UM V2S-650 - 2008 Specifications and Reviews

The 2008 UM V2S-650 is a middleweight naked bike featuring a 647cc V2 engine that delivers strong mid-range performance ideal for street riding. Best suited for riders seeking accessible power with classic styling, this bike combines liquid-cooled reliability with a 6-speed transmission and inverted forks for responsive handling.

2008
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General information

CategoryNaked bike
Year2008
ModelUM V2S-650

Engine and Transmission Specifications

Exhaust system2 into 1 sport exhaust system tuned for mid range performance
Transmission type,final driveChain
Gearbox6-speed
Cooling systemLiquid
IgnitionCDI
Fuel controlDOHC
Fuel systemCarburettor. 2 x Mikuni, 38 mm
Bore x stroke81.5 x 62.0 mm (3.2 x 2.4 inches)
Engine typeV2, four-stroke
Capacity:647.00 ccm (39.48 cubic inches)
 
 

Brakes, suspension, Frame and wheels

Rear brakesSingle disc
Front brakesDouble disc
Rear tyre dimensions160/60-ZR17
Front tyre dimensions120/60-ZR17
Rear suspensionSwingarm
Front suspension41mm inverted telescopic forks

Physical measures and capacities

Fuel capacity15.97 litres (4.22 gallons)
Wheelbase1,425 mm (56.1 inches)
Overall width739 mm (29.1 inches)
Overall length2,060 mm (81.1 inches)
Seat height780 mm (30.7 inches) If adjustable, lowest setting.
Weight incl. oil, gas, etc200.0 kg (441.0 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Color optionsBlack, burgundy, silver, red
StarterElectric

Performance Profile & Rider Fit

Best For

Track40%
City65%
Cornering62%
Daily Riding60%
Touring42%
Passenger40%

Rider Profile

Best ForThis naked V-twin suits riders with some prior experience who want a mid-weight machine with real-world torque rather than outright top-end speed.
PurposeBuilt as a sporty naked streetfighter, it's meant for spirited road riding, commuting with character, and weekend backroad fun rather than long-distance touring or racing.
Rider FitAt 200 kg with a 780 mm seat height, it's a manageable but not featherweight bike, favoring riders of average to taller stature with reasonable strength for low-speed maneuvers.
CharacterThe V2 engine and short exhaust give it a distinctive, torquey, slightly rough-and-ready personality that rewards riders who enjoy mechanical charisma over refined smoothness.
Not Ideal ForIt's not a good fit for off-road riders, those seeking cutting-edge performance, or riders wanting a comfortable long-haul touring platform with wind protection and luggage capacity.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2008 UM V2S-650 Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 780mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2008 UM V2S-650, with a relaxed knee angle of around 120 degrees and a forward-leaning riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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