Fun without complications
(6 transfer ports – 2 ring piston)
Malossi cast iron thermal units, the first and simplest step to modifying your motorcycl’s engine, are the best choice for continued use of the exhaust system of an approved series or type.
For these thermal units, the elevated feature of durability of cast iron is combined with the almost manically high quality standards of Malossi, one of the few companies to demand the most from even this class of thermal units. Into this is inserted the most rigid selections for the joining of the cylinder and the piston, strictly maintained within a range of 20 microns maximum of tolerance.
| Use | Urban/Sport |
| Power range Ø 47 | 8-10 cv @8.500 rpm |
| Power range Ø 40 | 6-7 cv @9.000 rpm |
| Suitable tuning set-up | Original or homologated exhaust 
CARBURETT Ø 17-19 mm 
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Modellek:
- APRILIA AMICO 50 2T (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- APRILIA SR 50 2T <-1993 (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- FANTIC BIG WHEEL 50 2T (In order to fit the cylinder kit it is necessary to instal the PIVOT PIN and NUT KIT art. 2012859 - If the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- GARELLI PONY 50 2T (In order to fit the cylinder kit it is necessary to instal the PIVOT PIN and NUT KIT art. 2012859)
- GARELLI SR 50 2T (In order to fit the cylinder kit it is necessary to instal the PIVOT PIN and NUT KIT art. 2012859)
- ITALJET BAZOOKA 50 2T (In order to fit the cylinder kit it is necessary to instal the PIVOT PIN and NUT KIT art. 2012859)
- ITALJET PISTA 2 50 2T (In order to fit the cylinder kit it is necessary to instal the PIVOT PIN and NUT KIT art. 2012859 - If the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- ITALJET PISTA 50 2T (In order to fit the cylinder kit it is necessary to instal the PIVOT PIN and NUT KIT art. 2012859)
- ITALJET REPORTER 50 (In order to fit the cylinder kit it is necessary to instal the PIVOT PIN and NUT KIT art. 2012859)
- ITALJET SCOOP 50 2T (In order to fit the cylinder kit it is necessary to instal the PIVOT PIN and NUT KIT art. 2012859 - If the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- ITALJET YANKEE 50 2T (In order to fit the cylinder kit it is necessary to instal the PIVOT PIN and NUT KIT art. 2012859 - If the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- LEM FLASH 50 (In order to fit the cylinder kit it is necessary to instal the PIVOT PIN and NUT KIT art. 2012859)
- LEM GHIBLI 50 (In order to fit the cylinder kit it is necessary to instal the PIVOT PIN and NUT KIT art. 2012859)
- LEM TORNADO 50 (In order to fit the cylinder kit it is necessary to instal the PIVOT PIN and NUT KIT art. 2012859)
- MBK BOOSTER 50 2T euro 0-1 (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- MBK BOOSTER 50 2T euro 2 (A137E) (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- MBK BOOSTER SPIRIT 50 2T euro 0-1 (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- MBK BOOSTER NAKED 50 2T euro 2 (A137E) (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- MBK BOOSTER NG 50 2T euro 0-1 (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- MBK BOOSTER NG 50 2T euro 2 (A137E) (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- MBK BOOSTER ROCKET 50 2T euro 0-1 (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- MBK BOOSTER ROCKET 50 2T euro 2 (A137E) (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- MBK SORRISO 50 2T <-1995 (In order to fit the cylinder kit it is necessary to instal the PIVOT PIN and NUT KIT art. 2012859)
- MBK STUNT 50 2T euro 0-1 (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- MBK STUNT 50 2T euro 2 (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- MBK TARGET 50 2T (In order to fit the cylinder kit it is necessary to instal the PIVOT PIN and NUT KIT art. 2012859)
- YAMAHA BW'S 50 2T euro 0-1 (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- YAMAHA BW'S 50 2T euro 2 (A137E) (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- YAMAHA BW'S Original/Naked 50 2T euro 2 2010-> (A137E) (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- YAMAHA BW'S NG 50 2T euro 0-1 (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- YAMAHA BW'S NG 50 2T euro 2 (A137E) (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- YAMAHA CRZ 50 2T (In order to fit the cylinder kit it is necessary to instal the PIVOT PIN and NUT KIT art. 2012859)
- YAMAHA CT 50 2T (In order to fit the cylinder kit it is necessary to instal the PIVOT PIN and NUT KIT art. 2012859)
- YAMAHA SLIDER 50 2T (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- YAMAHA SPY 50 2T (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- YAMAHA ZUMA 50 2T (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
