Cylinders and thermal units

BIG BORE Testa Rossa 90 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…

Testa Rossa Flanged Mount 70 cc Maximum performance, flanged design, only for liquid-cooled scooters (7 ports and exhaust crossbar - piston with 1 segment - modular head - required use of C-One Malossi case - engine shaft with connecting rod different from the original). Testa Rossa Flanged Mount 94 cc The most powerful cylinder ever to be produced by Malossi. High capacity, flanged design, only for liquid-cooled scooters (7 ports and exhaust crossbar - piston with 1 segment - modular head - required use of RC-One Malossi case - engine shaft with connecting rod different from the original).…

The most powerful cylinder kit ever produced by Malossi: over 32 HP at 14,000 RPM. With its large displacement, this kit is exclusively for liquid-cooled motorcycles. Specifically designed for top-level racing, it features the latest evolution of Malossi’s iconic 7-port technology. The standout feature is the support provided to the main rear transfer ports through the use of two ports opposite the exhaust. The cylinder has a close deck structure paired with a redesigned modular head. The head is designed to enter the cylinder’s combustion chamber, safeguarding the nickel coating in case of…

After being a protagonist for 30 years, the everlasting Ø 61 cast-iron cylinder kit, art. 31 4093, updates! Constantly refined over the years, the legendary Ø 61 has now a new code, after undergoing further upgrade concerning above all the main and rear transfer ports. It is the one and only cylinder kit of its kind using an o-ring as sealing gasket between head and cylinder, in order to guarantee better sealing and heat dissipation. By improving torque at low RPMs, this cylinder kit further increases performance. With this development Malossi technicians went beyond all expectations once…

Cylinder Material: special self-lubricating, wear-resistant, highly refined cast iron alloys, obtained by Shell Moulding gravity die-casting. Machining: on numerically controlled high precision machine tools. Recalculated and increased heat exchange surfaces. Exhaust and transfer ports designed and tuned for maximum thermodynamic performance. Dimensional and surface finish quality control performed according to Malossi's internal specifications. Cylinder and piston selected for a 100% fit of 0.010-0.005 mm. Checking of all the seals carried out. Piston Material: special aluminium alloy with…

ALUMINIUM Ø 65 CYLINDER KITS Malossi aluminium cylinder kit: the best balance between component performance and life of the component. The aluminium cylinder kit produced by Malossi s.p.A. is designed and manufactured with the specific objective of obtaining high combustion efficiency, long life, and a reliability that suits the Malossi name. Owing to the experience gained in the preparation of cylinder kits for race, Malossi engineers have developed the thermodynamics of aluminium cylinder kit to the fullest and designed the inner fuid mechanics of the cylinder kit with fanatical precision…

These cylinder kits designed to guarantee maximum performance in this category Technical data bore 65 mm stroke 52 mm capacity 172.5 timing system : 6 transferts

COMPLETE CYLINDER 4-STROKE TECHNICAL FEATURES Cylinder Material: primary aluminium alloy with a high content of hardened and tempered silicon, cylinder liner with silicon carbide coating in a galvanic nickel die and crossed smoothing with two diamond passages with very limited tolerances. Machining: on machine tools with high precision numerical control. Cylinder-piston connection with an allowance of 0.05 mm. Recalculated and upgraded heat exchange surfaces. Piston Ultra compact with 3 rings. Material: special aluminium alloy with high silicon content, low thermal expansion and a tin facing…

VESPA NEVER DIES Aluminium cylinder kit Ø 68,5 Afurther upgrade for the timeless Ø 68.5 cylinder kit! 1983 The aluminium cylinder with 68,5 mm diameter - turning point in Vespa tuning - was born. Made of Nicasil aluminium, with super light piston and 1.2 mm semi trapezoidal rings, it becomes a legend, a real musthave for all Vespa fans. 2008 The cylinder is updated, by adding the head with hemispherical combustion chamber and central spark plug. 2013 The cylinder, always made of Nicasil aluminium, has been completely changed concerning both main and rear ports and exhaust port as well.…

CYLINDER KIT Ø 63 ALUMINIUM completely new cylinder kit has been created, designed overall to obtain the maximum result in terms of performance and durability. Every aspect of the system has been studied to maximise the mechanical resistance, the fluid dynamics and improve combustion: the result is a top-of-the-range kit in terms of construction quality and technological development. TECHNICAL FEATURES Cylinder Built from scratch, in high-strength aluminium alloy and cylinder sleeve with nickel-chromium coating. Consisting of an even thickness central core around the cylinder sleeve and the…

Circlip for shaft, mountable both on Malossi sprocket kit and on the original Piaggio one.

Ultra-hard tempered steel. For original clutch bell and Malossi POWER UP CLUTCH SYSTEM.

Exhaust and Intake valve springs made of Si-Cr oil-tempered and annealed steel, designed to operate optimally under increased loads due to increased engine power.

All Malossi cylinders - both cast-iron and aluminum - are selected by size . The range goes from size 0 (smallest piston) to size D (biggest piston). Every size features an increase of 0.01 mm. When ordering a piston, please carefully specify the requested size marking as follows: Example 34 3448 corresponds to size 0 34 3448.A0 corresponds to size A 34 3448.B0 corresponds to size B 34 3448.C0 corresponds to size C 34 3448.D0 corresponds to size D Only cast-iron cylinders are also available in oversize as follows: 34 3448.40 corresponds to an increase of 0.4 mm 34 3448.80 corresponds to an…

All Malossi cylinders - both cast-iron and aluminum - are selected by size . The range goes from size 0 (smallest piston) to size D (biggest piston). Every size features an increase of 0.01 mm. When ordering a piston, please carefully specify the requested size marking as follows: Example 34 3448 corresponds to size 0 34 3448.A0 corresponds to size A 34 3448.B0 corresponds to size B 34 3448.C0 corresponds to size C 34 3448.D0 corresponds to size D Only cast-iron cylinders are also available in oversize as follows: 34 3448.40 corresponds to an increase of 0.4 mm 34 3448.80 corresponds to an…

All Malossi cylinders - both cast-iron and aluminum - are selected by size . The range goes from size 0 (smallest piston) to size D (biggest piston). Every size features an increase of 0.01 mm. When ordering a piston, please carefully specify the requested size marking as follows: Example 34 3448 corresponds to size 0 34 3448.A0 corresponds to size A 34 3448.B0 corresponds to size B 34 3448.C0 corresponds to size C 34 3448.D0 corresponds to size D Only cast-iron cylinders are also available in oversize as follows: 34 3448.40 corresponds to an increase of 0.4 mm 34 3448.80 corresponds to an…

All Malossi cylinders - both cast-iron and aluminum - are selected by size . The range goes from size 0 (smallest piston) to size D (biggest piston). Every size features an increase of 0.01 mm. When ordering a piston, please carefully specify the requested size marking as follows: Example 34 3448 corresponds to size 0 34 3448.A0 corresponds to size A 34 3448.B0 corresponds to size B 34 3448.C0 corresponds to size C 34 3448.D0 corresponds to size D Only cast-iron cylinders are also available in oversize as follows: 34 3448.40 corresponds to an increase of 0.4 mm 34 3448.80 corresponds to an…

All Malossi cylinders - both cast-iron and aluminum - are selected by size . The range goes from size 0 (smallest piston) to size D (biggest piston). Every size features an increase of 0.01 mm. When ordering a piston, please carefully specify the requested size marking as follows: Example 34 3448 corresponds to size 0 34 3448.A0 corresponds to size A 34 3448.B0 corresponds to size B 34 3448.C0 corresponds to size C 34 3448.D0 corresponds to size D Only cast-iron cylinders are also available in oversize as follows: 34 3448.40 corresponds to an increase of 0.4 mm 34 3448.80 corresponds to an…

All Malossi cylinders - both cast-iron and aluminum - are selected by size . The range goes from size 0 (smallest piston) to size D (biggest piston). Every size features an increase of 0.01 mm. When ordering a piston, please carefully specify the requested size marking as follows: Example 34 3448 corresponds to size 0 34 3448.A0 corresponds to size A 34 3448.B0 corresponds to size B 34 3448.C0 corresponds to size C 34 3448.D0 corresponds to size D Only cast-iron cylinders are also available in oversize as follows: 34 3448.40 corresponds to an increase of 0.4 mm 34 3448.80 corresponds to an…

All Malossi cylinders - both cast-iron and aluminum - are selected by size . The range goes from size 0 (smallest piston) to size D (biggest piston). Every size features an increase of 0.01 mm. When ordering a piston, please carefully specify the requested size marking as follows: Example 34 3448 corresponds to size 0 34 3448.A0 corresponds to size A 34 3448.B0 corresponds to size B 34 3448.C0 corresponds to size C 34 3448.D0 corresponds to size D Only cast-iron cylinders are also available in oversize as follows: 34 3448.40 corresponds to an increase of 0.4 mm 34 3448.80 corresponds to an…

All Malossi cylinders - both cast-iron and aluminum - are selected by size . The range goes from size 0 (smallest piston) to size D (biggest piston). Every size features an increase of 0.01 mm. When ordering a piston, please carefully specify the requested size marking as follows: Example 34 3448 corresponds to size 0 34 3448.A0 corresponds to size A 34 3448.B0 corresponds to size B 34 3448.C0 corresponds to size C 34 3448.D0 corresponds to size D Only cast-iron cylinders are also available in oversize as follows: 34 3448.40 corresponds to an increase of 0.4 mm 34 3448.80 corresponds to an…

All Malossi cylinders - both cast-iron and aluminum - are selected by size . The range goes from size 0 (smallest piston) to size D (biggest piston). Every size features an increase of 0.01 mm. When ordering a piston, please carefully specify the requested size marking as follows: Example 34 3448 corresponds to size 0 34 3448.A0 corresponds to size A 34 3448.B0 corresponds to size B 34 3448.C0 corresponds to size C 34 3448.D0 corresponds to size D Only cast-iron cylinders are also available in oversize as follows: 34 3448.40 corresponds to an increase of 0.4 mm 34 3448.80 corresponds to an…

All Malossi cylinders - both cast-iron and aluminum - are selected by size . The range goes from size 0 (smallest piston) to size D (biggest piston). Every size features an increase of 0.01 mm. When ordering a piston, please carefully specify the requested size marking as follows: Example 34 3448 corresponds to size 0 34 3448.A0 corresponds to size A 34 3448.B0 corresponds to size B 34 3448.C0 corresponds to size C 34 3448.D0 corresponds to size D Only cast-iron cylinders are also available in oversize as follows: 34 3448.40 corresponds to an increase of 0.4 mm 34 3448.80 corresponds to an…

All Malossi cylinders - both cast-iron and aluminum - are selected by size . The range goes from size 0 (smallest piston) to size D (biggest piston). Every size features an increase of 0.01 mm. When ordering a piston, please carefully specify the requested size marking as follows: Example 34 3448 corresponds to size 0 34 3448.A0 corresponds to size A 34 3448.B0 corresponds to size B 34 3448.C0 corresponds to size C 34 3448.D0 corresponds to size D Only cast-iron cylinders are also available in oversize as follows: 34 3448.40 corresponds to an increase of 0.4 mm 34 3448.80 corresponds to an…

All Malossi cylinders - both cast-iron and aluminum - are selected by size . The range goes from size 0 (smallest piston) to size D (biggest piston). Every size features an increase of 0.01 mm. When ordering a piston, please carefully specify the requested size marking as follows: Example 34 3448 corresponds to size 0 34 3448.A0 corresponds to size A 34 3448.B0 corresponds to size B 34 3448.C0 corresponds to size C 34 3448.D0 corresponds to size D Only cast-iron cylinders are also available in oversize as follows: 34 3448.40 corresponds to an increase of 0.4 mm 34 3448.80 corresponds to an…

All Malossi cylinders - both cast-iron and aluminum - are selected by size . The range goes from size 0 (smallest piston) to size D (biggest piston). Every size features an increase of 0.01 mm. When ordering a piston, please carefully specify the requested size marking as follows: Example 34 3448 corresponds to size 0 34 3448.A0 corresponds to size A 34 3448.B0 corresponds to size B 34 3448.C0 corresponds to size C 34 3448.D0 corresponds to size D Only cast-iron cylinders are also available in oversize as follows: 34 3448.40 corresponds to an increase of 0.4 mm 34 3448.80 corresponds to an…

All Malossi cylinders - both cast-iron and aluminum - are selected by size . The range goes from size 0 (smallest piston) to size D (biggest piston). Every size features an increase of 0.01 mm. When ordering a piston, please carefully specify the requested size marking as follows: Example 34 3448 corresponds to size 0 34 3448.A0 corresponds to size A 34 3448.B0 corresponds to size B 34 3448.C0 corresponds to size C 34 3448.D0 corresponds to size D Only cast-iron cylinders are also available in oversize as follows: 34 3448.40 corresponds to an increase of 0.4 mm 34 3448.80 corresponds to an…

All Malossi cylinders - both cast-iron and aluminum - are selected by size . The range goes from size 0 (smallest piston) to size D (biggest piston). Every size features an increase of 0.01 mm. When ordering a piston, please carefully specify the requested size marking as follows: Example 34 3448 corresponds to size 0 34 3448.A0 corresponds to size A 34 3448.B0 corresponds to size B 34 3448.C0 corresponds to size C 34 3448.D0 corresponds to size D Only cast-iron cylinders are also available in oversize as follows: 34 3448.40 corresponds to an increase of 0.4 mm 34 3448.80 corresponds to an…

All Malossi cylinders - both cast-iron and aluminum - are selected by size . The range goes from size 0 (smallest piston) to size D (biggest piston). Every size features an increase of 0.01 mm. When ordering a piston, please carefully specify the requested size marking as follows: Example 34 3448 corresponds to size 0 34 3448.A0 corresponds to size A 34 3448.B0 corresponds to size B 34 3448.C0 corresponds to size C 34 3448.D0 corresponds to size D Only cast-iron cylinders are also available in oversize as follows: 34 3448.40 corresponds to an increase of 0.4 mm 34 3448.80 corresponds to an…

All Malossi cylinders - both cast-iron and aluminum - are selected by size . The range goes from size 0 (smallest piston) to size D (biggest piston). Every size features an increase of 0.01 mm. When ordering a piston, please carefully specify the requested size marking as follows: Example 34 3448 corresponds to size 0 34 3448.A0 corresponds to size A 34 3448.B0 corresponds to size B 34 3448.C0 corresponds to size C 34 3448.D0 corresponds to size D Only cast-iron cylinders are also available in oversize as follows: 34 3448.40 corresponds to an increase of 0.4 mm 34 3448.80 corresponds to an…

All Malossi cylinders - both cast-iron and aluminum - are selected by size . The range goes from size 0 (smallest piston) to size D (biggest piston). Every size features an increase of 0.01 mm. When ordering a piston, please carefully specify the requested size marking as follows: Example 34 3448 corresponds to size 0 34 3448.A0 corresponds to size A 34 3448.B0 corresponds to size B 34 3448.C0 corresponds to size C 34 3448.D0 corresponds to size D Only cast-iron cylinders are also available in oversize as follows: 34 3448.40 corresponds to an increase of 0.4 mm 34 3448.80 corresponds to an…

All Malossi cylinders - both cast-iron and aluminum - are selected by size . The range goes from size 0 (smallest piston) to size D (biggest piston). Every size features an increase of 0.01 mm. When ordering a piston, please carefully specify the requested size marking as follows: Example 34 3448 corresponds to size 0 34 3448.A0 corresponds to size A 34 3448.B0 corresponds to size B 34 3448.C0 corresponds to size C 34 3448.D0 corresponds to size D Only cast-iron cylinders are also available in oversize as follows: 34 3448.40 corresponds to an increase of 0.4 mm 34 3448.80 corresponds to an…

All Malossi cylinders - both cast-iron and aluminum - are selected by size . The range goes from size 0 (smallest piston) to size D (biggest piston). Every size features an increase of 0.01 mm. When ordering a piston, please carefully specify the requested size marking as follows: Example 34 3448 corresponds to size 0 34 3448.A0 corresponds to size A 34 3448.B0 corresponds to size B 34 3448.C0 corresponds to size C 34 3448.D0 corresponds to size D Only cast-iron cylinders are also available in oversize as follows: 34 3448.40 corresponds to an increase of 0.4 mm 34 3448.80 corresponds to an…

All Malossi cylinders - both cast-iron and aluminum - are selected by size . The range goes from size 0 (smallest piston) to size D (biggest piston). Every size features an increase of 0.01 mm. When ordering a piston, please carefully specify the requested size marking as follows: Example 34 3448 corresponds to size 0 34 3448.A0 corresponds to size A 34 3448.B0 corresponds to size B 34 3448.C0 corresponds to size C 34 3448.D0 corresponds to size D Only cast-iron cylinders are also available in oversize as follows: 34 3448.40 corresponds to an increase of 0.4 mm 34 3448.80 corresponds to an…

All Malossi cylinders - both cast-iron and aluminum - are selected by size . The range goes from size 0 (smallest piston) to size D (biggest piston). Every size features an increase of 0.01 mm. When ordering a piston, please carefully specify the requested size marking as follows: Example 34 3448 corresponds to size 0 34 3448.A0 corresponds to size A 34 3448.B0 corresponds to size B 34 3448.C0 corresponds to size C 34 3448.D0 corresponds to size D Only cast-iron cylinders are also available in oversize as follows: 34 3448.40 corresponds to an increase of 0.4 mm 34 3448.80 corresponds to an…

All Malossi cylinders - both cast-iron and aluminum - are selected by size . The range goes from size 0 (smallest piston) to size D (biggest piston). Every size features an increase of 0.01 mm. When ordering a piston, please carefully specify the requested size marking as follows: Example 34 3448 corresponds to size 0 34 3448.A0 corresponds to size A 34 3448.B0 corresponds to size B 34 3448.C0 corresponds to size C 34 3448.D0 corresponds to size D Only cast-iron cylinders are also available in oversize as follows: 34 3448.40 corresponds to an increase of 0.4 mm 34 3448.80 corresponds to an…

All Malossi cylinders - both cast-iron and aluminum - are selected by size . The range goes from size 0 (smallest piston) to size D (biggest piston). Every size features an increase of 0.01 mm. When ordering a piston, please carefully specify the requested size marking as follows: Example 34 3448 corresponds to size 0 34 3448.A0 corresponds to size A 34 3448.B0 corresponds to size B 34 3448.C0 corresponds to size C 34 3448.D0 corresponds to size D Only cast-iron cylinders are also available in oversize as follows: 34 3448.40 corresponds to an increase of 0.4 mm 34 3448.80 corresponds to an…

All Malossi cylinders - both cast-iron and aluminum - are selected by size . The range goes from size 0 (smallest piston) to size D (biggest piston). Every size features an increase of 0.01 mm. When ordering a piston, please carefully specify the requested size marking as follows: Example 34 3448 corresponds to size 0 34 3448.A0 corresponds to size A 34 3448.B0 corresponds to size B 34 3448.C0 corresponds to size C 34 3448.D0 corresponds to size D Only cast-iron cylinders are also available in oversize as follows: 34 3448.40 corresponds to an increase of 0.4 mm 34 3448.80 corresponds to an…

All Malossi cylinders - both cast-iron and aluminum - are selected by size . The range goes from size 0 (smallest piston) to size D (biggest piston). Every size features an increase of 0.01 mm. When ordering a piston, please carefully specify the requested size marking as follows: Example 34 3448 corresponds to size 0 34 3448.A0 corresponds to size A 34 3448.B0 corresponds to size B 34 3448.C0 corresponds to size C 34 3448.D0 corresponds to size D Only cast-iron cylinders are also available in oversize as follows: 34 3448.40 corresponds to an increase of 0.4 mm 34 3448.80 corresponds to an…

All Malossi cylinders - both cast-iron and aluminum - are selected by size . The range goes from size 0 (smallest piston) to size D (biggest piston). Every size features an increase of 0.01 mm. When ordering a piston, please carefully specify the requested size marking as follows: Example 34 3448 corresponds to size 0 34 3448.A0 corresponds to size A 34 3448.B0 corresponds to size B 34 3448.C0 corresponds to size C 34 3448.D0 corresponds to size D Only cast-iron cylinders are also available in oversize as follows: 34 3448.40 corresponds to an increase of 0.4 mm 34 3448.80 corresponds to an…

All Malossi cylinders - both cast-iron and aluminum - are selected by size . The range goes from size 0 (smallest piston) to size D (biggest piston). Every size features an increase of 0.01 mm. When ordering a piston, please carefully specify the requested size marking as follows: Example 34 3448 corresponds to size 0 34 3448.A0 corresponds to size A 34 3448.B0 corresponds to size B 34 3448.C0 corresponds to size C 34 3448.D0 corresponds to size D Only cast-iron cylinders are also available in oversize as follows: 34 3448.40 corresponds to an increase of 0.4 mm 34 3448.80 corresponds to an…

All Malossi cylinders - both cast-iron and aluminum - are selected by size . The range goes from size 0 (smallest piston) to size D (biggest piston). Every size features an increase of 0.01 mm. When ordering a piston, please carefully specify the requested size marking as follows: Example 34 3448 corresponds to size 0 34 3448.A0 corresponds to size A 34 3448.B0 corresponds to size B 34 3448.C0 corresponds to size C 34 3448.D0 corresponds to size D Only cast-iron cylinders are also available in oversize as follows: 34 3448.40 corresponds to an increase of 0.4 mm 34 3448.80 corresponds to an…