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The 750 Naked bike class has just gained a formidable entry. Suzuki Motor of America as taken the wraps off the 2015 Suzuki GSX-S750 and GSX-S750Z, which our European readers will recognize as the GSR750 that’s been available on the Continent since 2011 but will now arrive in the U.S. for the first time. These functionally identical motorcycles will certainly enliven what has been an energetic class in the last year.

Using the engine from Suzuki’s best selling model – the GSX-R750 – as a starting point, the GSX-S750’s 749cc mill has been massaged to deliver performance in the rpm range most commonly encountered on the street. With the charges and spent gasses flowing through specially designed intake/exhaust tracts, the valves are directly operated by cam profiles designed to produce bottom-end torque coupled with mid-range power for optimal streeting acceleration.

Suzuki’s Dual Throttle Valve (SDTV) controls the delivery of the air/fuel mixture for smooth throttle response, while new iridium spark plugs initiate the combustion with a hotter, more powerful spark for a more efficient burn. Iridium plugs also reduce maintenance thanks to increased plug longevity. The triangular muffler shares a family resemblance with Suzuki’s GSX-R line.

The chassis of the GSX-S blends a twin-spar frame with a tubular rear section and then attaches it to an inverted fork and a link-type shock controlling a steel swingarm. Dual 310mm discs and 2-piston calipers handle front braking duties while a 240mm rear disc is clamped by a single-piston binder.

The 32.1 in. seat height mates with an aggressively upright riding position. A matte silver painted super bike-style handlebar reaches back to the pilot to ease the navigation of urban obstacles or sinewy backroads. The tightly integrated package announces the GSX-S750’s miscreant tendencies through thoroughly modern, angular bodywork that is best illustrated by the design of the 4.6-gal. tank and tail section with its LED taillight. Suzuki claims a 463 lb. wet weight and a 57.1 in. wheelbase. Rake and trail figures are as yet unavailable.

The instrument cluster features a large analog tachometer with a LCD digital speedometer plus readouts for gear-position, coolant temperature, fuel gauge, dual tripmeters, fuel consumption and a clock. The backlight has adjustable brightness.

Colors and styling are what differentiate the S750 and the S750Z. Where the GSX-S750 is only available in Metallic Matte Black, the GSX-S750Z stands out in Metallic Triton Blue / Pearl Glacier White. Additionally, outer fork tubes of the Z are anodized in a yellowy-gold color instead of a lighter gold hue, plus red-anodized fork adjuster bolts, a red shock spring and blue chain.

Pricing is as aggressive as the bikes’ styling, with the GSX-S750 retailing for $7,999, and the GSX-S750Z only slightly higher at $8,149. No on-sale date has been set.

2015 Suzuki GSX-S750 & GSX-S750Z Specifications

Engine Type 4-stroke, Inline 4-cylinder, liquid-cooled, DOHC
Engine Displacement 749cc
Bore x Stroke 72.0mm x 46.0mm
Fuel System Suzuki Fuel Injection
Compression Ratio 12.3:1
Ignition Type Electronic ignition (Transistorized)
Transmission 6-speed constant mesh
Overall Length 2115mm (83.3 in)
Overall Width 785mm (30.9 in)
Overall Height 1060mm (41.7 in)
Wheelbase 1450mm (57.1 in)
Ground Clearance 145mm (5.7 in)
Seat Height 815mm (32.1 in)
Curb mass 210kg (463 lbs)
Suspension Front Inverted telescopic, coil spring, oil damped
Suspension Rear Link type, coil spring, oil damped
Brakes Front Disc, twin 310mm
Brakes Rear Disc, 240mm
Tires Front 120/70-ZR17M/C (58W), tubeless
Tires Rear 180/55-ZR17M/C (73W), tubeless
Fuel Tank 17.5 L (4.6 US gal)
Color GSX-S750Z Metallic Triton Blue / Pearl Glacier White
GSX-S750, Metallic Matte Black

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