2006–2008 · Retro Classic · Buyer's Guide
The Bonneville Blueprint, Faithfully Executed
The 2006 Bonneville is the sixties silhouette built around hardware that actually works the moment you turn the key. Under the classic tank sits an 865cc air-cooled parallel twin making 67 hp, fed by fuel injection that stays politely out of sight. Nothing here shouts. The lines are clean, the finish reads as real metal at three paces, and the whole machine carries its heritage without faking it. In a class where character is too often props and fake patina, this Triumph earns its look through proportion and genuine build quality rather than nostalgia alone.
On the road it asks for a relaxed rhythm. The torque arrives early, peaking at 3,500 rpm, so you short-shift through the 5-speed box and let the twin lope. It rewards owners who ride for the feel rather than the stopwatch, and the simple, robust layout ages well on light maintenance. The honest caveat: there is no ABS or traction control on this generation, and the electrics have a few weak spots. So it suits a rider who wants a clean, characterful everyday twin and accepts old-school simplicity as part of the bargain.
Spec sheets don't ride bikes, but they set the baseline.
| Power | 67 hp (50 kW) @ 7,400 rpm |
|---|---|
| Torque | 44 lb-ft (60 Nm) @ 3,500 rpm |
| Displacement | 865 cc |
| Engine | Parallel twin |
| Cooling | Air-cooled |
| Gearbox | 5-speed |
| Final drive | Chain |
| Fork | Telescopic |
| Front tire | 100/90-19 |
| Rear tire | 130/80-17 |
| Seat height | 30.5 in (775 mm) |
| Wet weight | 452 lb (205 kg) |
| Fuel capacity | 4.4 gal (16.6 L) |
Swing a leg over and the 30.5-inch seat drops you into a natural, upright stance that leaves most riders flat-footed. At 452 pounds wet it feels light and tidy at walking pace, easy to paddle around and park. Thumb the starter and the air-cooled twin settles into a steady, even beat, a soft thrum you feel through the pegs and bars more than you hear it. There is vibration, but it is the pleasant kind, a reminder that real pistons are working under you rather than a buzz that numbs your hands. The narrow tank and slim midsection make the whole bike feel uncomplicated and honest. Roll along a backroad and the riding position keeps your shoulders loose and your eyes up, the sort of bike you settle into for an afternoon and forget the clock.
Across years of owner emails, messages riders send me directly, and long conversations in the paddock about this Bonneville, the sentiment lands in a consistent place. Most riders fall for the look and the easy character first, then settle in and live happily with a couple of honest shortcomings.
Riders return again and again to the styling, calling it timeless and authentically of its era. They praise how the parallel twin pulls cleanly from low in the rev range, smooth and torquey enough to make everyday riding feel relaxed. And there is near-universal faith in its durability. Owners routinely report the air-cooled motor running strong well past 100,000 miles on basic upkeep, the kind of trust that turns a first Triumph into a long-term keeper.
The most common complaint centers on the front brake. The single disc draws repeated criticism for vague feel and insufficient stopping power, often described as wooden and needing a heavy pull. A smaller but steady chorus mentions the stock seat. Thinly padded and firm, it wears on riders over longer days, and plenty swap in a gel or aftermarket replacement before any serious touring.
Crank position sensor failure
The sensor can fail without warning, causing sudden stalling or a no‑start condition; usually requires dealer diagnosis and replacement.
Fuel pump squeal
Some owners report a high‑pitched whine from the fuel pump upon key‑on; often benign but may indicate early wear.
Water intrusion causing misfire
Heavy rain can allow water to collect around the spark plug boots, leading to rough running or misfires; applying dielectric grease fixes it.
Rectifier/regulator failure
Prone to overheating and failure, particularly on earlier models, leading to charging system problems; reported on the closely related America model.
Cam cover gasket leak
Oil seepage from the cam cover gasket is a common cosmetic issue; an upgraded aftermarket gasket typically resolves it permanently.
Where this Triumph Bonneville pulls ahead of — or falls behind — its rivals on the numbers, and the typical bike in its class on character.
Power
Torque
Displacement
Wet weight
Seat height
Forget spec-sheet bragging. Here's who the Bonneville is actually built for.
This is exactly your bike. The relaxed torque, upright seat, and genuine classic looks suit slow historic routes and small-town stops far better than chasing big miles or pace.
Made for Acadia National Park · Austin / Handbuilt Motorcycle Show · Blue Ridge Parkway
If you ride for the ritual, the sound, and a strong brand identity, the Bonneville delivers the style, but it runs lighter and tamer than the big V-twins that own those rally weekends.
Made for A1A — Florida Atlantic Coast · Black Hills / Sturgis Rally Hub · Daytona Main Street / Bike Week
You can enjoy a Hill Country loop on this twin, but it rewards flow over attack. If your weekends lean sporty and fast, the easy 67 hp will feel calm rather than sharp.
Made for Austin / Texas Hill Country · Twisted Sisters · Austin / Handbuilt Motorcycle Show
If you're cross-shopping the older generation, here's what changed.
Previous generation · 2002–2004
The Real Bonneville Returns
Compare to the previous model →