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:
- AEON MOTOR COBRA 50 2T (AT70) (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- APRILIA SR 50 2T 1994-> (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- APRILIA GULLIVER 50 2T (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- APRILIA RALLY 50 2T (MINARELLI) (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- APRILIA SCARABEO 50 2T (MINARELLI) (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- APRILIA SONIC 50 2T (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- APRILIA SR WWW 50 2T (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- ATALA CAROSELLO 50 2T (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- BETA ARK 50 2T (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- BETA CHRONO 50 2T (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- BENELLI 491 GT 50 2T (MINARELLI) (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- BENELLI K2 50 2T (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- BENELLI NAKED 50 2T (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- BENELLI PEPE 50 2T (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- BETA QUADRA 50 2T (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- BETA TEMPO 50 2T (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- BSV AX 50 (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- BSV GZ 50 (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- CPI HUSSAR 50 2T <-2002 (50 C)
- CPI OLIVER 50 2T <-2002 (50 C)
- CPI POPCORN 50 2T <-2002 (50 C)
- MALAGUTI F10 50 2T (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- MALAGUTI F12-PHANTOM 50 2T (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- MALAGUTI CENTRO 50 2T (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- MALAGUTI CIAK 50 2T (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- MALAGUTI YESTERDAY 50 2T (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- MBK EVOLIS 50 2T (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- MBK FIZZ 50 2T (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- MBK FLIPPER 50 2T (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- MBK FORTE 50 2T (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- MBK HOT CHAMP 50 2T (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- MBK MACH G 50 2T (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- MBK OVETTO 50 2T (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- MBK SORRISO 50 2T 1996-> (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- MOTRON SYNCRO 50 (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- MOTRON THUNDER'S 50 (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- PGO BIG MAX 50
- YAMAHA AXIS 50 2T (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- YAMAHA BREEZE 50 2T (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- YAMAHA JOG ER 50 2T (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- YAMAHA JOG 50 2T (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- YAMAHA JOG R 50 2T (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- YAMAHA JOG Z 50 2T (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- YAMAHA NEO'S 50 2T (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- YAMAHA VINO 50 2T (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- YAMAHA WHY 50 2T (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
- YAMAHA ZEST 50 2T (IF the CRANKSHAFT has a Ø 12 PIN INSTALL the PISTON 34 8538)
