2021 Ccm Stealth Six Technical Analysis & Specification Breakdown
At the heart of the 2021 Ccm Stealth Six naked motorcycle, Ccm utilizes a 600 cc (36.6 cu in) liquid-cooled single cylinder, four-stroke layout. In factory specification, peak output is rated at 55 HP (40.1 kW) while maximum torque reaches 58 Nm (42.8 lb-ft) at 5,500 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 91.7 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.
On the scales, the Stealth Six measures 139 kg (306 lbs) dry, translating to a power-to-weight ratio of 0.4 HP/kg (2.53 kg per horsepower). Rider ergonomics and chassis geometry center around a 820 mm (32.3 in) seat height — resulting in a taller command-style riding posture suited to medium-to-tall inseams, combined with a 1,480 mm (58.3 in) wheelbase engineered for balanced agility and highway composure. The 14-liter (3.7 US gal) fuel tank paired with a rated consumption of 4.2 L/100 km provides an estimated theoretical range of roughly 333 km (207 miles) between fill-ups.
Within MotoLibrary's Ccm archive, this model family spans 2 indexed model years from 2021 to 2022, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
91.7 HP/L
Power-to-Weight
0.4 HP/kg (2.53 kg/HP)
Theoretical Range
~333 km (207 mi)
Engine
Displacement600.0 ccm (36.61 cubic inches)
Engine TypeSingle cylinder, four-stroke
Power55.0 HP (40.1 kW))
Torque58.0 Nm (5.9 kgf-m or 42.8 ft.lbs) @ 5500 RPM
Compression12.0:1
Bore x Stroke100.0 x 76.5 mm (3.9 x 3.0 inches)
Fuel SystemInjection. Mikuni D45
CoolingLiquid
Transmission
Gearbox6-speed
Final DriveChain (final drive)
ClutchMultiple-disc, wet, Hydraulic control
Performance
Fuel Consumption4.20 litres/100 km (23.8 km/l or 56.00 mpg)
Greenhouse Gases97.4 CO2 g/km. (CO2 - Carbon dioxide emission)
Chassis
Frame TypeHigh strength steel, Hand Tig welded
Rake26.0°
Trail118 mm (4.6 inches)
Front SuspensionTelescopic fork, adjustable
Front Travel120 mm (4.7 inches)
Rear SuspensionSingle shock, adjustable.
Rear Travel120 mm (4.7 inches)
Wheelbase1480 mm (58.3 inches)
Wheels & Brakes
Front Tyre130/70-19
Rear Tyre130/70-19
Front BrakesSingle disc
Front Brake Ø320 mm (12.6 inches)
Rear BrakesSingle disc
Rear Brake Ø240 mm (9.4 inches)
Dimensions & Weight
Dry Weight139.0 kg (306.4 pounds)
Power/Weight0.3957 HP/kg
Seat Height820 mm (32.3 inches) If adjustable, lowest setting.
Overall Height1070 mm (42.1 inches)
Overall Length2170 mm (85.4 inches)
Fuel Capacity14.00 litres (3.70 US gallons)
Oil Capacity1.80 litres (1.9 US quarts)
Other
StarterElectric
Color OptionsBlack/bronze
Warranty2-year warranty.
Notes
Matching carbon-fibre headlight cowl. Carbon fibre front and rear mudguards with CNC machined mounts.
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.
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.
