Scooter · 2007
Top Boy 50 On Road
MotoLibrary Score
31 /100 Commuter
Torque
6 Nm
Engine
50 ccm
Technical Overview
2007 Kymco Top Boy 50 On Road Technical Analysis & Specification Breakdown
Positioned in Kymco's scooter motorcycle lineup, the 2007 Kymco Top Boy 50 On Road relies on a 49.5 cc (3 cu in) air-cooled single cylinder, two-stroke powerplant. In factory specification, maximum torque reaches 5.5 Nm (4.1 lb-ft) at 6,500 rpm, transferring power to the rear wheel through a automatic gearbox.
On the scales, the Top Boy 50 On Road measures 95.5 kg (211 lbs) dry.
Engine
Displacement 49.5 ccm (3.02 cubic inches)
Engine Type Single cylinder, two-stroke
Engine Details Single cylinder, two-stroke
Torque 5.5 Nm (0.6 kgf-m or 4.1 ft.lbs) @ 6500 RPM
Valves/Cylinder 0
Fuel Control Reed valve / power valve
Ignition CDI
Lubrication Separate lubrication with automatic oil injection pump
Cooling Air
Transmission
Gearbox Automatic
Clutch Automatic centrifugal dry clutch
Driveline V-belt automatic transmission (CVT)
Wheels & Brakes
Front Tyre 120/90-10
Rear Tyre 130/90-10
Front Brakes Single disc
Rear Brakes Expanding brake (drum brake)
Wheels Aluminium alloy rims
Dimensions & Weight
Dry Weight 95.5 kg (210.5 pounds)
Overall Height 1070 mm (42.1 inches)
Overall Length 1905 mm (75.0 inches)
Overall Width 723 mm (28.5 inches)
Oil Capacity 1.20 litres (1.27 US quarts) 2T oil tank
Service & Fluids
Engine Oil 2-stroke synthetic motorcycle oil (API TC / JASO FC/FD)
Brake Fluid DOT 4
Spark Plugs NGK BR8HS / BR9ES
Battery 12V 4Ah (YTX4L-BS / YB4L-B)
Other
Starter Electric and kick
Electrical 12V 4Ah (YTX4L-BS / YB4L-B)
More from Kymco
Buying Checklist
Before You Compare This Bike
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.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
Rider Profile
Who Is This Bike For?
🏙️
Best For
City & Commuting
⚖️
Handling
Very lightweight — easy to handle
Estimate
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