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Technical Overview
2010 E-Ton Viper ST. Exl-50 Technical Analysis & Specification Breakdown
Built around E-Ton's atv motorcycle platform, the 2010 E-Ton Viper ST. Exl-50 pairs a 49.3 cc (3 cu in) air-cooled single cylinder, two-stroke architecture with road-focused gearing. Internal engine geometry specifies a bore and stroke of 40.0 x 39.2 mm (1.6 x 1.5 inches) with a 6.8:1 compression ratio.
On the scales, the Viper ST. Exl-50 measures 152 kg (335 lbs) dry. Rider ergonomics and chassis geometry center around a 790 mm (31.1 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,110 mm (43.7 in) wheelbase engineered for quick, flickable steering geometry. The 8-liter (2.1 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Standover Height
790 mm (31.1 in)
Engine
Displacement49.3 ccm (3.01 cubic inches)
Engine TypeSingle cylinder, two-stroke
Engine DetailsSingle cylinder, two-stroke
Compression6.8:1
Bore x Stroke40.0 x 39.2 mm (1.6 x 1.5 inches)
Fuel SystemCarburettor
IgnitionC.D.I.
CoolingAir
Transmission
GearboxAutomatic
Final DriveBelt (final drive)
Chassis
Front SuspensionA-Arm
Front Travel50 mm (2.0 inches)
Rear SuspensionSwing arm
Rear Travel75 mm (3.0 inches)
Wheelbase1110 mm (43.7 inches)
Ground Clearance120 mm (4.7 inches)
Wheels & Brakes
Front Tyre21/6-10
Rear Tyre20/10-9
Front BrakesExpanding brake (drum brake)
Front Brake Ø110 mm (4.3 inches)
Rear BrakesExpanding brake (drum brake)
Rear Brake Ø190 mm (7.5 inches)
Dimensions & Weight
Dry Weight152.0 kg (335.1 pounds)
Seat Height790 mm (31.1 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.
