Viper Diablo - 2008 Specifications and Reviews

The 2008 Viper Diablo is a heavyweight custom cruiser powered by a 2491cc air-cooled V-twin engine. Built for experienced riders seeking distinctive styling and commanding presence, this machine delivers classic cruiser character with modern engineering. Known for its low-slung ergonomics and substantial 272kg dry weight, it excels on highway cruising and shows.

2008
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General information

CategoryCustom / cruiser
Year2008
ModelViper Diablo
 
 

Engine and Transmission Specifications

ClutchHydraulic High Performance Rivera
Transmission typefinal driveBelt
Gearbox6-speed
Cooling systemAir
Lubrication systemDry Sump
StarterElectric
Fuel systemCarburettor. Mikuni HSR 45 Flat Slide
Stroke4
Engine typeV2
Capacity:2490.99 ccm (152.00 cubic inches)

Physical measures and capacities

Wheelbase1,727 mm (68.0 inches)
Overall length2,438 mm (96.0 inches)
Seat height610 mm (24.0 inches) If adjustable, lowest setting.
Dry weight272.2 kg (600.0 pounds)
 
 

Viper Diablo dimensions and frame

Exhaust systemTuned 2 into 1
Rear brakesSingle disc. 4-piston caliper
Front brakesSingle disc. 4-piston caliper
Rear tyre dimensions260/40-18
Front tyre dimensions130/70-18
Rear suspensionViper Chrome Billet Aluminum Swing Arm with Viper Oil Dampened Adjustable Air-Ride
Front suspensionMarzocchi Inverted Adjustable Cartridge Forks
Rake (fork angle)34.0°

Speed and acceleration

Color optionsViper Red, Viper Black, Viper Blue/Silver, Custom Flame

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay

Performance Profile & Rider Fit

5.5s
0-60 mph (est.)

Best For

Track10%
City35%
Cornering25%
Daily Riding45%
Touring45%
Passenger45%

Rider Profile

Best ForBest suited to riders who already have experience with big, heavy custom cruisers, given the massive 260mm rear tire and long, low-slung chassis.
PurposeBuilt as a boulevard and show-cruiser statement bike, prioritizing style, torque, and presence over outright speed or agility.
Rider FitThe low 610mm seat height makes it accessible for shorter riders, but the 272kg dry weight demands confident low-speed handling and upper-body strength at a standstill.
CharacterA big-inch air-cooled V-twin custom with a wide rear tire, chopper-ish rake, and premium suspension components that signal a boutique, hand-built cruiser character.
Not Ideal ForNot a fit for riders wanting sharp cornering, off-road capability, or a lightweight, nimble city commuter.

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

Rider Fit Visualizer

2008 Viper Diablo Rider Ergonomics Assessment

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

Feet:

At 610mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2008 Viper Diablo, with a cramped knee angle of around 65 degrees and an upright 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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