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Cylinder Kit MALOSSI MHR TEAM BB77 Ø50 Pin Ø12 Pia. H2O (S 39,3/R 85)
Article information
BIG BORE Ø 50
The new BIG BORE Ø 50, stroke 39,2-39,3 and 44, cylinder kits comes from the technology of the famous Malossi 7 ports cylinders. They are designed for both Minarelli and Piaggio engines.
All pilots, thrilled about the news, wished to test them. The expectations were not disappointed : the power increase and the absolute reliability proved, once again, the high quality of the products and Malossi professionalism.
Technical specifications:
- 7 ports cylinder, H2O, gravity melted in aluminium alloy, cylinder casing coated in cermetal, lapped with diamond tools
- Bore 50
- 1 ring, strengthen and rounded head piston
- KDN5 cast iron piston ring Ø 50 x 0.8
- Modular head in primary aluminium alloy, drained, with calculated and orientated convoying system of cooling circuit.
Technical note : the BIG BORE cylinder kits must be used only coupled with Malossi crankshafts.
ATTENTION: to grant the due stiffness to the cylinder kit, the cylinder has an introduction diameter into the crankcase of 56,2 -0,1/-0,2 mm. Therefore, it is necessary to bore the crankcases with a boring bar of 56,7 0,0/0,1 mm for a depth of 21 mm.
Specifications
Part number Malossi | : | 3113030 |
Bore | : | Ø50mm |
Stroke | : | 39,3mm |
Engine displacement | : | 77,2cc |
Material | : | Aluminium |
Class | : | Race |
Including cilinder head | : | Yes |
Bore category | : | Bigbore |
Piston pin | : | Ø12mm |
Cooling | : | Water cooled |
Fits
Cylinder Kit MALOSSI MHR TEAM BB77 Ø50 Pin Ø12 Pia. H2O (S 39,3/R 85) fits the following vehicles:- Aprilia SR 50 Factory H2O 2T E2 2004-2009 (Piaggio)
- Aprilia SR 50 Factory H2O 2T E2 2010-2014 (Piaggio)
- Aprilia SR 50 Racing H2O 2T E2 07/2003-2008 (Piaggio)
- Aprilia SR 50 Sport H2O 2T E2 07/2003-2008 (Piaggio)
- Aprilia SR 50 Street H2O 2T E2 07/2003-2008 (Piaggio)
- Aprilia SR 50 Street H2O 2T E2 2009-2012 (Piaggio)
- Derbi GP1 50 H2O 2T E1 2001-2003 (Piaggio)
- Derbi GP1 50 Open H2O 2T E2 2006-2009 (Piaggio)
- Derbi GP1 50 Race H2O 2T E2 2005-2007 (Piaggio)
- Gilera DNA 50 H2O 2T E1 2000-2001
- Gilera DNA 50 H2O 2T E2 2002-2004
- Gilera DNA RST 50 H2O 2T E2 2005-2006
- Gilera Runner 50 DD H2O 2T E1 1998-2001
- Gilera Runner 50 DT H2O 2T E1 1998-2001
- Gilera Runner 50 FL H2O 2T E2 2002-2004
- Gilera Runner 50 SP H2O 2T E2 2002-2004
- Gilera Runner 50 SP RST H2O 2T E2 2005-2006
- Gilera Runner 50 SP RST H2O 2T E2 2007
- Gilera Runner 50 SP RST H2O 2T E2 2008-2009
- Gilera Runner 50 SP RST H2O 2T E2 2010-2017
- Piaggio NRG 50 H2O 2T 1994-1996
- Piaggio NRG MC2 50 H2O 2T 1997
- Piaggio NRG MC2 DD 50 H2O 2T 1998
- Piaggio NRG MC2 DT 50 H2O 2T 1998
- Piaggio NRG MC2 Extreme 50 H2O 2T E1 1999-2000
- Piaggio NRG MC3 DD 50 H2O 2T E1 2001-2004
- Piaggio NRG Power DD 50 H2O 2T E2 2004-2006
- Piaggio NRG Power DD 50 H2O 2T E2 2007-2017
- Piaggio NTT 50 H2O 2T 1994-1996
- Piaggio Quartz 50 H2O 2T 1991-1994
- Piaggio Zip SP1 50 H2O 2T 1996-2000
- Piaggio Zip SP2 50 H2O 2T E1 2001-2005
- Piaggio Zip SP2 50 H2O 2T E2 2006-2013
Documentation
73_9128.pdf
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