ENGINE: liquid-cooled, four-cylinder DOHC four-stroke with a bore and stroke of 72 mm x 46 mm and four valves per cylinder. The valves are set at a very narrow included angle, allowing the combustion chamber to be very compact, with the intake valves each measuring 27.2 mm in diameter and the exhaust valves measuring 22 mm in diameter. The compression ratio is 12.3:1, with lightweight cast aluminum-alloy pistons. Those details improve combustion efficiency, and more complete combustion is the key to better low-rpm and mid-range response, acceleration and fuel mileage, as well as reduced emissions. The engine powers an integrated close-ratio six-speed transmission.
CHASSIS: A unique chassis incorporates the best qualities of a compact tubular girder streetbike frame and a twin-spar sportbike frame, and is built using a combination of D-section and round-section steel tubes for an especially smooth ride. Wheelbase is 1,450 mm with 25°15′ of rake and 102&160; mm of trail, again contributing to a comfortable ride.
BRAKES: The GSR750 features lightweight three-spoke cast aluminum wheels. The front wheel carries two 310 mm fully-floating brake discs, with Tokico hydraulic dual-piston calipers. The rear wheel is fitted with a single 240 mm brake disc and a Nissin single-piston caliper.