Triumph Street Triple 675 (MY2007) — Naked Bike
NastyNils / Triumph press archive

2007–2012 · Naked Bike · Buyer's Guide

Street Triple 675 (MY2007)

Triple Soul, Razor Handling

The Machine's Character

The Street Triple 675 takes its chassis platform straight off the Daytona 675 supersport and strips away the fairing and the racetrack riding position. What is left is a 675 cc inline-three making 106 hp, wrapped in an aluminum frame that weighs almost nothing on the road. In a middleweight naked class then built around inline-fours, the triple lands somewhere else entirely: a torque-rich band that pulls from low down and a three-cylinder voice that gives the whole bike a sense of occasion most machines this size never reach.

On the road it rides light and accessible, the kind of bike that builds confidence quickly and keeps rewarding you the longer you own it. The suspension is tuned for public roads rather than the track, and for what this bike is meant to do that calibration is exactly right. It suits a wide spread of riders, including shorter ones, thanks to a lower seat and closer bars. The one honest caveat: the stock tires are excellent in the dry and a genuine liability in the wet, so anyone riding mixed conditions should plan to swap them.

Hard Numbers

Spec sheets don't ride bikes, but they set the baseline.

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Key specifications
Power 106 hp (79 kW) @ 11,750 rpm
Torque 50 lb-ft (68 Nm) @ 9,100 rpm
Displacement 675 cc
Engine Inline-three
Cooling Liquid-cooled
Gearbox 6-speed
Final drive Chain
Fork Upside-down (USD)
Front brake 308 mm
Front tire 120/70 ZR17
Rear tire 180/55 ZR17
Wheelbase 55.5 in (1410 mm)
Seat height 31.5 in (800 mm)
Wet weight 401 lb (182 kg)
Fuel capacity 4.6 gal (17.4 L)
Top speed 143 mph (230 km/h)
Fuel economy 46 mpg (US)

Equipment check

Chassis

  • Rear Suspension Adjustable Standard

The Voice of Experience

Portrait of NastyNils

The test ride

Throw a leg over and the first thing that lands is the riding position. The lower seat and the bars pulled in close give you a stance that fits you rather than fighting you. Push the bike around a parking spot and the lack of weight is immediately obvious, since it simply does not resist you at walking pace. Out on a tight mountain road, one input on the bar is enough to set the line, and the bike rotates underneath you with no second-guessing. Then there is the noise. At idle, hard on the gas, and right off a closed throttle, the three-cylinder exhaust sends a real shiver up your back. The steering snaps through so fast the bike feels almost moped-light, right up until you open it up and remember what you are sitting on.

Rated point by point — where it earns its keep

My own 0–100 score for this bike against the class, area by area — the marker on each bar is the class average.

I judged this on a road that was almost nothing but tight switchbacks, and it never once made me fight for a line. One input on the bar and it carves through, holds steady, drives out clean. The fork and shock are dialed for public roads, and there they ask for no apology. My one real flag is the stock Dunlops. They're superb in the dry, but I watched the Triumph guide demonstrating the bike break into a full two-wheel slide on a damp stretch, so plan to replace them if you ride mixed weather.

What this bike pulls off is a clean contradiction. It turns like it weighs nothing, then lays down performance that has no business coming from something this easy to flick. You aim it with your fingertips, crack the throttle, and the response arrives like a far bigger machine answering. There's also a richness to the whole package, in the way it sounds and rides and looks together, that reads as more special than its displacement suggests. No spec sheet captures that quality, but the road makes it obvious within minutes.

These brakes win you over by being predictable. Pull the lever and the bite grows in step with your hand, with none of the sudden grab that makes a rider back off, and that's exactly what lets a cautious one lean on them. Triumph saved money by leaving the calipers conventionally mounted rather than fitting radial-mount hardware, and I spent the ride hunting for the downside that decision costs you. At the pace this bike actually sees, I never managed to find it.

The part I keep coming back to is how the power shows up. Triumph leaned the cam profile toward low and mid pull, so instead of a clean ramp the motor gathers in hard pulses as the revs rise, each one bigger than the last, and the top end keeps piling on once you wind it out. Then there's the voice. They reshaped the header and silencer to chase exactly this note, and at idle, hard on the gas, or rolling off the throttle, it lands every single time.

Comfort here comes down to a riding position friendlier than the bike's racetrack bloodline would have you guess. The seat sits lower and the bars are pulled back nearer to you, so you settle into a relaxed, upright stance instead of stretching out over the tank. Riders with a shorter reach gain the most from it, women included, and you can tell that fit was a design goal rather than an accident. It welcomes a far broader set of bodies than the heritage implies.

Day to day, the lightness is what earns its keep. Wheel it around a tight parking spot and the weight you aren't carrying is obvious right away. It never leans on you when you're nudging it backward into a space or swinging it around, and that low effort at slow speed counts for more than people expect. A bike this painless to move before you've even started it quietly tips the math toward going for the ride instead of leaving it parked.

A winding asphalt road descending through the Appalachian Mountains, likely the famous Tail of the Dragon section in Tennessee and North Carolina. Multiple technical right-hand and left-hand curves are visible in this aerial perspective, surrounded by deciduous forest in spring foliage. Clear sunny conditions, well-maintained asphalt with yellow center lines marking the curves.
Mark Stebnicki / Pexels

The Truth on the Street

This section isn't a road test of mine. It's the collective read I've built up over years of listening to riders themselves: questions raised in owner discussions, talk traded around the paddock between track sessions, and the notes that land in my inbox from people living with the bike. Gather all of it and one clear shape emerges for the Street Triple 675. People fall for its character first, then learn to work around a short list of spec gaps.

The Praise That Repeats

Ask owners what they love and the engine answers first. The three-cylinder pull and the note off the twin silencers come up far more than any figure on a spec sheet, and plenty of riders name that sound alone as the reason they signed. Right behind it sits the way the bike steers: light, easy to place, a front end that builds trust quickly. Shorter riders single out the seat height and the close bar reach as a real fit rather than a compromise, and they say it suits a wide range of body types. Those who stepped up to the R variant point to its four-piston front brakes as a genuine move beyond the Base setup, with the adjustable rear counted as worth the small premium. Value-minded buyers keep noting how much Daytona-derived chassis they got here for noticeably less than the supersport sibling.

Where The Complaints Cluster

The gripes group just as tightly. The loudest by far is the mirrors: held at sustained highway revs they blur from engine vibration, and rear visibility falls off. Close behind is a snatchy throttle down low, a stumble that shows up roughly between 4,000 and 6,000 rpm and gets traced to a lean factory fueling map. Many riders also flag that ABS was never offered on any year of this generation, so it simply isn't available on this bike. A couple of practical gaps round things out. There's no fuel gauge, only a low-fuel light, and as a fully naked machine it gives little protection from the wind once you push past about 70 mph. Base owners add one more: a front fork that carries no rider adjustment.

Known issues

  • Kokusan regulator/rectifier overheating and failure

    electricsvery commonRecall

    The factory-fit Kokusan regulator/rectifier overheats and fails, leading to undercharge or overcharge of the battery, dimming dashboard illumination, stalling and progressive damage to the wiring harness and stator. Triumph issued a global recall in 2012 to replace the Kokusan unit with a Shindengen FH012 MOSFET-type unit. Failures continued to be reported on units outside the recall VIN scope (notably MY2010–2011 US-market bikes that were not covered by the NHTSA campaign despite carrying the same Kokusan part).

  • Needle roller bearings in rear linkage seize from inadequate grease intervals

    suspensioncommon

    The needle roller bearings in the rear suspension linkage corrode and seize because the factory-recommended grease interval (12,000 mi / 20,000 km) is too long for typical use, particularly in salt-belt regions where bearings can be destroyed before scheduled service. Multiple sources additionally report that the Base model's rear shock damping degrades noticeably between 10,000 and 20,000 mi.

  • Stator winding insulation breakdown

    electricscommon

    The stator can fail through heat-driven breakdown of winding insulation. Failure often co-occurs with regulator/rectifier failure: an unregulated R/R can cook the stator through prolonged voltage abuse. Symptoms are loss of charging, occasionally accompanied by visibly burned windings or a melted connector between stator and R/R.

  • Inner tank coating bubbling and flaking

    fuel systemoccasional

    The internal coating of the fuel tank can bubble and flake, with fragments entering the fuel pump filter and lines. Symptoms include stumbling, stalling, hard starting and backfire. Triumph has acknowledged the issue under warranty in some markets.

  • Auto cam chain tensioner spring weakening

    enginecommon

    The factory automatic cam chain tensioner uses a spring that weakens over time, allowing the cam chain to slacken. Symptoms include cold-start rattle progressing to rattle at idle and low RPM in all gears. In severe neglected cases, the chain can deposit aluminium filings in the cases or, in worst-case scenarios, fail catastrophically. The platform-shared issue is well documented across both the Street Triple 675 and its Daytona 675 sibling. Triumph subsequently moved to a hydraulic tensioner design on later platforms.

  • Closed-throttle to part-throttle stumble at low RPM

    fuel systemcommon

    A bog or stumble in the 4,000–6,000 rpm range when transitioning from closed throttle to small openings. Causes attributed across owner discussions include throttle position sensor calibration drift, idle stepper (ISCV) carbon buildup and throttle body fouling. The issue is commonly mitigated by ECU re-mapping (TuneECU community).

  • Two-piston Nissin sliding-pin front caliper seizure

    brakesoccasional

    The Base model's front caliper sliders seize from corrosion, leading to uneven pad wear, spongy lever feel and accelerated disc wear. Particularly common in damp climates. The R variant uses different (Daytona-spec radial-mount four-piston) calipers and is not affected by this specific failure mode.

  • Factory coolant hose clamps leak prematurely

    coolingcommon

    Several factory coolant hose clamps are reported as under-torqued or poorly positioned at assembly, with hose 22 (between engine and radiator, per Triumph parts diagrams) most commonly cited. Coolant weeping or dripping near the mid-engine is sometimes observed within the first 500–1,200 miles.

  • Speedometer reads approximately 8% high

    electricsvery common

    The speedometer reads optimistically — typically around +4 mph at an indicated 60 mph, with non-linear error increasing at higher indicated speeds. The error is consistent with ECE Regulation 39 design margins (legally required not to under-read). The odometer also runs slightly high but at a different rate. The two are linked in the stock ECU and cannot be corrected independently without aftermarket reflash.

  • Matt-finish engine case paint bubbling, peeling and corroding

    bodyworkcommon

    The matt powder-coated engine cases show bubbling, cracking and peeling due to inadequate factory surface preparation. Underlying corrosion forms, progressing if untreated. The issue is widely cited across both Street Triple 675 and Daytona 675 first-generation owner communities.

  • Round-headlight lens cracking from inside

    bodyworkoccasional

    The plastic lens of the late-first-generation round headlight assembly (MY2011 and into MY2012 production) cracks from the inside outward due to heat cycling. Triumph issued a dealer service campaign offering free replacement under warranty and extended goodwill outside warranty for affected VINs (commonly cited range 480782 to 526783). Could not locate a corresponding NHTSA or KBA federal recall — the response appears to have been a manufacturer-led service campaign rather than a federal recall. [editor review: confirm whether a federal recall number exists]

The Expert Benchmark

Where this Triumph Street Triple 675 pulls ahead of — or falls behind — its rivals on the numbers, and the typical bike in its class on character.

What kind of bike this is — character vs. the class

This bike Class average

The shape of the Triumph Street Triple 675 — numbers and character vs. the average Naked Bike

Head-to-head: Triumph Street Triple 675 vs. its rivals

The 'Should I Buy It?' Score

Forget spec-sheet bragging. Here's who the Street Triple 675 is actually built for.

A scenic view of Angeles Crest Highway winding through rugged Southern California canyon terrain. Rocky mountainsides with golden earth tones frame the asphalt road with tight sweeping curves. Double yellow center line visible, sparse vegetation along the shoulders, clear blue sky with white clouds. Daylight, dry conditions. Iconic location for canyon-road enthusiasts.
Josh Sorenson / Pexels

Best motorcycle for Angeles Crest?

If your weekends mean Angeles Crest and the canyons, this light, sharp triple was built for exactly that. Precise, confident in switchbacks, quick to reward skill. Just plan on better wet tires.

Made for Angeles Crest Highway · Coronado Trail / US 191 · Highway 1 / Big Sur

Best motorcycle for Texas Hill Country?

For Hill Country roads and roadtrip stops, it's easy to live with and genuinely fun at real-world pace. Light enough to never feel like work, with a sound that makes every ride an event.

Made for Austin / Texas Hill Country · Twisted Sisters · Austin / Handbuilt Motorcycle Show

Best motorcycle for Tail of the Dragon?

On the Dragon and Cherohala, this bike rewards technique over speed. It rotates on one input and holds a clean line through tight corners, which is just what a skill-focused rider wants.

Made for Back of the Dragon · Blue Ridge Parkway · Cherohala Skyway

Alternatives to the Triumph Street Triple 675

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 Triple 675. “cheaper/pricier” is what that bike costs second-hand, not how worn it is.