Engineered by PRC (Pro Racing Cycles) for the cross - motocross motorcycle segment, the 2006 PRC (Pro Racing Cycles) Phantom LX-R 50 relies on a 49 cc (3 cu in) liquid-cooled single cylinder, two-stroke powerplant. In factory specification, peak output is rated at 12.1 HP (8.8 kW) at 13,000 rpm while maximum torque reaches 6.4 Nm (4.7 lb-ft) at 10,800 rpm, transferring power to the rear wheel through a automatic gearbox and chain final drive. Internal engine geometry specifies a bore and stroke of 40.0 x 40.0 mm (1.6 x 1.6 inches) with a 13.0:1 compression ratio.
On the scales, the Phantom LX-R 50 measures 42 kg (93 lbs) dry, translating to a power-to-weight ratio of 0.29 HP/kg (3.47 kg per horsepower). Rider ergonomics and chassis geometry center around a 635 mm (25 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,003 mm (39.5 in) wheelbase engineered for quick, flickable steering geometry.
Power-to-Weight
0.29 HP/kg (3.47 kg/HP)
Power Band Window
10,800–13,000 rpm
Standover Height
635 mm (25 in)
Engine
Displacement49.0 ccm (2.99 cubic inches)
Engine TypeSingle cylinder, two-stroke
Engine DetailsSingle cylinder, two-stroke
Power12.1 HP (8.8 kW)) @ 13000 RPM
Torque6.4 Nm (0.7 kgf-m or 4.7 ft.lbs) @ 10800 RPM
Compression13.0:1
Bore x Stroke40.0 x 40.0 mm (1.6 x 1.6 inches)
Fuel SystemCarburettor. PRC 19MM
Fuel ControlPort control
IgnitionCDI
Lubricationnone
CoolingLiquid
Max RPM14500
Transmission
GearboxAutomatic
Final DriveChain (final drive)
ClutchThree Show Race Clutch with weld drum
Performance
Top Speed72.4 km/h (45.0 mph)
ExhaustPRC LX-R Race Ripe with aluminum silencer
Chassis
Frame TypeSteel Perimeter
Rake26.0°
Trail100 mm (3.9 inches)
Front SuspensionMarzocchi 32mm mini Cross
Front Travel195 mm (7.7 inches)
Rear SuspensionOhlins 36D Mono shock
Rear Travel260 mm (10.2 inches)
Wheelbase1003 mm (39.5 inches)
Ground Clearance279 mm (11.0 inches)
Wheels & Brakes
Front Tyre100/90-12
Rear Tyre2.75-10
Front BrakesSingle disc. single pistoon claiper
Front Brake Ø160 mm (6.3 inches)
Rear BrakesExpanding brake (drum brake)
Rear Brake Ø80 mm (3.1 inches)
Dimensions & Weight
Dry Weight42.0 kg (92.6 pounds)
Power/Weight0.2881 HP/kg
Seat Height635 mm (25.0 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.
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.
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.
