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    MALOSSI - ALUMIN-CYLINDER KIT Ø 52 H2O MHR BIG BORE Testa Rossa mod-he

MALOSSI - ALUMIN-CYLINDER KIT Ø 52 H2O MHR BIG BORE Testa Rossa mod-head

3115374
€474.44
€403.28 Save 15%
Handling 4-5 days

BIG BORE Testa Rossa 94 cc The new generation BIG BORE engine! Stud bolts, only for liquid-cooled scooters (7 ports and exhaut crossbar - piston with 1 segment - modular head - required boring of original case or C-One Malossi case - engine shaft with connecting rod different from the original). Deriving directly from seven port technology, which animates the revolutionary Flanged Mount, BIG BORE Testa Rossa cylinders represent the latest success achieved thanks to the efforts and studies that Malossi has continued to devote to engines intended for original Piaggio and Yamaha cases and, with…

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This product is indicated as universal, it may not be compatible with your motorcycle.
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BIG BORE Testa Rossa 94 cc


The new generation BIG BORE engine!
Stud bolts, only for liquid-cooled scooters (7 ports and exhaut crossbar - piston with 1 segment - modular head - required boring of original case or C-One Malossi case - engine shaft with connecting rod different from the original).

Deriving directly from seven port technology, which animates the revolutionary Flanged Mount, BIG BORE Testa Rossa cylinders represent the latest success achieved thanks to the efforts and studies that Malossi has continued to devote to engines intended for original Piaggio and Yamaha cases and, with their unprecedented capacity of 94 cc, they allow the BIG BORE family to make a significant leap forward.

Externally almost indistinguishable from their flanged counterparts, BIG BORE Testa Rossa cylinders feature a stud bolt framework compatible both with original engines and with the C-One Malossi case. Even inside they are totally similar to Flanged Mounts, thanks to the renowned configuration with seven ports and dual exhaust port, with the only difference given by the limits set by the inner passage of the bolts that affects the size and development of the exhaust.

The head is once again modular, with new internal profiles specifically designed to increase the torque and feeling of the engine, now much brighter and even more progressive. The head cover is made of forged aluminium, red anodized and lathed in high precision CNC machines.

TECHNICAL FEATURES

CYLINDER KIT

COOLING

TIMING SYSTEM

MATERIAL

BORE mm

STROKE mm

CAPACITY mm

ADVANCE

PISTON RING CLEARANCE mm

SQUISH

COMPRESSION RATIO

SPARK PLUG

3115374

H2O

7 ports

Aluminium

52

44

93,4

16°

0,15

0,55

01:14.6

6314455.S0 IRIDIUM IW 34

3115385

H2O

7 ports

Aluminium

52

44

93,4

16°

0,15

0,55

01:14.6

6314455.S0 IRIDIUM IW 34

Products reserved exclusively for racing in specifically designed locations according to the provisions of the competent sporting authorities. We disclaim all liability for improper use

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Vehicle compatibility (20 vehicles)

Aprilia(7)
  • AREA 51 50 2T LC
  • GULLIVER 50 2T LC
  • SONIC 50 2T LC
  • SR NETSCAPER 50 2T LC (MINARELLI)
  • SR RACING 50 2T LC (MINARELLI)
  • SR REPLICA 50 2T LC ←1999
  • SR STEALTH 50 2T LC (MINARELLI)
Benelli(1)
  • 491 SPORT 50 2T LC (MINARELLI)
Beta(1)
  • EIKON 50 2T LC
Italjet(1)
  • DRAGSTER 50 2T LC
MBK(2)
  • MACH G 50 2T LC
  • NITRO 50 2T LC
Malaguti(5)
  • F12 DIGIT KAT-PHANTOM 50 2T LC
  • F12 DIGIT KAT-PHANTOM 50 2T LC euro 2
  • F12 R LC 50 2T LC euro 2
  • F12-PHANTOM 50 2T LC
  • F15 FIREFOX 50 2T LC
Yamaha(3)
  • AEROX 50 2T LC euro 0-1
  • AEROX 50 2T LC euro 2
  • JOGRR 50 2T LC euro 2

Frequently asked questions

Faq

  • Looking at the barrel, I noticed strange marks on the exhaust sleeve. Is it normal for them to be there?

    This is a deliberate machining. As high temperatures are reached at this point with strong expansion, this machining was done to lower the point in order to avoid seizing.

3115374

Data sheet

Country of origin
Italy
Vehicle brand
Aprilia
Benelli
Beta
Italjet
MBK
Malaguti
Yamaha
Vehicle
Aprilia AREA 51 50 2T LC
Aprilia GULLIVER 50 2T LC
Aprilia SONIC 50 2T LC
Aprilia SR NETSCAPER 50 2T LC (MINARELLI)
Aprilia SR RACING 50 2T LC (MINARELLI)
Aprilia SR REPLICA 50 2T LC ←1999
Aprilia SR STEALTH 50 2T LC (MINARELLI)
Benelli 491 SPORT 50 2T LC (MINARELLI)
Beta EIKON 50 2T LC
Italjet DRAGSTER 50 2T LC
MBK MACH G 50 2T LC
MBK NITRO 50 2T LC
Malaguti F12 DIGIT KAT-PHANTOM 50 2T LC
Malaguti F12 DIGIT KAT-PHANTOM 50 2T LC euro 2
Malaguti F12 R LC 50 2T LC euro 2
Malaguti F12-PHANTOM 50 2T LC
Malaguti F15 FIREFOX 50 2T LC
Yamaha AEROX 50 2T LC euro 0-1
Yamaha AEROX 50 2T LC euro 2
Yamaha JOGRR 50 2T LC euro 2

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