Malossi Wing-Bell Clutch Bell (Ø 107 mm) for Minarelli – cooler, more stable, better acceleration

The "Wing Bell" clutch bell is a development by Malossi and was specifically designed to get thermal problems in the variator under control. The integrated cooling fin rim serves two purposes: it stiffens the bell (less deformation = less imbalance during operation) and cools it at the same time – according to Malossi, by up to 70 °C.

The result after installation: longer clutch lifespan, significantly less clutch slip when engines are run warm, and better power transfer to the rear wheel. Performance does not "evaporate" into heat – you get noticeably better acceleration, especially when the engine is at the correct temperature. Ideal if you are on the go daily or sportily with, for example, a Yamaha Aerox 50, MBK Nitro 50, or Aprilia SR 50.

Important: This bell fits only on Minarelli engines that have a 3-shoe clutch installed from the factory (bell inner diameter = 107 mm).

Advantages & Features

• Cooling fin rim for effective heat dissipation (up to 70 °C less)
• Stiffened bell – reduces deformation and thus possible imbalance
• Less clutch slip when engines are run warm
• Longer lifespan of the clutch through better temperature control
• Better power transfer – power goes to the rear wheel instead of into heat
• Better acceleration, especially with a hot/warm-running setup (e.g., Yamaha Aerox 50, MBK Nitro 50, Aprilia SR 50)

Technical Details / Specifications

• Product: Malossi Wing-Bell clutch bell
• Engine: Minarelli
• Requirement: only for 3-shoe clutch from factory
• Bell inner diameter: 107 mm
• OEM No. (for comparison purposes only): 7711166

Compatibility (Vehicles)

Fits many vehicles with Minarelli engine and 3-shoe clutch (Ø 107 mm), such as Yamaha Aerox 50, MBK Nitro 50, Aprilia SR 50 – but also many other models from the list:

• Aprilia: Scarabeo 50 2-stroke 1999-2009; Area 51 50; Sonic 50 AC air; Scarabeo Di-Tech 50 AC air; SR 50 Stealth LC water; SR 50 LC water 1994-1997, 2000; Rally 50 AC air; Amico 50 Sport; SR 50 Racing LC water 2000; Amico 50 GL
• Generic: Vertico 50 2-stroke
• Italjet: Pista 2 50; Yankee 50; Dragster 50; Scoop 50; Pista 50
• KTM: Go 50; Quadra 50; Tempo 50; Chrono 50; Ark 50 AC air; Ark 50 LC water
• Keeway: RY8 50 2009
• Longjia: Zero One 50 2-stroke
• MBK: Booster X 50; Nitro R 50 2-stroke 2013; Nitro 50 1999; Fizz 50; Stunt Naked 50; Nitro 4 50 4-stroke 2014; Mach G 50 AC air; Ovetto 50 4-stroke; Nitro 50 Naked 1PL 2013; Nitro 50 Cat 2003
• Malaguti: Yestarday 50; Ciak 50 2-stroke; F10 Cat. 50 1999-2004; F10 Wap 50 CPI-engine 2004-2008; F12 Phantom 50 LC water 2000-2004; F12 Phantom 50 AC air 2003-2006; F12 Phantom R 50 LC water; F10 50 Jetline 1999; F15 Firefox LC water 2004; F12 Phantom R 50 AC air
• PGO: Big Max 50; T-Rex 50
• Suzuki: Katana 50 Di-Tech engine
• Yamaha: BWS Bump 50; Neos 50 4-stroke from model year 07 2007 to model year 07 2007; Aerox 50 1999; Axis 50; Zuma II 50 vertical engine; Jog R 50 AC air; BWs 50 Easy 2DW 2013; BWs 50 Original SA231 2011; C3 4-stroke; Jog RR 50 LC water

Why Malossi?

Malossi stands for thoughtful performance parts with high manufacturing quality. The Wing-Bell is a typical example: stable construction, better cooling, and a clear practical benefit – especially if you want reliable clutch grip even when run warm with a Yamaha Aerox 50, MBK Nitro 50, or Aprilia SR 50.