2009 CH Racing CH 511 Racing Big Wheels Technical Analysis & Specification Breakdown
Positioned in CH Racing's minibike, cross motorcycle lineup, the 2009 CH Racing CH 511 Racing Big Wheels pairs a 49.7 cc (3 cu in) air-cooled single cylinder, two-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 8 HP (5.8 kW).
On the scales, the CH 511 Racing Big Wheels measures 40 kg (88 lbs) dry, translating to a power-to-weight ratio of 0.2 HP/kg (5 kg per horsepower). Rider ergonomics and chassis geometry center around a 735 mm (28.9 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,100 mm (43.3 in) wheelbase engineered for quick, flickable steering geometry. The 2.8-liter (0.7 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's CH Racing archive, this model family spans 2 indexed model years from 2009 to 2010, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Power-to-Weight
0.2 HP/kg (5 kg/HP)
Standover Height
735 mm (28.9 in)
Engine
Displacement49.7 ccm (3.03 cubic inches)
Engine TypeSingle cylinder, two-stroke
Engine DetailsSingle cylinder, two-stroke
Power8.0 HP (5.8 kW))
Fuel SystemCarburettor. DELL´ORTO PHBG 14 MS
CoolingAir
Chassis
Frame TypeSteel
Front SuspensionTelescopic fork
Rear SuspensionSingle shock absorber
Wheelbase1100 mm (43.3 inches)
Ground Clearance280 mm (11.0 inches)
Wheels & Brakes
Front Tyre2.50-14
Rear Tyre3.00-12
Front BrakesSingle disc
Front Brake Ø175 mm (6.9 inches)
Rear BrakesExpanding brake (drum brake)
Dimensions & Weight
Dry Weight40.0 kg (88.2 pounds)
Power/Weight0.2000 HP/kg
Seat Height735 mm (28.9 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.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
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.
