Malossi MHR Crankshaft Bearing Set 20x47x14 C4H – for stable Minarelli High-Rev Setups

If your Minarelli engine is tuned up to the high-end range, you need bearings that can handle it permanently. The reinforced high-speed ball bearing set from Malossi (MHR) is designed exactly for this: stable, temperature-resistant, and designed for high speeds – ideal if you demand reliable performance from your setup.

The ball bearings come with a semi-open polyamide cage, which prevents excessive heat development. Perfect as an upgrade/renewal during a rebuild or the revision of your Minarelli engine – e.g., on scooters such as Yamaha Aerox 50, Aprilia SR 50, or MBK Booster (and many other Minarelli-based models).

Features & Advantages

• Reinforced high-speed ball bearing set from Malossi (MHR)
• Designed for Minarelli engines tuned up to the high-end range
• Semi-open polyamide cage to reduce heat development
• Precise dimensions: 20x47x14 mm
• Scope of delivery: 2x ball bearings (crankshaft bearing set)
• Note: please order any required shaft seals separately

Technical Data / Details

• Dimensions: 20 x 47 x 14 mm
• Version: C4H (high-speed/performance design)
• Quantity: 2 ball bearings
• OEM number (for comparison purposes): 6615137E

Compatibility (Vehicles)

The crankshaft bearing set fits many vehicles with Minarelli engines, e.g., Yamaha Aerox / Jog, Aprilia SR 50, MBK Booster / Nitro, as well as numerous other models from the vehicle list (including Generic, Malaguti, Peugeot, Keeway, PGO, Gilera, Italjet and many more). Please check the dimensions 20x47x14 mm and the assignment in your vehicle list before purchasing.

Why Malossi MHR?

Malossi has stood for proven performance parts with clean manufacturing quality in scooter tuning for decades. The MHR series is specifically designed for sporty setups – exactly right if your Minarelli engine (e.g., in the Yamaha Aerox 50 or Aprilia SR 50) permanently runs under higher load and speed.

Item number: M6615137E