Cylinder Kit TOP PERFORMANCE Big Bore MINARELLI HORIZONTAL LC 70cc / Ø47 / PIN Ø10

This version includes our new head (that can be disassembled) that ensures significantly lower operating temperatures in the cylinderpiston unit for improved reliability and performance.

In this new head, a larger portion of the combustion chamber comes into contact with the coolant to keep temperatures within an ideal range for enhanced engine efficiency.

The compression ratio has also been modified to accommodate the new temperature values.

Scope of delivery:

1 Cylinder Ø 47 mm in special “Minacrom” cast iron (with chrome additive)

1 Piston with high silicon content and SILVER insert

1 Chrome-plated piston ring in special cast iron S10

1 Piston gudgeon pin Ø 10 x3 8

1 mm Roller bearing for gudgeon pin Ø 10 x 14 x 12.5 mm

2Gudgeon pin circlips

1 Combustion chamber

1 Combustion chamber cover

8 Green Viton O-ring Ø 7.66 x 1.78

1 Green Viton O-ring Ø 51.50 x 1.78

1 Green Viton O-ring Ø 22.22 x 2.62

1 O-ring Ø 104.37 x 3.54

1 Reduction for temperature sensor

1 Cap M14 x 1.25

1 Aluminium gasket for cap M14 x 1.25

1 Cylinder base gasket, 0.4 mm thick, in aluminium

3 Metal clamps Ø 16 x 25

• Bore mm: 47
• Stroke mm: 39,2
• Displacement cm3: 68
• Squish mm: 0,9 ±0,1
• Timing diagram: exhaust: 199° transfer ports: 127°
• Compression ratio: geometric:14:1 actual: 7,3:1

Fits for models:
APRILIA:
Aprilia Area 51 50 H2O 2T E1 '98-'00
Aprilia Gulliver 50 H2O 2T '96-'98
Aprilia Rally 50 H2O 2T '96-'99
Aprilia Sonic 50 H2O 2T E1 '98-'03
Aprilia Sonic 50 H2O 2T E2 '04-'08
Aprilia SR50 Racing H2O 2T '97-'00 (Minarelli)
Aprilia SR50 Replica H2O 2T '94-'96 (Minarelli)
Aprilia SR50 Stealth H2O 2T '97-'00 (Minarelli)
Aprilia SR50 WWW H2O 2T '97-'00 (Minarelli)

BENELLI:
Benelli 491 Racing 50 H2O 2T '98-'01
Benelli 491 RR 50 H2O 2T E1 '99-'03
Benelli 491 Sport 50 H2O 2T '97-'01
Benelli K2 50 H2O 2T '98-'01

BETA:
Beta ARK 50 H2O 2T '97-'98
Beta ARK 50 H2O 2T E1 '99-'01
Beta ARK 50 H2O 2T E2 '02-'06
Beta ARK X-Type 50 H2O 2T E2 '03-'05
Beta Eikon 50 H2O 2T E1 '98-'02
Beta Eikon 50 H2O 2T E2 '03-'05
Beta Eikon Team 50 H2O 2T E2 '06-'07

ITALJET:
Italjet Dragster 50 H2O 2T '98-'02

KTM:
KTM ARK 50 H2O 2T '97-'98

MALAGUTI:
Malaguti F12 Phantom 50 H2O 2T '94-'98
Malaguti F12 Phantom 50 H2O 2T E1 '99-'01
Malaguti F12 Phantom 50 H2O 2T E2 '02-'06
Malaguti F12 Phantom R 50 H2O 2T E2 '07-'12
Malaguti F15 Firefox 50 H2O 2T '96-'98
Malaguti F15 Firefox 50 H2O 2T E1 '99-'01
Malaguti F15 Firefox 50 H2O 2T E2 '02-'06

MBK:
MBK Mach G 50 H2O 2T '02-'15
MBK Nitro 50 H2O 2T '97-'98
MBK Nitro 50 H2O 2T E1 '99-'02
MBK Nitro 50 H2O 2T E2 '03-'12
MBK Nitro F1 50 H2O 2T E1 '99-'02
MBK Nitro F1 50 H2O 2T E2 '03-'04
MBK Nitro II 50 H2O 2T E2 '13-'16
MBK Nitro Naked 50 H2O 2T E2 '05-'12
MBK Nitro Naked II 50 H2O 2T E2 '13-'16

RENAULT:
Renault Campus 50 H2O 2T '02-'03
Renault F1 50 H2O 2T '01-'03

RIEJU:
Rieju First 50 H2O 2T '95-'99
Rieju RS NKD 50 H2O 2T '14-'15
Rieju RS- Sport 50 H2O 2T '14-'15

YAMAHA:
Yamaha Aerox 50 H2O 2T '97-'98
Yamaha Aerox 50 H2O 2T E1 '99-'02
Yamaha Aerox 50 H2O 2T E2 '03-'12
Yamaha Aerox II 50 H2O 2T E2 '13-'16
Yamaha Aerox Naked II 50 H2O 2T E2 '13-'16
Yamaha Aerox SP 50 H2O 2T E1 '99-'02
Yamaha Aerox SP 50 H2O 2T E2 '03-'12
Yamaha JogRR 50 H2O 2T '02-'15