
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 |
| Nominal diameter | 40 mm |
| Ø outside piston (A) | 39.97 mm |
| Ø piston pin (B) | 12 mm |
| Compression height (C) | 27.9 mm |
| Curvature (D) | 4 mm |
| Total piston height (E) | 52 mm |
| Number of piston rings (F) | 2 pcs |
| Piston ring mold | Rectangular ring |
| 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 · Material: Steel · Surface: burnished · Diameter: 10 mm · Diameter: 12 mm · Diameter: 14 mm · Number of components: 7 pcs · Total length: 130 mm · Width across flats: 10 mm · Width across flats: 17 mm · Area of application: (Dis)assembly tool
EUR 24.40
EUR 21.90
Meteor piston 40 mm "G" (A8103) | Beta 521 & 512
Nominal diameter: 40 mm · 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 · Piston ring mold: Rectangular ring · Piston ring impact: Flank safety device (FS) · Piston ring height: 1.5 mm · Ø piston pin (B): 12 mm · Weight piston kit: 83 g
EUR 91.80
Meteor piston 40 mm "V" (A8105) | Beta 521 & 512
Nominal diameter: 40 mm · Manufacturer: Meteor · Ø outside piston (A): 39.93 mm · Compression height (C): 27.9 mm · Curvature (D): 4 mm · Total piston height (E): 52 mm · Number of piston rings (F): 2 pcs · Piston ring mold: Rectangular ring · Piston ring impact: Internal fuse (IS) · Piston ring height: 1.5 mm · Ø piston pin (B): 12 mm · Weight piston kit: 83 g
EUR 91.80
Not in stock
Meteor piston 40 mm "N" (A8104) | Beta 521 & 512
Nominal diameter: 40 mm · Manufacturer: Meteor · Surface: blank · Ø outside piston (A): 39.94 mm · Compression height (C): 28 mm · Curvature (D): 4 mm · Total piston height (E): 52 mm · Number of piston rings (F): 2 pcs · Piston ring mold: Rectangular ring · Piston ring impact: Internal fuse (IS) · Piston ring height: 1.5 mm · Thick piston ring: 1.7 mm · Ø piston pin (B): 12 mm · Weight piston kit: 83 g
EUR 91.80
Explore categories from Piston
Moped fans also bought
Union pedals plastic standard
Manufacturer: Union · Material: Plastic · Material: Steel · Surface: rubberized · Color: black · Width: 77 mm · Thread type: FG14.3 (9/16" 20G) · Height: 29 mm · Total length: 129 mm · Width across flats: 15 mm · Reflectors: Yes · Drive: Hexagon socket · Drive: Outer edge
EUR 15.80
ESJOT sprocket 12 teeth | Beta 521 & 512 (A8311)
Chain pitch: 1/2" x 3/16" · Chain type: 415H · Manufacturer: ESJOT · Material: Steel · Surface: varnished · Recording type: Cone mounting · Ø inside: 14.6 mm · Number of teeth: 12 pcs · Thickness: 4.4 mm · Total thickness: 13 mm · Thread type: MF24x1.5 (fine pitch thread)
EUR 36.20
swiing® revival gasket set | Pony / Cilo Beta 521
Manufacturer: swiing® revival parts · Material: Copper · Material: Sealing carton · Material: Sealing paper · Ø outlet inside: 21.6 mm · Hole spacing inlet: 35 mm · Hole pattern [mm]: 48 x 48 · Number of components: 10 pcs · Hole spacing outlet: 38 mm · Area of application: Standard · Decompressor: Yes
EUR 36.20










