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Stage6 cylinder kit Sport Pro MK 2 70cc
Stage6 Cylinder Kit 70cc Sport Pro MK2 Piaggio LC (Piaggio NRG / Runner etc.). The first generation Sport MK1 cylinders became very popular among scooter tuners, then Stage6 took things to the next level and introduced the successor, the Sport MKII.
For 50cc scooters with Piaggio LC engine such as Piaggio NRG or Gilera Runner.
Design Stage6 MK2 cylinder
The cylinder was completely redesigned; 6 instead of 5 transfer ports ensure optimized cylinder filling. The oval exhaust remained but was optimized as well. The appearance is based on the pentagonal shape of the R/T cylinders. The head is a one-piece unit with cast scavenging canals for better heat dissipation. The piston is a replica of the R/T piston, with a domed piston crown and 0.8 mm thick piston ring to optimise performance and improve thermal stability.
Performance 70cc cylinder MK2 from Stage6
The cylinder delivers 2 to 3 hp more power than the MK1, between 14-17 hp, without any additional modifications and in combination with the corresponding components. Maximum performance and outstanding robustness - we are sure that this cylinder will set new standards in the tuning scene.
We recommend using a reinforced crankshaft, a min. 19mm carburetor and a sport / racing exhaust to exploit the full power of this tuning cylinder.
Installation tips for Stage6 cylinders
We recommend to clean the engine before assembly, check the condition of all components and use a new spark plug and new small end bearing. Do not forget to change your carburetor settings if necessary.
Squish clearance should be between 0.75 and 0.85. The cylinder should be run in for approx. 300 km with a 1:33 mixture to improve robustness and life expectancy.
Attention:
- Original exhausts cannot be mounted with this cylinder.
- The temperature sensor (including thread) may not be longer than 18mm, otherwise it may knock against the cylinder head.WITHOUT HOMOLOGATION (in some countries)
Scope of delivery Stage6 cylinder MK2
- aluminium cylinder, 47.6mm bore
- 1-ring piston with 12mm piston pin
- one-piece cylinder head
- gasket set
Stage6 Sport Pro
The Sport Pro series from Stage6 consists of various CVT components. The variator, clutch, V-belt and complete kit are designed for sport and racing setups.
Stage6 has revised shapes and materials to improve the performance of the CVT compared to the original and to adapt it to the performance increase after installing a sport cylinder.
How to Install a cylinder on a scooter, motorcycle or moped
The cylinder or cylinder kit is the heart of the engine on scooters, motorcycles and mopeds. It consists of a cylinder, a piston with piston ring(s), a cylinder head and gaskets needed for installation.
The service life of a cylinder depends on whether it has been fitted correctly.
Tuning Level: Sport
We categorize our products into different performance levels Original, Sport, Racing and High End , so that our customers can choose the right parts for their setup. It is really important to combine parts that belong to the same tuning level, this is especially true for cylinders, crankshafts and exhausts.
The products listed under Sport yield better performance than Original parts. They may have technical differences, such as the use of higher quality materials, a larger displacement or a performance-enhancing design. They are suitable for everyday use and have a long service life.
Aluminium cylinders
Aluminium cylinders are more powerful than cast iron cylinders, but require more regular maintenance and must be combined with different components such as a reinforced crankshaft and a larger carburetor.
How to run in an aluminium cylinder?
Aluminium cylinders should be run in for about 200 kilometers , and you should use a fully synthetic engine oil.
Note: To ensure optimum performance and reliability, it is advisable to measure the squish clearance. Just have a look at our tutorial How to adjust squish clearance.
Technical detailsCylinder Stage6 70cc Sport Pro MK2 Piaggio LC Article no. S6-7414002 EAN 4051272280047 Weight 1,06 kg Series Sport Pro Brand Stage6 Product type Cylinder kit Tuning level Sport Displacement 70cc Homologation No Piston pin 12 mm Cylinder material Aluminium Bore 47,6 mm Stroke Original Conrod length Standard Spark plug thread M14 long
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