Description
Airsal Racing Cylinder 70cc Puch Maxi
The Puch Maxi is still a popular base for tuning projects, and Airsal offers the right kit for anyone looking to increase displacement: the 70cc (Ø45mm) Airsal Racing cylinder with extended cooling fins.
This aluminum 70cc cylinder is a true racing upgrade and goes a step beyond the already powerful 65cc version. More displacement means more performance—simple as that. It also features additional transfer ports, which are fed via special holes in the piston.
As always, we recommend rejetting the carburetor or, even better, installing a larger carburetor. A performance exhaust is also a must to unlock the kit’s full potential.
Comes with a single-ring piston, small parts, and gaskets. Cylinder head not included, but the original head can be reused.
Note: There are two versions of Puch Maxi cylinders—one with short, one with long cooling fins. They’re identical in fitment, but for better heat dissipation, the long-fin version is the clear choice for tuning builds.
Specifications Airsal Racing 70cc Puch Maxi
- Displacement: 68.4cc
- Bore: 45mm
- Piston: 1-ring
- Material: Aluminum
- Without cylinder head
- Cooling fins: Long
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
- Puch
Spare Parts Cylinder Puch Automatic (Maxi) - Airsal
Piston d.45mm Airsal Alu 68cc Puch Maxi (big fins)22,00 €In stockSale - Airsal
Piston Ring d.45mm Airsal Alu 68cc Puch Maxi (big fins)2,70 €Currently not in stock - Airsal
Cylinder Gasket Set Airsal Alu 68cc Puch Maxi (big fins)2,70 €In stock - Standard Parts
Cylinder Head 68,4ccm aluminium long fins Puch Maxi / X30 Automatic27,00 €In stock
