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2021–2022 · Retro Classic · Buyer's Guide
Classic Looks, Usable Power
The Street Twin is Triumph's modern classic kept simple: a liquid-cooled 900 cc parallel twin in a steel double-cradle frame, dressed in Bonneville styling. The numbers show where its heart is. Peak power is 64 hp at 7,500 rpm, but the 59 lb-ft of torque peaks at just 3,800 rpm, so this engine is built around low-end pull, not revs. The modern hardware stays quietly in the background. ABS, traction control and ride modes come standard, along with a 41mm KYB cartridge fork, a Brembo four-piston front caliper and a USB charging port. Retro look, current tech. That's the brief.
On paper, this bike is built for real roads at an unhurried pace. A 30.1 in (765 mm) seat, 476 lb (216 kg) wet, a slim profile and neutral ergonomics point to a motorcycle that won't intimidate you. That makes it an easy way in for newer riders. For experienced riders who care more about style and torque than spec-sheet bragging, it's a sensible everyday bike. It's also a canvas. The Street Twin is built for personalization, and Triumph backs that with a wide range of official accessories. Buy it, then make it yours!
Spec sheets don't ride bikes, but they set the baseline.
| Power | 64 hp (48 kW) @ 7,500 rpm |
|---|---|
| Torque | 59 lb-ft (80 Nm) @ 3,800 rpm |
| Displacement | 900 cc |
| Engine | Parallel twin |
| Cooling | Liquid-cooled |
| Gearbox | 5-speed |
| Final drive | Chain |
| Fork | Telescopic |
| Front tire | 100/90-18 |
| Rear tire | 150/70-17 |
| Seat height | 30.1 in (765 mm) |
| Wet weight | 476 lb (216 kg) |
| Fuel capacity | 3.2 gal (12 L) |
Equipment check
Chassis
Comfort
Connectivity
Safety
None of this comes off a brochure. It's the picture that forms when you spend years listening to riders who live with this one: conversations at the track, owners talking through what they've kept and what they'd change, and the messages sent to me directly. For the Street Twin that picture skews positive, with a short list of consistent gripes.
The strongest, most repeated thread is the reworked 900 twin. Owners describe a motor that feels keener through the mid-range and revs out more eagerly than the one it replaced. Close behind, riders praise how the bike is put together, rating paint and metalwork above rivals they cross-shopped. Composed steering and brakes with real bite earn steady approval, and many note how easily it moves between commuting, weekend roads, and light trips away.
The complaints are fewer and tightly grouped. Taller owners report the low seat and mid controls closing in over distance, with slim aftermarket help to reclaim the space. Range is the other note, the tank running dry sooner than big-mile riders would like. A few purists would swap the cast wheels for spokes to suit the classic look, though it isn't offered from the factory.
Alternator wiring connector overheating
The wiring between the alternator and the main harness connector can short-circuit and overheat, risking connector deformation, damage to the motorcycle, and an increased fire or crash risk. Triumph issued NHTSA recall 26V078000, replacing the two-piece connector body with a single in-line crimped connector for the three alternator wires.
Where this Triumph Street Twin 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 Street Twin is actually built for.
The best fit here: Bonneville looks, easy low-end torque and neutral ergonomics made for unhurried miles through small towns. The 3.2 gal (12 L) tank sets a stop-and-look-around rhythm.
Made for Acadia National Park · Austin / Handbuilt Motorcycle Show · Blue Ridge Parkway
A solid match for Hill Country weekends: accessible handling and low-end torque suit twisty back roads. If you want sport-touring pace, know that 64 hp is its honest ceiling.
Made for Austin / Texas Hill Country · Texas Hill Country BDR-X · Twisted Sisters
A partial fit. You get heritage styling and a brand with real history, but this is a slim 900 cc parallel twin, not a cruiser built for big-twin presence on long rally hauls.
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 · 2019–2020
Classic Bones, Real Pull
Compare to the previous model →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 Street Twin. “cheaper/pricier” is what that bike costs second-hand, not how worn it is.
Competitor · 2021–2023
A Hundred Years of Character
Roughly $700 pricier used than this bike at 4 yr
Competitor · 2021–2024
Purist Retro, Italian Soul
About the same used price as this bike at 5 yr
Competitor · 2020–2025
Style First, Always Style
~$500 pricier used than this bike at 4 yr
Competitor · 2015–2021
Fun Chassis, Honest Soul
About the same used price as this bike at 5 yr
Same Platform · 2021
The Purist Bonneville Done Right
~$1,000 pricier used than this bike at 4 yr