The Triumph Bonneville T40 and T40 Black share the same listed engine output and core equipment; the clearest difference is their finish. Triumph specifies a 398 cc single-cylinder engine producing 30 bhp at 7,000 rpm and 36 Nm at 5,000 rpm for both. The T40 has brighter paint and lighter metal finishes, while the T40 Black uses darker trim and a brown bench seat. The specifications below are manufacturer-published, not independent road-test findings.
Triumph Bonneville T40 specifications
Triumph’s US-facing product pages list the following shared engine output and equipment for the T40 and T40 Black. Detailed chassis and dimension figures below are from the T40 Black specification page, so they should not be assumed to describe every market configuration.
| Specification | Triumph listing |
|---|---|
| Engine | Liquid-cooled, single-cylinder, 4-valve DOHC TR-Series; 398 cc |
| Bore × stroke | 89 × 64 mm |
| Compression ratio | 12:1 |
| Maximum power | 30 bhp (22.8 kW; 32 PS) at 7,000 rpm |
| Peak torque | 36 Nm (26.6 lb-ft) at 5,000 rpm |
| Fuel system | Bosch electronic fuel injection with electronic throttle control |
| Transmission and final drive | Six-speed gearbox; X-ring chain |
| Clutch | Hydraulic wet multi-plate slip-and-assist clutch |
| Frame and swingarm | Hybrid spine/perimeter tubular steel frame; steel twin-sided swingarm |
| Front and rear suspension | Telescopic forks, 5.1 in travel; twin preload-adjustable shocks, 5.1 in travel |
| Brakes | Single discs front and rear; Optimized Cornering ABS listed |
| Wheels and tires | Spoked wheels with aluminum rims and tubed tires; 18 × 2.75 in front, 17 × 4.25 in rear rims; 100/90-18 front and 150/70 R17 rear tires |
| Dimensions (T40 Black page) | 818 mm width; 1,081 mm height; 1,418 mm wheelbase; 25.4° rake; 11.4 mm trail |
| Seat height (T40 Black page) | 790 mm (31.1 in) |
| Wet weight and fuel capacity (T40 Black page) | 421.1 lb wet; 3.8 US gal |
| Fuel consumption and emissions (T40 Black page) | 3.5 L/100 km; Euro 5+ |
Triumph says its fuel-consumption figure comes from specified test conditions and may not reflect real-world results. These values are maker specifications; they do not establish acceleration, handling, or actual economy in everyday riding.
Equipment and riding features
Modes, ABS and traction control
Triumph lists five riding modes: Road, Rain, Eco, Rider A and Rider B. The two Rider modes are customizable. According to the product page, modes adjust throttle response, traction control and ABS. The listed systems include lean-sensitive Optimized Cornering ABS and Optimized Cornering Traction Control; their inclusion is an equipment specification, not proof of a particular safety outcome.
#1 Best Overall
- Package: 2pcs. Color: Black. Size: 2.89" x 0.64" (L x W). Thread Pitch: 1mm. Thread Diameter: 0.22". Fitment: Fit for TRIUMPH Bonneville SE 2009-2013, for TRIUMPH Bonneville T100 2001-2015, for TRIUMPH Scrambler 865 2006-2015, for TRIUMPH Thruxton 865 2004-2015.
- Top Material: Made from high-quality aluminum alloy for extra strength and longevity. Sleek design enhances your motorcycle's appearance with a unique touch.
- Use: Makes seat removal quick and tool-free, allowing easy access to the battery and other components under the seat. Great replacement accessories for your lost bolts.
- Great Design: These bolts have a knurled head for easy hand tightening without tools. The long, threaded body keeps the seat secure while allowing quick removal.
- Note: Please verify your vehicle model before buying to ensure a great fit. You can use a hex wrench if you need to tighten it or remove it more easily (if necessary).
Controls, display and convenience
- A circular 4-inch full-color TFT display.
- Triumph Navigation, plus phone and music control through the Triumph Navigation app.
- Cruise control.
- USB-C charging.
- Full LED lighting, self-canceling indicators and an emergency deceleration warning.
So, yes: Triumph lists cruise control on the T40 and T40 Black product pages. Confirm the specification for the precise model year and market with a local dealer.
How the T40 and T40 Black differ
Triumph presents these as styling variants with the same headline engine performance and feature package on the reviewed pages; those pages do not establish a performance difference.
Rank #2
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| Detail | Bonneville T40 | Bonneville T40 Black |
|---|---|---|
| Paint and tank treatment | Brighter orange-and-white scheme | Matte Pewter Grey and Matte Phantom Black, with a hand-painted silver coachline |
| Metal and engine finishes | Brushed or chrome-finished components, including grab hoop, mirrors, heel guards and brushed steel exhaust | Black exhaust, powder-coated engine casings and blacked-out cooling fins |
| Other trim details | Lighter overall finish | Black aluminum wheel rims with bright spokes, rubber knee pads and brown bench seat |
Triumph describes the engine as having a new cylinder head and dedicated Bonneville tune, saying it offers “distinct engine character and performance.” That is manufacturer wording, not an independent assessment.
Fit, service and ownership details
Triumph lists a 10,000-mile service interval for both models. This is the manufacturer’s stated interval, not evidence of service cost or reliability. The T40 Black page also specifies a standard center stand, which can hold the motorcycle upright and may help with chain cleaning and maintenance. Follow the owner’s manual or consult a dealer for maintenance procedures and compatible products.
Rank #3
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For the T40 Black, Triumph lists a 790 mm (31.1 in) seat height and 421.1 lb wet weight. Triumph says its optional low seat reduces seat height by 0.8 in, to 30.3 in. Other named accessories include heated grips, a comfort seat, passenger backrest, radiator cover, aluminum sump guard, engine bars and luggage. Check fitment and availability with an authorized dealer before choosing accessories.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Price and availability
The reviewed US-facing T40 Black page says “Price coming soon.” The product pages do not establish local pricing or delivery timing. Ask a local Triumph dealer for current prices, availability and market-specific specifications.
Quick Recap
Best Value
- Comprehensive troubleshooting and fault-finding guides to quickly diagnose problems and reduce costly downtime.
Rank #4
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Sources
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
