2017–2020 · Retro Classic · Buyer's Guide
Retro Soul, Modern Bones
This is the Bonneville in its purest form: a 900 cc liquid-cooled parallel twin in a steel double-cradle frame, wrapped in styling that leans hard on the 1960s. The numbers aren't the point. Peak power is 54 hp at 5,900 rpm, while the full 59 lb-ft is already there at 3,230 rpm, which tells you where this 'High Torque' engine wants to live. The tech list is short and sensible: fuel injection, ABS, traction control and a USB port, all standard. That's the T100's place in its class: classic design up front, modern hardware working underneath. Retro done properly.
On paper, everything points to accessibility. The seat sits at 31.1 in (790 mm), the 100/90-18 front tire and 57.1 in (1,450 mm) wheelbase are proper classic proportions, and the five-speed gearbox keeps things simple. A 3.8 gal (14.5 L) tank points to relaxed stints between small-town stops, not marathon days. The rear suspension takes preload adjustment, and Triumph offers cruise control, heated grips and luggage as options. On top of that, the aftermarket potential is big. This bike is built for you if you want the real classic look with modern hardware underneath. Style plus credibility.
Spec sheets don't ride bikes, but they set the baseline.
| Power | 54 hp (40 kW) @ 5,900 rpm |
|---|---|
| Torque | 59 lb-ft (80 Nm) @ 3,230 rpm |
| Displacement | 900 cc |
| Engine | Parallel twin |
| Cooling | Liquid-cooled |
| Gearbox | 5-speed |
| Final drive | Chain |
| Fork | Telescopic |
| Front brake | 310 mm |
| Front tire | 100/90-18 |
| Rear tire | 150/70-17 |
| Wheelbase | 57.1 in (1450 mm) |
| Seat height | 31.1 in (790 mm) |
| Fuel capacity | 3.8 gal (14.5 L) |
Equipment check
Chassis
Comfort
Connectivity
Safety
Recall 19V133000: ELECTRICAL SYSTEM:WIRING
Triumph Motorcycles America, LTD (Triumph) is recalling certain 2016-2019 Bonneville T120 and Bonneville T120 Black, 2017-2019 Bonneville T100 and T100 Black, 2017-2018 Street Cup and Street Scrambler, and 2016-2018 Street Twin motorcycles. The clutch cable may contact the main harness cover and cause damage to wiring within the main harness. This may lead to a loss of electrical power to various electrical circuits.
Where this Triumph Bonneville T100 pulls ahead of — or falls behind — its rivals on the numbers, and the typical bike in its class on character.
Power
Torque
Displacement
Seat height
Forget spec-sheet bragging. Here's who the Bonneville T100 is actually built for.
This is your best fit here: pure 1960s Bonneville styling, a low 31.1 in seat and a torque-first twin made for historic routes at an easy rhythm. Add the optional luggage and go.
Made for Acadia National Park · Austin / Handbuilt Motorcycle Show · Blue Ridge Parkway
A good match if heritage and identity are what drive you. Just know what you're buying: a purist British classic with a parallel twin, not a chopper-style cruiser or a bagger.
Made for Black Hills / Sturgis Rally Hub · A1A — Florida Atlantic Coast · Daytona Main Street / Bike Week
If you're cross-shopping the older generation, here's what changed.
Previous generation · 2015
Custom Style, Factory Born
Compare to the previous model →The Triumph Bonneville T100 also comes in these variants, models and special editions. Each has its own page covering only what differs from the standard Bonneville T100 — equipment, electronics, specs and used price.
If this one isn't quite the fit, these are the bikes worth riding back-to-back against it.
Any price note compares both bikes at the same age — the youngest age both have on the used market — against this Triumph Bonneville T100. “cheaper/pricier” is what that bike costs second-hand, not how worn it is.
Successor · 2021
The Purist Bonneville Done Right
Successor · 2025
British Style, Unapologetic Purity
Competitor · 2015–2019
Italian Soul, Stone Simple
Roughly $3,400 cheaper used than this bike at 7 yr
Competitor · 2015–2019
Café Soul, Numbered Plate
Roughly $700 pricier used than this bike at 7 yr
Competitor · 2020–2025
Style First, Always Style
Roughly $1,700 cheaper used than this bike at 6 yr
Competitor · 2018
Café Style, Zero Pretense
Roughly $3,300 cheaper used than this bike at 6 yr
Competitor · 2018
Pure Sixties Style, Modern Bones
Roughly $3,700 cheaper used than this bike at 6 yr
