Suzuki GSXS750 GSX-S 750 2017-2021 Service Manual

Suzuki's own global marketing doesn't undersell the pedigree: "feel genuine GSX-R power stir your spirit... built to reign supreme over naked sport bikes." The GSX-S750 name arrived at Intermot 2016 as a rebrand of the European-market GSR750, itself derived from a 2005 GSX-R750 engine — but the 2017 refresh brought genuine mechanical changes, not just a badge swap.

Power comes from a 749cc liquid-cooled DOHC inline-four, 16 valves with a 72mm x 46mm bore and stroke and a 12.3:1 compression ratio, delivering a claimed 112-114 hp at 9,500-10,500 rpm and roughly 60 lb-ft of torque at 7,250-9,000 rpm depending on market and measurement standard, run through a 6-speed gearbox with chain final drive. For 2017, Suzuki genuinely reworked the front end — MCN's review noted the fork diameter actually shrank from 43mm to 41mm while gaining preload adjustment and finally getting proper 4-piston radial-mount calipers, a rare case of a smaller component delivering better performance. Suzuki's Dual Throttle Valve system and Low RPM Assist smooth throttle response and reduce stalling risk at low speeds, backed by selectable traction control sensitivity.

Bennetts' buying guide was candid about the GSX-S750's position in Suzuki's late-2010s lineup: a genuinely well-sorted, easy, safe bike rather than an innovative one, feeling roughly a generation behind flashier rivals like the Street Triple in outright excitement — but MoreBikes' used-bike guide found the chassis consistently over-delivered against expectations, calling it "beautifully balanced" with confidence-inspiring stock suspension and an excellent front end despite the modest preload-only adjustment. A unique frame design blends a tubular streetbike layout with twin-spar sportbike rigidity, paired with Nissin monobloc radial calipers on dual 310mm front discs. A "Phantom" all-black colorway appeared as a paint option rather than a true special edition, and July 2021 brought a final fresh color scheme before the platform's eventual replacement. Seat height sits at 32.1 inches, with claimed wet weight around 465 lbs and a roughly 155-mile tank range.