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Technical Overview
2012 Kawasaki KX85-II Monster Energy Technical Analysis & Specification Breakdown
Positioned in Kawasaki's cross - motocross motorcycle lineup, the 2012 Kawasaki KX85-II Monster Energy relies on a 84 cc (5.1 cu in) liquid-cooled single cylinder, two-stroke powerplant. Internal engine geometry specifies a bore and stroke of 48.5 x 45.8 mm (1.9 x 1.8 inches) with a 10.0:1 compression ratio.
On the scales, the KX85-II Monster Energy measures 71 kg (157 lbs) wet (curb). Rider ergonomics and chassis geometry center around a 870 mm (34.3 in) seat height — reflecting a long-travel chassis stance that favors ground clearance and off-pavement control, combined with a 1,290 mm (50.8 in) wheelbase engineered for quick, flickable steering geometry. The 5.5-liter (1.5 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Standover Height
870 mm (34.3 in)
Engine
Displacement84.0 ccm (5.13 cubic inches)
Engine TypeSingle cylinder, two-stroke
Engine DetailsSingle cylinder, two-stroke
Compression10.0:1
Bore x Stroke48.5 x 45.8 mm (1.9 x 1.8 inches)
Fuel SystemCarburettor. Keihin PWK28. Reed valve.
Fuel ControlSingle Overhead Cams (SOHC)
IgnitionDigital CDI
CoolingLiquid
Transmission
Gearbox6-speed
Performance
ExhaustPro Circuit Exhaust
Chassis
Frame TypePerimeter, high-tensile steel
Rake27.0°
Trail103 mm (4.1 inches)
Front Suspension36 mm upside-down telescopic fork, with 16-way compression damping
Front Travel275 mm (10.8 inches)
Rear SuspensionUNI-TRAK single shock system with 4 position compression and 20 position damping adjustment plus adjustable spring preload/ 10.8 in.
Rear Travel275 mm (10.8 inches)
Wheelbase1290 mm (50.8 inches)
Ground Clearance340 mm (13.4 inches)
Wheels & Brakes
Front Tyre70/100-19
Rear Tyre90/100-16
Front BrakesSingle disc
Front Brake Ø220 mm (8.7 inches)
Rear BrakesSingle disc
Rear Brake Ø184 mm (7.2 inches)
Dimensions & Weight
Weight incl.71.0 kg (156.5 pounds)
Seat Height870 mm (34.3 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.
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.
