Peugeot Speedfight 1 50cc LC 2t - technical data

The Peugeot Speedfight 50cc is one of the most successful models in the history of European sport scooters. Originally launched in 1997, it quickly became very popular, especially among younger riders, and competed directly with legendary models such as the Yamaha Aerox and the Aprilia SR 50. With its aggressive, racing-inspired design and a chassis that was revolutionary for its time, the Speedfight 1 laid the foundation for one of the most successful scooter model lines, with more than 600,000 units sold worldwide.

The liquid-cooled version (LC), produced between 1997 and 1999, features a powerful 2-stroke single-cylinder engine. Its angular bodywork with twin headlights and sharp lines shaped the late-1990s look. Thanks to its balanced weight-to-power ratio, it won over key markets such as Spain, Germany, and the UK, and became the go-to scooter for anyone looking for urban mobility with a sporty character.

Speedfight 1 2T LC engine and performance

The core of this model is a durable, responsive engine that suits both city riding and tuning fans.

• Engine type: 2-stroke single-cylinder
• Cooling: Water (LC)
• Displacement: 49.1 cm³
• Bore x stroke: 40 x 39.1 mm
• Intake: Via reed valve block
• Ignition: Electronic CDI
• Starter: Electric and kickstarter
• Transmission: Automatic transmission with CVT and V-belt
• Clutch: Centrifugal clutch
• Fuel tank capacity: 7 liters

Chassis and components speedfight 50 lc 2t

What sets the Speedfight 1 apart from its competitors is the chassis, especially the front single-sided swingarm, which provides a clean look and a very direct ride feel.

• Chassis type: Steel tube
• Front suspension: Single-sided swingarm system with central hydraulic damper
• Rear suspension: Side-mounted hydraulic mono-shock
• Front brake: Disc brake Ø 180 mm with dual-piston caliper
• Rear brake: Disc brake Ø 180 mm
• Front tire: 120/70 x 12" 1.3 bar
• Rear tire: 140/70 x 12" 1.6 bar
• Curb weight: 96 kg
• Dimensions: length: 1730 mm
  • Length: 1730 mm
  • Width (with mirrors): 700 mm
  • Height (with mirrors): 1155 mm
  • Seat height: 805 mm
  • Wheelbase: 1225 mm
• Spark plug: NGK BR7HS
• Battery: 12V - 4Ah (YTX5L-BS)

Speedfight 1 50cc → liquid-cooled (LC) vs. air-cooled (AC)

When the Speedfight 1 was launched, Peugeot offered two 2-stroke engine configurations that defined the scooter’s character. While they were largely similar in terms of looks, the LC version (liquid-cooled) was positioned as the more powerful option compared to the AC version (air-cooled):

• Power and speed: The liquid-cooled engine allows for a more aggressive cylinder layout, which shows in more stock power and a higher top speed than the air-cooled version.
• Thermal stability: Thanks to the front radiator and coolant circuit, the LC version maintains a consistent operating temperature. This helps prevent power loss (fading) that AC engines can show when they heat up on longer rides or during sporty riding.
• Better braking performance: A key chassis difference is that the Speedfight 1 LC comes stock with a rear disc brake, while the AC version uses a conventional drum brake; this gives the liquid-cooled version noticeably stronger and more precise braking.
• Tuning potential: For tuning fans, the LC engine is the ideal base. With better heat management, 70cc cylinders and racing exhaust systems can be installed with higher reliability than on air-cooled engines.
• Recommended use: While the Speedfight AC is a very good option for short city rides and lower-cost maintenance, the Speedfight 1 LC is the choice for anyone looking for sportier behavior and maximum potential.

Customization and spare parts for your Speedfight 1

One of the big strengths of the Peugeot Speedfight 1 LC is the very wide availability of spare parts, both OEM and tuning parts. In our online shop, there is everything needed for maintenance or for upgrading your scooter:

Maintenance and repair: Wear parts are permanently in stock, such as brake pads, V-belts, variator rollers, and engine gasket sets.

Racing and tuning: If you want to maximize the performance of your 2T engine, we offer 70cc cylinders, Dell'Orto carburetors, performance exhausts, and tuning variators that change your Speedfight’s throttle response.

Looks and customizing: Customize your machine with body kits, stickers, custom headlights, and aluminum accessories such as grips and footrests, so your Speedfight 1 continues to look as spectacular as it did on day one.