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Scooter · 2017

Retro 50

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MotoLibrary Score
31 /100 Commuter
Power
3 HP
Torque
3 Nm
Engine
49 ccm

2017 WK Retro 50 Technical Analysis & Specification Breakdown

Engineered by WK for the scooter motorcycle segment, the 2017 WK Retro 50 utilizes a 49.2 cc (3 cu in) air-cooled single cylinder, four-stroke layout. In factory specification, peak output is rated at 3.4 HP (2.4 kW) at 7,000 rpm while maximum torque reaches 3.4 Nm (2.5 lb-ft) at 6,600 rpm, transferring power to the rear wheel through a automatic gearbox and belt final drive. Internal engine geometry specifies a bore and stroke of 39.0 x 41.4 mm (1.5 x 1.6 inches).

Rider ergonomics and chassis geometry center around a 1,240 mm (48.8 in) wheelbase engineered for quick, flickable steering geometry. The 6-liter (1.6 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Power Band Window
6,600–7,000 rpm
Engine
Displacement 49.2 ccm (3.00 cubic inches)
Engine Type Single cylinder, four-stroke
Engine Details Single cylinder, four-stroke
Power 3.4 HP (2.4 kW)) @ 7000 RPM
Torque 3.4 Nm (0.3 kgf-m or 2.5 ft.lbs) @ 6600 RPM
Bore x Stroke 39.0 x 41.4 mm (1.5 x 1.6 inches)
Fuel System Carburettor
Cooling Air
Transmission
Gearbox Automatic
Final Drive Belt (final drive)
Clutch CVT
Chassis
Front Suspension Hydraulic fork
Rear Suspension Dual adjustable oil shock
Wheelbase 1240 mm (48.8 inches)
Wheels & Brakes
Front Tyre 120/70-12
Rear Tyre 130/70-12
Front Brakes Single disc
Rear Brakes Expanding brake (drum brake)
Wheels White wall tyres
Dimensions & Weight
Overall Height 1165 mm (45.9 inches)
Overall Length 1925 mm (75.8 inches)
Overall Width 675 mm (26.6 inches)
Fuel Capacity 6.00 litres (1.59 US gallons)
Other
Starter Electric
Color Options White/blue, black, white
Carrying Capacity Under-seat storage
More from WK
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.

Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
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.
Rider Profile

Who Is This Bike For?

🟢
Beginner
A2 license compatible, manageable power.
🏙️
Best For
City & Commuting
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