmission / Drive
6-Speed
Frame Type
Dual tubular steel cradle
Suspension - Front
Kayaba 41 mm forks
Suspension - Rear
Kayaba twin shocks with adjustable preload
Rake
25.8°
Trail
87.0 mm / 3.4 in
Wheel Travel - Front
120 mm / 4.7 in
Wheel Travel - Rear
120 mm / 4.7 in
Brakes - Front
Single 310 mm disc, 2 piston floating Nissen calipers, ABS
Brakes - Rear
Single 255 mm disc, 2 piston floating Nissen caliper, ABS
Tyres - Front
100/90-19
Tyres - Rear
150/80-16
Wheels
Wire 32-spoke, steel rims
Specifications are compiled from manufacturer documentation and cross-referenced
technical sources, and corrected on an ongoing basis.
Spot an error? Let us know.
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