Peugeot Speedfight 4 50 2T LC - complete data sheet
The Peugeot Speedfight saga is one of the historical references among 50 cc sport scooters in Europe. Since the late 90's, the Speedfight has been characterized by a very marked aesthetic, a well cared cycle part and an agile behavior in the city. Within this family, the Peugeot Speedfight 4 50 2T LC represents the liquid-cooled two-stroke version, aimed at those seeking maximum performance within the 50 cc displacement.
Produced between 2015 and 2019, the Speedfight 4 50 2T LC shares the chassis base and much of the bodywork with the 4T AC versions, but mounts a 2-stroke engine and a liquid-cooled system with front radiator, as well as disc brakes on both trains and a larger diameter inverted fork.
Peugeot Speedfight 4 50 2T LC technical characteristics
Engine
- Type: single-cylinder 2-stroke
- Cooling: liquid-cooled
- Displacement: 49.9 cc
- Maximum power: 4 kW (≈ 5,4 hp) at 7.000 rpm
- Power supply: reed box
- Carburetor: Dellorto
- Starter: electric starter and starter pedal
- Ignition: CDI
- Transmission: automatic variator with belt drive
- Spark plug: NGK CR7EB
- Recommended fuel: unleaded gasoline 95 octane
2-stroke LC engine maintenance: Compared to 4-stroke engines, 2-stroke engines require greater control of elements such as the piston, piston rings and exhaust, especially in modified units. It is essential to respect the recommended oil mixtures, to monitor the condition of the lubrication pump or the mixing system and to follow the service intervals indicated in the official owner's manual. Spark plug changes must be carried out according to the specification and tightening torque indicated by the manufacturer.
Cycle part
- Chassis: tubular steel frame with scooter-type structure
- Front suspension: upside-down telescopic fork Ø 32 mm
- Rear suspension: hydraulic monoshock
- Front brake: 215 mm disc
- Rear brake: 190 mm disc
- Wheels: 13" alloy
- Front tire: 130/60-13
- Rear tire: 130/60-13
- Seat height: 800 mm
- Declared dry weight: 100 kg
- Fuel tank: 8 liters
Cycle maintenance: In addition to the usual wear of tires, brake pads and discs, it is advisable to periodically check the upside-down fork (seals, dust cap and oil condition) and the liquid cooling system (coolant level, hoses, water pump and radiator). The tightening torques for chassis, wheels and steering should follow the Speedfight 4 2T LC owner's manual.
2T LC vs. 4T AC: advantages and disadvantages
Within the Speedfight 4 range, the 50 2T LC and 50 4T AC versions offer different usage profiles:
- Performance and feel: the liquid-cooled 2T engine offers a more forceful power delivery and a higher peak power figure compared to the air-cooled 4T. This translates into better acceleration and recuperation, which is especially appreciated in sporty use and tuning.
- Tuning and modifications: 2-stroke engines are, in general, more suitable for tuning. There is a wide availability of cylinders, exhausts and high-performance components specific for the Speedfight 4 2T LC, which makes it easier to gain performance within authorized use and/or for circuit use.
- Maintenance: in exchange for this higher performance, the 2T LC requires more attentive maintenance: periodic cylinder and piston checks, lubrication control, exhaust cleaning and greater sensitivity to the quality of the oil and fuel. The 4T air, on the other hand, tends to offer longer maintenance intervals and quieter operation in daily use.
- Consumption and daily use: the 4T AC is more fuel efficient and, in general, quieter and more progressive, making it more suitable for daily urban commuting and users who prioritize cost per kilometer and simplicity. The 2-stroke LC sacrifices some fuel consumption in favor of performance.
- Cooling: the liquid cooling of the 2T LC version provides better thermal management in intensive use or in hot climates, keeping the engine in a more stable temperature range than the air-cooled 4T versions.
In summary, the Peugeot Speedfight 4 50 2T LC is the most interesting option for those looking for a sporty 50 cc scooter, with better standard performance and greater tuning potential, while the Speedfight 4 50 4T AC is aimed at a more rational, economical and easy to maintain use.
Peugeot Speedfight 4 50 2T LC in our online store
In our online store you will find a wide selection of specific spare parts and accessories for the Peugeot Speedfight 4 50 2T LC: from maintenance consumables(2T oils, spark plugs, belts, rollers, brake pads and discs, tires, batteries, etc.) to engine components(cylinders, pistons, gaskets, reed boxes, carburetors, exhausts) and cycle parts(shock absorbers, forks, discs, calipers, radiators and cooling hoses).
We also have fairings, handlebars, grips, levers, decorative bolt kits and other aesthetic and functional elements, which allow us to keep the Speedfight 4 2T LC in perfect condition and, if desired, customize its appearance and adapt it to the taste of each user.
