Description
Athena, one of the most prestigious brands for two-wheelers, has an extensive range of scooter parts. This is a complete Cylinder Kit Athena Racing 70cc with 10mm piston pin for Minarelli vertical (eg Yamaha BW's / Slider or MBK Booster / Stunt).
The cylinder kit includes the following parts:
- Aluminium cylinder with 5 transfer ports and oval exhaust with boost ports
- Racing piston 47,6mm, 1 piston ring, 10mm piston pin
- Cylinder head, high compression
- Gasket set (cylinder base paper, cylinder head, exhaust and reed valve)
- Reed petals, carbon
- all hardware needed for assembly
The very powerful Athena racing cylinder for Minarelli vertical is not mounted via conventional stud bolts, but via an external mounting system. The cylinder and the cylinder head are fixed individually with 4 bolts each.
Since the actual cylinder is thus no longer subject to the restrictions normally arising from regular studs, ambitious tuners can adjust and optimize both transfer porst and exhaust port here.
The performance of the new Athena Racing 70cc is very convincing, an increase of 3 to 4 hp compared to the previous Racing version is easily possible.
For even more power, but above all for optimum cooling, we recommend the use of a Big Valve MXS Racing HighFlow intake system and a PWK carburator with a minimum diameter of 21 mm.
Note, we recommend to use it with a reinforced crankshaft for 10mm piston pin such as the Stage6 HPC.
- Athena Racing 70cc 10mm piston pin
- Compression ratio: 13,8:1
- Minarelli vertical
- Not homologated / not street legal
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: Racing
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.
Racing products are designed for a more extreme uses and are developed primarily for racing. Whether you stay at 50cc or increase the displacement, the corresponding Racing parts produce much higher performance than the original parts in order to achieve maximum power.
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.
Spare Parts
- Athena
Gasket Set cylinder Athena Racing 70cc Minarelli vertical14,50 €In stock - Athena
Cylinder head Athena Racing 70cc Minarelli vertical38,50 €In stock - Athena
Piston Athena Racing 70cc d.47,6mm (A) piston pin=10mm Minarelli vertical72,50 €In stock - AthenaPiston Athena Racing 70cc d.47,6mm (B) piston pin=10mm Minarelli vertical60,00 €In stock
- AthenaPiston Athena Racing 70cc d.47,6mm (C) piston pin=10mm Minarelli vertical60,00 €Currently not in stock
Le SQUISH reste bien a 0,7 pour ce cylindre ATHÉNA 70cc RAÇING ?