Suzuki TU250

Suzuki TU250X
ManufacturerSuzuki
Production1997present (Japan)
PredecessorGN250
ClassStandard
EngineModel J438, 249 cc (15.2 cu in), 4-stroke, 2-valve, single-cylinder, Air-cooled, SOHC, Fuel Injection
Bore / stroke72.0 mm × 61.2 mm (2.83 in × 2.41 in)
Compression ratio9.2:1
Top speed75 mph (121 km/h)
Power20 bhp (15 kW) @ 7200 rpm
Torque12.54 lb⋅ft (17.00 N⋅m) @ 4500 rpm
Ignition typeElectronic
TransmissionWet multi-plate clutch, 5-speed gearbox, constant mesh, O-ring chain
Frame typeSteel backbone
SuspensionFront: telescopic, Rear: swingarm
BrakesFront: Tokico two-piston caliper single disc, Rear: drum
TiresTube-type: Cheng Shin,
Front: 90/90-18M/C 51S,
Rear: 110/90-18M/C 61S
Wheelbase1,375 mm (54.1 in.)
DimensionsL: 2,070 mm (81 in)
W: 750 mm (30 in)
H: 1,075 mm (42.3 in)
Seat height770 mm (30 in)
Weight140 kg (310 lb) (dry)
149 kg (328 lb) (wet)
Fuel capacity12 L (3.2 US gal)
Fuel consumption82 mpgUS (2.9 L/100 km) claimed,
64 mpgUS (3.7 L/100 km) tested
53 mpgUS (4.4 L/100 km) tested
Turning radius2.4 meters, 7.9 feet
RelatedTU250 Volty, TU250G Grasstracker, TU250GB Bigboy, ST250, GZ250

The Suzuki TU250 marketed also as the TU250X, ST250 and ST250 E-Type is a single-cylinder, air-cooled lightweight street bike manufactured by Suzuki across two generations from 1994 to 2019.

The TU has a single overhead cam (SOHC), unsleeved, four-stroke engine with chain-drive, a standard riding posture and styling resembling the Universal Japanese Motorcycle (UJM) of the 1960s and 1970s.

The second generation TU250 was manufactured at Suzuki's ISO 14001-certified assembly plant in Toyokawa, Japan, and was marketed in Asia (2003–2019), Oceania and North America (2009–2019).