Engineered by E-Ton for the atv motorcycle segment, the 2012 E-Ton Viper 90R pairs a 88.4 cc (5.4 cu in) air-cooled single cylinder, four-stroke architecture with road-focused gearing. Internal engine geometry specifies a bore and stroke of 47.0 x 51.0 mm (1.9 x 2.0 inches) with a 10.6:1 compression ratio.
On the scales, the Viper 90R measures 113 kg (249 lbs) dry. Rider ergonomics and chassis geometry center around a 680 mm (26.8 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 930 mm (36.6 in) wheelbase engineered for quick, flickable steering geometry. The 3.6-liter (1 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 48 km/h (30 mph).
Standover Height
680 mm (26.8 in)
Engine
Displacement88.4 ccm (5.39 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Compression10.6:1
Bore x Stroke47.0 x 51.0 mm (1.9 x 2.0 inches)
Fuel SystemCarburettor
IgnitionC.D.I.
CoolingAir
Transmission
GearboxAutomatic
Final DriveBelt (final drive)
DrivelineCVT
Performance
Top Speed48.0 km/h (29.8 mph)
Chassis
Front SuspensionA-Arm and Adjustable shocks
Front Travel50 mm (2.0 inches)
Rear SuspensionSwing Arm and Adjustable shocks
Rear Travel85 mm (3.3 inches)
Wheelbase930 mm (36.6 inches)
Ground Clearance120 mm (4.7 inches)
Wheels & Brakes
Front Tyre18/7-8
Rear Tyre18/9-8
Front BrakesExpanding brake (drum brake)
Front Brake Ø85 mm (3.3 inches)
Rear BrakesSingle disc
Rear Brake Ø190 mm (7.5 inches)
Dimensions & Weight
Dry Weight113.0 kg (249.1 pounds)
Seat Height680 mm (26.8 inches) If adjustable, lowest setting.
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.
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.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
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.
