2009 UM V2S-250 Technical Analysis & Specification Breakdown
Positioned in UM's naked motorcycle lineup, the 2009 UM V2S-250 pairs a 249 cc (15.2 cu in) oil & air-cooled v2, four-stroke architecture with road-focused gearing. Internal engine geometry specifies a bore and stroke of 57.0 x 48.8 mm (2.2 x 1.9 inches) with a 10.4:1 compression ratio.
On the scales, the V2S-250 measures 170.1 kg (375 lbs) wet (curb). Rider ergonomics and chassis geometry center around a 795 mm (31.3 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,435 mm (56.5 in) wheelbase engineered for balanced agility and highway composure. The 17.03-liter (4.5 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's UM archive, this model family spans 2 indexed model years from 2008 to 2009, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Standover Height
795 mm (31.3 in)
Engine
Displacement249.0 ccm (15.19 cubic inches)
Engine TypeV2, four-stroke
Engine DetailsV2, four-stroke
Compression10.4:1
Bore x Stroke57.0 x 48.8 mm (2.2 x 1.9 inches)
Valves/Cylinder4
Fuel SystemCarburettor. 2 x Mikuni, 22 mm
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
IgnitionCDI
CoolingOil & air
Transmission
Gearbox5-speed
Final DriveChain (final drive)
ClutchMulti plate, wet manual clutch
Chassis
Frame TypePerimeter frame chassis
Front SuspensionTelescopic forks
Rear SuspensionSwingarm
Wheelbase1435 mm (56.5 inches)
Wheels & Brakes
Front Tyre110/70-17
Rear Tyre150/70-17
Front BrakesDouble disc
Rear BrakesSingle disc
Dimensions & Weight
Weight incl.170.1 kg (375.0 pounds)
Seat Height795 mm (31.3 inches) If adjustable, lowest setting.
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
