43.5 mm cylinder head suitable for your Cilo Cross, Pony Cross, and GTX moped with a Beta 521 or 512 engine and the corresponding Airsal 43.5 mm racing kit.
The tuning cylinder head impresses with its high-quality workmanship and precise fit. With the 0.5 mm thick Airsal head gasket, the squish edge is only 1.2 mm. Compared to using the racing cylinder with an original head, not only is the combustion chamber geometry optimized by the matching diameter, but combustion is also improved due to the lower squish edge. This leads to greater turbulence in the combustion chamber, which increases power and efficiency.
Note: A spark plug with a long thread is required.
If you want to reduce the compression edge even further, you’ll also find a 0.3 mm-thick gasket among the accessories.
Cylinder head gaskets, the matching racing cylinder, and a carburetor kit can be found in the accessories section.
A good, affordable standard replacement part. GPO – GOOD PARTS ONLY.
Alternative to the original Pony part number: A8113
| Manufacturer | GPO |
| Material | Aluminum |
| Surface | varnished |
| Ø cylinder | 43.5 mm |
| Candle thread | short |
| Number of fixing points | 4 pcs |
| Total length | 120 mm |
| Ø screw holder | 6.5 mm |
| Hole pattern [mm] | 48 x 48 |
| Camouflaged | Yes |
| Width | 108 mm |
| Area of application | Tuning, Racing |
| Alternative version of the Pony OEM number | A8113 |
| Pony / Cilo (Beta 521 & 512) | Beta 512 Beta 521 (engine) |
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GPO gasket 0.5 mm cylinder head Airsal 43.5 mm cylinder | Pony GTX, Cross 521
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