Malossi crankshaft bearings for Minarelli (20x47x14 mm) – C4 bearings, set of 2 without shaft seals

When your Minarelli engine has to work hard (especially with heavily tuned setups), you need crankshaft bearings that can cleanly handle temperature and load. This Malossi crankshaft bearing set comes as a set of 2 in the size 20x47x14 mm and is specifically designed for high loads.

Unlike the crankshaft bearings from the MHR series, no special modifications have been made here – such as turning the outer ring. A real highlight is the semi-open PTFE cage of the C4 bearing: it helps to prevent excessive heat generation and simultaneously reduces the risk to the cylinder should a bearing break under extreme load.

Important: Delivered as a set of 2, however without shaft seals.

Advantages / Features

• Dimension: 20x47x14 mm
• Version: C4 bearing (for higher load/temperature range)
• PTFE cage, semi-open: reduces heat generation
• More safety: lower risk for the cylinder in case of bearing failure under extreme load
• Recommendation: particularly suitable for heavily tuned engines
• Scope of delivery: 2 pieces of crankshaft bearings (without shaft seals)
• Comparison OEM: 6611566E

Technical Details

• Product type: crankshaft bearing
• Dimensions: 20 x 47 x 14 mm
• Bearing clearance: C4
• Cage: semi-open, PTFE
• Set: set of 2
• Shaft seals: not included
• OEM number (for comparison purposes): 6611566E

Compatibility (Excerpt)

Fits many vehicles with Minarelli units, e.g., Yamaha Aerox, MBK Nitro or Aprilia SR 50 – but also many other models from the list.

• Aprilia: Area 51 50; Scarabeo 50 2-stroke (1999-2009); Amico 50 Sport; SR 50 AC air (1994-1997); Sonic 50 AC air; Rally 50 LC water; SR 50 LC water (1994-1997); SR 50 WWW AC air (2000); SR 50 Racing LC water (2000); Gulliver 50 AC air
• Generic: ROC 50; Jump 50; Spin GE 50; Race GT 50; Sirion 50 2-stroke; Classic 50; Iron 50; Toxic 50 Sport; XOR2 50 Stroke; XOR2 50 Anniversary
• Gilera: Zulu Enduro 50; RCR 50 ZAPG11D/ZAPABA01/ZAPG11A (2005-2011); GSM 50 (Derbi engine); H@K 50 (Morini engine); SMT 50 SM ZAPG12D/ZAPG12A (2005-2010); SMT 50 SM Racing (2011)
• Italjet: Scoop 50; Yankee 50; Pista 50; Pista 2 50; Dragster 50
• KTM: Go 50; Quadra 50; Tempo 50; Chrono 50; Ark 50 AC air; Ark 50 LC water
• Keeway: ARN 50; Goccia 50 (2015); Focus 50; Gocchia 50; Swan 50; F-ACT Evo 50; F-ACT 50 NKD Naked; RY8 50 Racing; RY8 50 SP; RY8 50 Evo
• Longjia: LJ50QT-G 50; Firefox 50; LJ50QT-H 50; Two Liquid 50; F1 50; LJ50QT-F-01 50; LJ50QT-F 50; Grido 50; Zero One 50 2-stroke; Trevis 50 2-stroke
• MBK: Fizz 50; Nitro 50 (1999); Nitro Naked 50 (2013); Evolis 80 4MU (1993-1999); Ovetto 50 (from model year 07 / 2007); Equalis 50; Nitro R 50 2-stroke (2013); Mach G 50 AC air; Nitro 50 Cat (2003); Booster 50 12 inch 5SA/5YA (2001-2003)
• Malaguti: Yestarday 50; F10 Wap 50 (CPI engine, 2004-2008); F10 Cat. 50 (1999-2004); Ciak 50 2-stroke; F12 Phantom 50 AC air (2003-2007); F12 Phantom R 50 AC air; F12 Phantom R 50 LC water; F15 Firefox LC water (2004); F10 50 Jetline (1999); F12 Phantom 50 LC water (2000-2004)
• PGO: Big Max 50
• Peugeot: Kisbee RS 50 2-stroke; Ludix 2 Blaster Ice Blade 50; Jet-Force C-Tech 50; Ludix Blaster Radical 50; Citystar 50 RS; Ludix 2 Urban Track 50; Ludix 2 Trend 50; New Vivacity Sportline 50 2-stroke; Ludix 2 Blaster R-Cup 50; Ludix 2 Snake Furious 50
• Yamaha: Axis 50; Target 50; BWS 50 12 inch (2004); Zuma II 50 (vertical engine); Aerox R 50 Naked (2013); Jog R 50 AC air; BWs 50 Easy 2DW (2013); Jog RR 50 LC water; BWs 50 Naked SA231 (2016); BWs 50 Original SA231 (2011)

OEM Number (for comparison purposes)

• 6611566E