At the heart of the 2015 Viper Diamondback custom - cruiser motorcycle, Viper relies on a 2491 cc (152 cu in) air-cooled v2, four-stroke powerplant. In factory specification, maximum torque reaches 215.6 Nm (159 lb-ft) at 3,600 rpm, transferring power to the rear wheel through a 6-speed gearbox and belt final drive.
On the scales, the Diamondback measures 299.4 kg (660 lbs) dry. Rider ergonomics and chassis geometry center around a 610 mm (24 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,803 mm (71 in) wheelbase engineered for planted straight-line stability.
Within MotoLibrary's Viper archive, this model family spans 8 indexed model years from 2008 to 2015, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Standover Height
610 mm (24 in)
Engine
Displacement2491.0 ccm (152.00 cubic inches)
Engine TypeV2, four-stroke
Engine Details45 Degree V-Twin
Torque215.6 Nm (22.0 kgf-m or 159.0 ft.lbs) @ 3600 RPM
Fuel SystemCarburettor. Mikuni HSR 45 Flat Slide
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
IgnitionCDI
LubricationDry sump with oil in the frame technology
CoolingAir
Transmission
Gearbox6-speed
Final DriveBelt (final drive)
ClutchBaker 9-Plate RSD
DrivelineBaker Pro 6-Speed Over-Drive
Performance
ExhaustTuned 2 into 1
Chassis
Rake33.0°
Front SuspensionMarzocchi Inverted Adjustable Forks
Rear SuspensionViper Chrome Billet Aluminum Swing Arm with Viper Oil Dampened Adjustable Air-Ride
Wheelbase1803 mm (71.0 inches)
Wheels & Brakes
Front Tyre120/70-21
Rear Tyre260/40-18
Front BrakesSingle disc. 4-piston, chromed
Rear BrakesSingle disc
Wheels5-spoke chrome. Metzeler tyres.
Dimensions & Weight
Dry Weight299.4 kg (660.0 pounds)
Seat Height610 mm (24.0 inches) If adjustable, lowest setting.
Overall Length2413 mm (95.0 inches)
Oil Capacity4.20 litres (4.44 US quarts)
Other
StarterElectric
Color OptionsBlack with White Stripes, Viper Blue with White Stripes, Black with Yellow Stripes, Galaxy Gray with Black stripes, Black with Silver Stripes, Black with Orange Stripes, custom colors
InstrumentsMulti-Functional Digital Gauges.
ElectricalViper Wiring Harness with 40amp. 3 Phase Charging System
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.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
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.
