Always one of our favorite middleweight standard bikes, Triumph’s Street Triple has received some major upgrades for 2017, with an all-new 765cc three-cylinder powerplant and electronics suite heading the list. The Street Triple has been one of the top middleweights since its debut in 2007, but the numerous upgrades position it to be the class leader if its spec sheet numbers are any indication. The latest triple from the British marque will be available in three versions: a base S model, a mid-level R model, and a top-line RS model.
Biggest change is obviously the new engine, which was developed from the Daytona 675 powerplant. Triumph says that there are more than 80 new parts within the inline three-cylinder, which includes the larger pistons (bore increases from 74mm to 78mm, although compression ratio stays at 12.65:1) sliding in Nikasil-coated aluminum cylinders, and different crankshaft (stroke increases from 52.3mm to 53.4mm). A lighter, freer-flowing exhaust and redesigned airbox help the larger engine breathe better, with a revised gearbox layout and shorter first and second gears contributing to slicker shifting and quicker acceleration from a stop.
Each of the Street Triple models reportedly comes with its own engine setup and ECU that provides different power levels. The S model is said to provide 6.6% more horsepower and a 7.3% increase in torque than its predecessor, with a claimed 111HP @ 11,250rpm and 53.8 ft/lb @ 9,100 rpm. Triumph says the R model has its own specific crankshaft, with peak power climbing to 115HP @ 12,000 rpm and torque boosted to 56.8 ft/lb at 9,400 rpm. And finally, the top-shelf Street Triple RS has the highest state of tune, delivering 121 HP @ 11,700 rpm, with a miniscule decrease in torque at 56.7 ft/lb at 10,800 rpm.
An new gull-wing design aluminum swingarm boasts increased torsional stiffness for stability with an engineered reduction in lateral rigidity for better feel when leaned over. Also, the swingarm pivot has been repositioned for better anti-squat properties under acceleration.
The suspension and brakes on each Street Triple model also vary accordingly. The S model is equipped with a non-adjustable Showa 41mm inverted separate-function fork and piggyback-reservoir shock with spring preload adjustment, with braking handled by 310mm discs and twin-piston Nission slide-mount calipers. Meanwhile the R version gets a Showa 41mm inverted separate function Big Piston Fork with adjustable rebound/compression damping and spring preload along with a fully adjustable Showa piggyback-reservoir-equipped shock out back; brakes get upgraded to Brembo M4.32 four-piston monoblock radial-mount calipers biting on 310mm discs. And finally, the RS model gets the highest-spec Showa 41mm inverted BPF with full rebound/compression damping and spring preload adjustability up front, and a premium Öhlins STX40 piggyback-reservoir-equipped shock out back; Brembo's top-of-the-line M50 monoblock four-piston radial-mount calipers with span/ratio-adjustable lever. All three versions use the same Brembo single-piston slide-pin caliper with a single 220mm disc rear brake combination.
All three Street Triples feature a ride-by-wire throttle system with different riding modes that adjust the throttle response, ABS, and traction control, although the electronics suites vary between the trio from that point. For the S model, there are two riding modes: Road and Rain. The R version gets four riding modes: Road, Rain, Sport, and Rider Programmable. And the RS gets an additional Track mode to the previous four riding modes.
On the R and RS models, a new 5-inch TFT full color instrument panel with three different displays depending on the riding mode selected provides all riding information. Navigation through the various features is done through a five-way toggle joystick control on the left handlebar. Incidentally, the ABS can be independently adjusted between three settings (road, track, or off) and the traction control between five settings (rain, road, sport, track, or off) on the R and RS models. The RS also comes standard with a quickshifter, with the unit available as an accessory for the R and S models. Pirelli's Diablo Rosso Corsa tires come standard on the S and R models, while the top-shelf RS comes equipped with Diablo Supercorsa SP tires for maximum performance.
MSRP for the new 2017 Triumph Street Triple was only available for the base S model at $9,900. Color choices are as follows:
Street Triple S: Diablo Red or Phantom Black (Metallic)
Street Triple R: Jet Black (Gloss), Matt Aluminum Silver or Crystal White
Street Triple RS: Matt Silver Ice or Phantom Black (Metallic)