2002–2004 · Retro Classic · Buyer's Guide
The Real Bonneville Returns
The T100 brings the Bonneville name back with an air-cooled 790cc parallel twin fed by twin carburetors, a 360-degree crank giving that even, thumping beat riders remember from the old British verticals. It makes 61 hp and 44 lb-ft, and none of it comes wrapped in bulky radiators or plastic. A simple steel frame, telescopic fork, twin shocks, and wire-spoked wheels do the work. This is the design that scores a flat 10 on retro for a reason. The styling isn't a costume over modern hardware. It reads as the genuine article from every angle.
It rides easy and neutral, with a low 30.5 in seat and light 100/90-19 front that make it approachable for a first big bike or a tenth. The reward here is character and honesty, not speed. Chrome, paint, and detail hold up when you look close, and running costs stay low. Just go in knowing what it is. Carbureted and 5-speed, it wants a rider who values feel over feature lists. If you need modern rider aids or a rush of top-end, this bike will feel too calm and too old-school for you.
Spec sheets don't ride bikes, but they set the baseline.
| Power | 61 hp (46 kW) |
|---|---|
| Torque | 44 lb-ft (60 Nm) |
| Displacement | 790 cc |
| Engine | Parallel twin |
| Cooling | Air-cooled |
| Gearbox | 5-speed |
| Front tire | 100/90-19 |
| Rear tire | 130/80-17 |
| Seat height | 30.5 in (775 mm) |
| Dry weight | 452 lb (205 kg) |
| Fuel capacity | 4.2 gal (16 L) |
Thumb the choke on a cold morning and the twin settles into a loping, mechanical idle you feel through the pegs and bars before you ever pull away. The vibration is honest and low-frequency, present but never numbing, and it fades into a steady hum once you're rolling. Ergonomics are upright and roomy, an old-fashioned sit-in-the-bike posture that keeps your wrists relaxed and your back straight through town. The narrow tank sits well between your knees, the switchgear is plain and within easy reach, and the 452 lb feels planted rather than heavy at a stop. At real road pace the bike breathes with you, unhurried, the seat and controls asking nothing you have to fight. It's the kind of machine that makes a two-hour back-road loop feel like fifteen minutes.
What follows isn't my own test loop. It's two decades of listening to the people who actually own these bikes: paddock conversations, long owner chats, and the steady stream of messages that lands in my inbox. On the early T100 the chatter settles into a clear pattern. Riders describe a machine that simply keeps running and handles better than its looks let on, with only a couple of gripes that come up again and again.
The loudest, most-repeated praise is durability. Riders describe the air-cooled twin as over-built, piling on high mileage with little more than basic upkeep. Close behind sits the way it steers. Owners say it feels light and narrow beneath them, with cornering that stays poised and predictable and builds genuine confidence once the road starts to turn.
The gripes are few and consistent. The front brake draws the most attention, riders wanting a firmer squeeze from the single disc before it hauls things down with real authority. The other recurring note is looking after the finish: leave the chrome and paint unattended and owners report pitting and corrosion starting to creep in.
Starter Idler Gear Boss Failure
A boss in the crankcases where the starter idler gear mounts can fail, requiring major engine repair. Design was updated in 2006.
Electrical Issues (Coil Pack Failure)
Older bikes may experience coil pack failures and electrical sensor issues, often due to corroded connectors and dodgy grounds.
Rear Spoke Breakage
Spokes on the rear wheel can break, potentially causing a puncture. The design was later revised. Some owners recommend zip-tying the spokes as a precaution.
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.
Forget spec-sheet bragging. Here's who the Bonneville T100 is actually built for.
If your ideal weekend is a small-town route at a calm rhythm on something that looks the part, the T100 is built for exactly that. Its easy manners and honest classic style fit the miles you want to ride.
Made for Acadia National Park · Austin / Handbuilt Motorcycle Show · Blue Ridge Parkway
You'll get the sound, the ritual, and the character, and the T100 turns heads with genuine heritage looks. Just know it's a light retro twin, not a big-inch cruiser, so temper the low-end grunt you may expect.
Made for A1A — Florida Atlantic Coast · Black Hills / Sturgis Rally Hub · Daytona Main Street / Bike Week
For relaxed Hill Country loops and a BBQ stop, the T100's neutral handling and low seat make it a friendly companion. If you want sharp, sporty pace through the twisties, this one asks you to slow down and enjoy it.
Made for Austin / Texas Hill Country · Twisted Sisters · Austin / Handbuilt Motorcycle Show
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.
