Viper Diamondback - 2009 Specifications and Reviews

The 2009 Viper Diamondback is a heavyweight cruiser built for riders seeking classic styling with modern performance. Its 2491cc V-twin engine and low seat height appeal to those wanting substantial power without compromise. Known for aggressive custom aesthetics, this machine excels for long-distance cruising and weekend rides with commanding presence.

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General information

CategoryCustom / cruiser
Year2009
ModelViper Diamondback

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

Wheelbase1,803 mm (71.0 inches)
Overall length2,540 mm (100.0 inches)
Seat height610 mm (24.0 inches) If adjustable, lowest setting.
Dry weight272.2 kg (600.0 pounds)
 
 

Viper Diamondback dimensions and frame

Exhaust systemTuned 2 into 1
Rear brakesSingle disc
Front brakesSingle disc
Rear tyre dimensions260/40-18
Front tyre dimensions120/70-21
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 optionsRed, Black, Blue/Silver
Oil capacity4.20 litres (0.28 quarts)
 
 

Other specs

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

Performance Profile & Rider Fit

5s
0-60 mph (est.)

Best For

Track15%
City30%
Cornering25%
Daily Riding40%
Touring45%
Passenger35%

Rider Profile

Best ForThis is a machine best suited to experienced riders who are comfortable handling a long, heavy, custom-styled chopper-style cruiser with a stretched wheelbase and steep 33-degree rake.
PurposeBuilt as a bold American custom cruiser, it's meant for making a statement on boulevards and at bike nights rather than for outright performance or long-distance touring efficiency.
Rider FitThe low 610mm seat height makes it accessible for shorter riders at a stop, but the near-300kg dry weight and extended front end demand strength and confidence at low speeds and when maneuvering.
CharacterTorque-rich 45-degree V-twin with a big-inch feel, chrome-heavy custom styling, an aggressive raked-out stance, and a boutique feel courtesy of the Baker overdrive transmission and premium Marzocchi suspension.
Not Ideal ForThis is not the right choice for riders seeking agile cornering, off-road capability, or a lightweight commuter, as its stretched geometry and heavy mass make tight, technical riding cumbersome.

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

Rider Fit Visualizer

2009 Viper Diamondback Rider Ergonomics Assessment

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Feet:

At 610mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2009 Viper Diamondback, with a cramped knee angle of around 70 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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