The GSF650 and GSF1250 models use fuel-injected, liquid-cooled engines, the GSF1250 having an auxiliary balance shaft to reduce vibrations.

[1] With more recent revisions, however, the bike has taken on a more streamlined and modern feel, taking it more towards sports tourer territory.

[2] The GSF1200 remains popular with stunt riders,[citation needed] and is used by a wheelie school in the UK.

[3] Launched in 1989, the GSF250 and GSF400 are naked street motorcycles, with liquid-cooled, inline four cylinder engines derived from the GSX-R250 and GSX-R400 motorcycles, mounted as a stressed member in a steel trellis frame with single rear shock absorber.

From 1991, the GSF400V received variable inlet timing via solenoid-controlled rocker arm engaging with supplementary cams.

In 1995, the second generation GSF250V (GJ77A) and GSF400(V) (GK7AA) introduced significant updates, including new styling, fuel tank, swingarm, air filter assembly, exhaust, seat, controls, console, etc.

[9] Although built on a Bandit chassis, the additional lower fairing gives it a sportier look similar to that of the GSX-R series.

Other differences from the 600 cc models include fuel gauge, higher specification suspension, hydraulically operated clutch, larger diameter front brake discs, and 5-speed gearbox as opposed to the 6-speed gearbox of the 600 Bandit.

2001 The 1200 Bandits received a similar revamp to the one the 600 Bandits received the previous year: 2004 2004 models added a 2-way catalytic converter (for some markets) to the exhaust system, and minor modifications to the exhaust metalwork.

2006 2006 (K6 and SK6) models received a revamp with a new shape tank, side panels, a height adjustable seat and a longer hexagonal-section swinging arm.

The GSF1250 also has a new six-speed constant mesh gearbox with the input shaft mounted below the crankshaft to reduce the length of the engine.

[17] The GSF1250SA version has ABS and Autumn 2007 saw the introduction of the limited edition Street Fighter, featuring a single seat with matching rear cowling, Renthal handlebars, and Yoshimura silencer.

[18] The 1250GT Grand Touring version is introduced with a three-box hard luggage system, fairing lowers and sat-nav.

The cylinders were once again plated with Suzuki's "Composite Electrochemical Material", and carried over the secondary balancer shaft.

[20] It has a pearl mirage white paint scheme, with revised graphics and metallic silver wheels.

It has the same engine and chassis as before, but a full fairing will make it similar in style to the smaller GSX650F.

2015 Suzuki reintroduced the GSF1250SA Bandit with a new half-fairing designed to wrap around the radiator shrouds, and added a front vent below the headlight to smooth out airflow behind the fairing.

[25] Produced from 2010 and last appearing as a 2012 model, it is essentially a fully faired version of the Bandit 1250 with top and side cases, windshield and more in its accessories list.

[26] The first single-cylinder Bandit motorcycle, the GSX150 was introduced at the August 2018 Gaikindo Indonesia International Auto Show in South Tangerang.

The GSX150 was built to accommodate Indonesian market demand for more comfortable commuter bike.