• Malossi 318520 Cast Iron Cylinder Kit Ø 40 mm Pin Ø 12
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Malossi 318520 Cast Iron Cylinder Kit Ø 40 mm Pin Ø 12

Malossi 318520 Cast Iron Cylinder Kit Ø 40 mm Pin Ø 12

€204,81 EUR
€204,81 EUR
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Malossi cast iron thermal units represent the premier choice for stepping up your scooter's engine performance while retaining standard or homologated exhaust configurations. Crafted with exceptional durability, this cylinder kit is engineered to integrate seamlessly into everyday urban and sport riding environments.

Featuring 6 transfer ports and a 2-ring piston assembly, each kit maintains strict manufacturing standards with cylinder-piston clearances held to a maximum tolerance of 20 microns. It delivers a reliable power output of 6-7 hp at 9,000 rpm when paired with 17-19 mm carburettors.

Key Features

Brand Malossi
Product Type Cylinder Kit
Material Cast Iron
Bore Diameter 40 mm
Gudgeon Pin Diameter 12 mm
Engine Type 2-Stroke
Transfer Ports 6
Intended Use Urban/Sport
Power Output 6-7 cv @ 9,000 rpm
Recommended Carburettor Ø 17-19 mm
Manufacturing Tolerance Max 20 microns
Weight 2.2 kg

Highlights

  • Durable cast iron cylinder construction with 6 transfer ports
  • Matched 2-ring piston with Ø 12 mm gudgeon pin
  • Tight manufacturing tolerance within 20 microns
  • Optimised for urban and sport applications with standard or approved exhausts

Compatibility

Manufacturer Model
APRILIA APRILIA MOJITO CUSTOM 50 2T
APRILIA APRILIA SCARABEO CLASSIC 50 2T euro 4 2018-> (CA91M)
APRILIA APRILIA SCARABEO STREET 50 2T (PIAGGIO)
APRILIA APRILIA SCARABEO STREET 50 2T euro 4 2018-> (CA91M)
APRILIA APRILIA SPORTCITY ONE STREET 50 2T euro 2
APRILIA APRILIA SR MOTARD 50 2T euro 2
APRILIA APRILIA SR MOTARD 50 2T euro 4 2018-> (CA41M)
DERBI DERBI ATLANTIS - BULLET 50 2T 2003->
DERBI DERBI VARIANT Sport 50 2T
GILERA GILERA EASY MOVING 50 2T
GILERA GILERA ICE 50 2T
GILERA GILERA STORM 50 2T
GILERA GILERA STALKER 50 2T
GILERA GILERA TYPHOON 50 2T
GILERA GILERA TYPHOON X 50 2T
ITALJET ITALJET JET SET 50 2T
ITALJET ITALJET TORPEDO NEW 50 2T
PIAGGIO PIAGGIO DIESIS 50 2T
PIAGGIO PIAGGIO NRG EXTREME 50 2T
PIAGGIO PIAGGIO FLY 50 2T
PIAGGIO PIAGGIO FREE 50 2T
PIAGGIO PIAGGIO LIBERTY 50 2T
PIAGGIO PIAGGIO NRG MC3 DT 50 2T
PIAGGIO PIAGGIO NRG Power DT 50 2T (C453M)
PIAGGIO PIAGGIO SFERA RESTYLING 50 2T
PIAGGIO PIAGGIO SFERA 50 2T
PIAGGIO PIAGGIO TYPHOON 50 2T 2007->2010
PIAGGIO PIAGGIO TYPHOON 50 2T euro 2 2011->2017 (C421M)
PIAGGIO PIAGGIO TYPHOON 50 2T euro 4 2018-> (CA41M)
PIAGGIO PIAGGIO ZIP Fast Rider 50 2T
PIAGGIO PIAGGIO ZIP 50 2T 2000-> (C25EM)
PIAGGIO PIAGGIO ZIP 50 2T <-1999
VESPA VESPA ET2 50 2T 2000->
VESPA VESPA ET2 50 2T <-1999
VESPA VESPA LX 50 2T
VESPA VESPA Primavera 50 2T euro 2 (C533M)
VESPA VESPA S 50 2T euro 2 (C381M)
VESPA VESPA Sprint 50 2T euro 2

What's included

SKU Name
117570 Complete cylinder gasket set Ø 40-47-47,6
193298e 2 M studs 6x18 (UNI 5911) for exhasut system
233818 Pin Ø 12x08x33 for piston
277054.c0 6 VL11 and original valve carbon fibre petals with thickness 0,30/0,35/0,40
318519 Cast-iron cylinder Ø 40
348538 Piston 2T Ø 40 with pin Ø 12 and 2 rectangular rings size 0
348538.40 Piston 2T Ø 40.4 with pin Ø 12 and 2 rectangular rings
348538.80 Piston 2T Ø 40.8 with pin Ø 12 and 2 rectangular rings
348538.a0 Piston 2T Ø 40 with pin Ø 12 and 2 rectangular rings size A
348538.b0 Piston 2T Ø 40 with pin Ø 12 and 2 rectangular rings size B
348538.c0 Piston 2T Ø 40 with pin Ø 12 and 2 rectangular rings size C
348538.d0 Piston 2T Ø 40 with pin Ø 12 and 2 rectangular rings size D
348538.e0 Piston 2T Ø 40 with pin Ø 12 and 2 rectangular rings size E
351981.40 2 piston rings Ø 40.4x1.5 rectangular
351981.80 2 piston rings Ø 40.8x1.5 rectangular
3515115 2 rectangular KDN5 piston rings Ø 40x1,5
361806 Pin clip Ø 12x1 G-shaped
387320 Cylinder head Ø 40 aluminium air
6611785b ROLLER BEARING Ø 12x17x16

Downloads

Frequently asked questions

What power output does the Ø 40 mm cylinder kit produce?

It provides a power range of 6-7 cv at 9,000 rpm.

What exhaust setup is compatible with this thermal unit?

It is designed for use with an original or homologated exhaust system.

What carburettor size is recommended for this setup?

A carburettor with a diameter of 17 mm to 19 mm is recommended.

What is the manufacturing clearance tolerance between the cylinder and piston?

The clearance tolerance between the cylinder and piston is strictly maintained within a maximum of 20 microns.

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