Cruisers

2012Viper Diamondback

32 fields on record

The 2012 Viper Diamondback is a heavyweight cruiser custom bike designed for riders seeking aggressive styling and raw V-twin power. Its 2491cc 45-degree V-twin engine delivers commanding torque with classic carbureted simplicity, while the rigid frame and Rivera six-speed transmission appeal to purists who value mechanical character. Best known for bold aesthetics and straightforward performance, it suits experienced cruiser enthusiasts who appreciate old-school engineering with modern reliability.

Capacity: 2488.0 ccm
Engine: V-Twin, four-stroke
Gearbox: 6-speed
Dry weight: 299.4 kg
Seat height: 610 mm
Power: 116.7 HP (87.0 kW) @ 4600 RPM

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What’s new for the 2012 Viper Diamondback

vs the 2011

Spec	2011	2012
Dry weight	272.2 kg (600.1 pounds)	299.4 kg (660.1 pounds)
Front suspension	Inverted Adjustable Cartridge Forks	Marzocchi Inverted Adjustable Forks
Front brakes	Single disc	Single disc. 4-piston, chromed

Other years 2008 2009 2010 2011 2012 2013 2014 2015

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail5%

Cornering25%

City riding30%

Daily riding40%

Touring45%

Two-up35%

Track15%

Best for: Built 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.
Built for: Torque-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 for: This 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.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

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Your height

Inseam (optional)

Units

At 610mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2012 Viper Diamondback, with a cramped knee angle of around 70 degrees and an upright riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at 750 mm or under — Short Kings →

Find bikes that fit your height →

Full specifications

Engine

Capacity: 2488.0 ccm
Power: 116.7 HP (87.0 kW) @ 4600 RPM
CO2 Emissions: 246 CO2 g/km
EPA Est. Fuel Consumption: 10.47 L/100km (22.5 US mpg)
EPA CO Emissions: 2.0 CO g/km
Engine type: V-Twin, four-stroke
Power/weight ratio: 0.3898 HP/kg (dry)
Cooling system: Air
Fuel system: Carburettor
Starting: Electric
Ignition: CDI
Aspiration: Naturally aspirated
Valves per cylinder: 2
Lubrication system: Dry sump with oil in the frame technology
Torque: Not on record - add it

Transmission

Gearbox: 6-speed
Transmission type: Manual
Final drive: Belt
Clutch: Hydraulic High Performance by Rivera

Dimensions & weight

Wheelbase: 1803 mm
Overall length: 2477 mm
Seat height: 610 mm
Dry weight: 299.4 kg
Oil capacity: 4.20 litres

Chassis & suspension

Front suspension: Marzocchi Inverted Adjustable Forks
Rear suspension: Viper Chrome Billet Aluminum Swing Arm with Viper Oil Dampened Adjustable Air-Ride
Rake (fork angle): 33.0°

Brakes & wheels