Description
Cylinder Kit d.57mm Italkit Sport 140cc Aprilia RS 125cc (engine 122), excellent value for money tuning cylinder for 125cc supermotos with Rotax 122 engine (Aprilia RS 125cc etc.). The cylinder kit includes:
- aluminium cylinder with boost port supported exhaust
- Vertex Piston with 2 rings d.57mm
- cylinder head combustion chamber (HC - high compression)
- cylinder gaskets
More displacement always means more power so raising displacement from 125cc to 140cc will naturally get you a nice increase in performance; this is the version with 2-ring piston, for even more power check the racing kit with 1-ring piston. You don't really have to change any other components to notice the improvement, simply install the new cylinder and go. The cylinder is compatible with Rotax 122 - 123 2-stroke 125cc engines which is used in many different models. Here are some examples:
- Aprilia: AF1 Futura, AF1 Replica, AF1 Sintesi, Europa, MX, Pegaso, Red Rose (with Rotax 122-123 engine), RS, RS Extrema, RX, Sport, SX, Tuareg Rally and Tuareg Wind.
- HM: Dérapage and CRE 125cc
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: 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.
Spare Parts
- Italkit
Cylinder Head d.57mm Italkit 125cc Aprilia RS 125cc (engine 122)84,50 €In stock - Italkit
Piston d.56,95mm (AA) Italkit Sport 125cc Aprilia RS 125cc (engine 122)135,00 €Currently not in stock - Italkit
Piston Ring d.57mm Italkit 125cc Aprilia RS 125cc (engine 122)18,50 €In stock - Italkit
Cylinder Gasket Set d.57mm Italkit 125cc Aprilia RS 125cc (engine 122)20,50 €In stock
