Description
2Fast alu cylinder 70 Yamaha Aerox
2Fast 70cc Cylinder Kit Minarelli LC - a kit that will impress even the most demanding pilot. It is the only 70cc cylinder by renowned Italian manufacturer 2Fast and is designed to be used with a standard crankshaft and 85mm connecting rod.
Design 2Fast 70cc Racing cylinder
The cylinder is made of top quality aluminium with Nikasil coating and comes with a cylinder head immediately recognizable thanks to its trademark anodized blue cover. On the technical side, the cylinder has 6 transfer ports and a bridged exhaust port and comes with a modular cylinder head and a single-ring piston with a 12mm pin.
2Fast put a lot of thinking and effort in recalculating port timings and redesigning transfer port layout resulting in stand-out performance in this category; in combination with the right components (28mm carburetor, digital internal rotor ignition and Hyper Racing exhaust), this cylinder kit can reach 22 to 24hp. Definitely one of the most powerful kits in the 70cc "Hyper Racing" class!
Specifications 2Fast Aluminium Racing cylinder kit:
- aluminium cylinder 39.3mm stroke / 85mm connecting rod, 6 transfer ports
- bridged exhaust
- aluminium cylinder head with 2mm clearance
- 1-ring piston 47.6mm, 12mm piston pin
- 2 screws
- compression 1:15:8
Attention: As with many high-end cylinders, it is necessary to mill the crankcase to open it a bit.
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 range high end icon](https://sbd.etailercdn.de/media/thumbs/640767_5815206.png)
Tuning Level: High End 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.
High End Racing products are exclusively designed for racing and should only be handled by tuning pros with the appropriate technical know-how. High-end racing parts often require modifications or machining of certain elements to accommodate the often larger components (larger crank webs, larger intake, etc.). Whether you stick with 50cc or increase the displacement, high-end racing parts offer much higher performance than the original parts and are the most powerful tuning parts.
Note: To ensure the reliability of the engine, it is important that the parts are compatible and that you do regular maintenance on your two-wheeler.
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.