40.0 mm piston with two 1.5 mm rectangular piston rings with internal locking (IS) for Cilo Cross 521 & 512, Pony Cross 521, Pony GTX 521 mopeds / mopeds.
The detailed dimensions of the piston according to the technical drawing can be found in the details. You can also find out about the relevant piston rings, their stems and locking types on the legend in the pictures.
| Manufacturer | Meteor |
| Ø outside piston (A) | 39.95 mm |
| Compression height (C) | 27.9 mm |
| Curvature (D) | 4.15 mm |
| Total piston height (E) | 52 mm |
| Number of piston rings (F) | 2 pcs |
| Nominal diameter | 40 mm |
| Piston ring mold | Rectangular ring |
| Ø piston pin (B) | 12 mm |
| Piston ring impact | Flank safety device (FS) |
| Piston ring height | 1.5 mm |
| Weight piston kit | 83 g |
| Pony / Cilo (Beta 521 & 512) | Beta 512 Beta 521 (engine) |
Accessories & related products
GPO piston pin extractor Ø 10, 12, 14 mm
Manufacturer: GPO · Diameter: 10 mm · Diameter: 12 mm · Diameter: 14 mm · Material: Steel · Surface: burnished · Total length: 130 mm · Width across flats: 10 mm · Width across flats: 17 mm · Area of application: (Dis)assembly tool · Number of components: 7 pcs
CHF 19.90
Explore categories from Piston
Moped fans also bought
swiing® revival Stud Bolt, Inlet/Outlet M6x30 (Grade 10.9)
Thread type: M6x1 (standard thread) · Manufacturer: swiing® revival parts · Material: Steel · Surface: galvanized (blue) · Total length: 30 mm · Diameter: 5.95 mm · Nominal diameter (thread): 6 mm · Thread length: 12 mm · Strength class: 10.9
CHF 1.80
swiing® revival gasket set cylinder original engine | Beta 521, 512
Manufacturer: swiing® revival parts · Area of application: Original · Material: Copper · Material: Sealing carton · Material: Sealing paper · Material: Sheet metal (steel) · Number of components: 3 pcs · Ø cylinder: 40 mm · Ø outlet inside: 22 mm · Hole spacing outlet: 40 mm · Hole pattern [mm]: 48 x 48 mm · Decompressor: Yes
CHF 13.90
Headlight original | Pony Cross, GTX (P8272)
Height: 93 mm · Manufacturer: Pony · Test mark: E2 · Width: 158 mm · Housing material: Plastic · Tension: 12 V · Bulb holder: P26s · Lens material: Plastic · Performance: 15 W · Color: black · Area of application: Standard · Speedometer recording: None · Switch included: No · Depth: 87 mm · Battery operated: No · Mounting type: Screws · Number of fixing points: 2 pcs · Thread size: M5
CHF 79.90
GPO gasket 0.5 mm cylinder head 40 mm cylinder | Pony GTX, Cross 521
Thickness: 0.5 mm · Manufacturer: GPO · Material: Aluminum · Place of use: Cylinder head · Ø inside: 40.5 mm · Nominal diameter: 40 mm · Ø cylinder: 40 mm · Hole pattern [mm]: 48 x 48 · Alternative version of the Pony OEM number: A8098
CHF 2.90
GPO 40 mm cylinder (without piston & gasket set) "original" | Pony GTX, Cross 521
Material: Gray cast iron · Manufacturer: GPO · Number of fixing points: 4 pcs · Displacement: 50 ccm · Nominal diameter: 40 mm · Ø cylinder neck: 45 mm · Area of application: Original · Hole spacing for cylinder mounting: 48 mm · Hole spacing outlet: 39 mm · Outlet type: straight
CHF 89.90
GPO 40 mm cylinder kit (Meteor Edition) "original" | Pony GTX, Cross 521
Nominal diameter: 40 mm · Manufacturer: GPO · Material: Gray cast iron · Displacement: 50 ccm · Ø cylinder neck: 45 mm · Ø outlet inside: 21.5 mm · Ø piston pin (B): 12 mm · Outlet type: straight · Hole spacing outlet: 39 mm · Thread outlet: M6x1 (standard thread) · Hole pattern [mm]: 48 x 48 · Area of application: Original
CHF 149.90
Not in stock
Working late? Evening hours on Thursday until 20:00
