Malossi Contrast Spring red (Racing) – clean CVT tuning for Minarelli / Morini

With the Malossi contrast springs, you get a powerful tool to really cleanly tune your scooter's variator. The art of CVT setups lies in the right combination of contrast spring, variator weights, and clutch springs – this is exactly where this red Racing contrast spring comes in.

Important: If your V-belt slips, you should definitely choose a stiffer contrast spring. At the same time, however: too stiff can have a negative effect on power output. With the Malossi spring, you can specifically adjust your setup, whether you are going for everyday usability or sportily optimized performance – e.g., on a Yamaha Aerox 50, an MBK Nitro 50, or an Aprilia SR 50 (depending on the model/variant according to the list below).

If you get stuck while tuning: Feel free to visit an online community – almost every conceivable combination of springs and weights has already been tested there.

Advantages & Features

• Red Malossi Racing contrast spring for targeted variator tuning
• Helps to reduce V-belt slip through higher preload (if a stiffer spring is necessary)
• Fine-tuning through the right combination of contrast spring, variator weights, and clutch springs
• Ideal if you want to optimize your setup for sporty performance
• Note: A spring that is too stiff can negatively influence the power output – tuning is decisive

Details & Comparison Numbers

• Manufacturer: Malossi
• Version: red
• Type: Racing
• Compatibility (according to product name): for Minarelli / Morini
• OEM No. (for comparison purposes): 29 7046.R0, 297046.R0, 297046R0

Compatibility / Vehicles

Fits many vehicles – here is an excerpt of the compatible models (exactly as specified):

• Aprilia: Area 51 50; Scarabeo 50 2-stroke 1999-2009; Amico 50 Sport; Rally 50 LC water; Gulliver 50 AC air; SR 50 Racing LC water 2000; SR 50 LC water 1994-1997; Gulliver 50 LC water; Rally 50 AC air; SR 50 AC air 1994-1997
• Italjet: Scoop 50; Dragster 50; Bazooka 50; Yankee 50; Cruise 50 2-stroke; Velocifero 50; Pista 50; Pista 2 50; Formula 50 AC air; Formula 50 LC water
• KTM: Tempo 50; Quadra 50; Chrono 50; Go 50; Ark 50 AC air; Ark 50 LC water
• Longjia: Zero One 50 2-stroke
• MBK: Booster Naked 50; Hot Champ 50 2-stroke; Booster Track 50; Forte 50; Nitro 50 1999; Target 50; Nitro Naked 50; Booster 50 12 inch 2004; Booster Rocket 50; Mach G 50 AC air
• Malaguti: Crosser 50; Ciak 50 2-stroke; F10 Wap 50 CPI-engine 2004-2008; Centro 50 Minarelli-engine 2008; Yestarday 50; F12 Phantom R 50 AC air; F12 Phantom 50 LC water 2000-2004; F15 Firefox AC air 2004; F10 50 Jetline 1999; F15 Firefox LC water 2004
• Piaggio: New Fly 125 i.e. 3V M791; Liberty 125 3V MT34
• Rieju: First 50; Windy 50
• Suzuki: AP 50; Address 50; Sepia 50
• Vespa: S 125 LXS; Sprint 3V 125; Primavera 125 3V M81; LX 125 3V Touring
• Yamaha: Aerox 50 1999; Jog 50; Vino Classic 50; Zuma II 50 vertical engine; Why 50; Aerox R 50 2013; Spy 50; Jog R 50 AC air; Aerox 50 Cat 2003; YE 50 Zest

Why Malossi?

Malossi has stood for years for well-thought-out tuning and drive components that not only give you more control when tuning, but also rely on precision fit and consistent quality – exactly what you need for a functioning variator setup.

Tip: For a balanced setup (e.g., on Yamaha Aerox 50 / MBK Nitro 50 / Aprilia SR 50 depending on variant), always consider the spring, rollers, and clutch springs as a complete package – then the performance will be cleanly delivered to the road.