
Original cylinder base suitable for the following mopeds / mopeds with Beta 521 engine:
Ø Cylinder: 40.00 mm
Ø Cylinder neck: 45 mm
Ø Exhaust: 21.4 mm
Hole spacing: 48.5 x 48.5 mm
Hole spacing exhaust: 38.5 mm
The piston is not included in the scope of delivery
Original spare part number: A8092
| Nominal diameter | 40 mm |
| Manufacturer | Pony |
| Material | Gray cast iron |
| Area of application | Original |
| Surface | varnished |
| Ø cylinder neck | 45 mm |
| Number of fixing points | 4 pcs |
| Hole spacing | 48.5 mm |
| Outlet type | straight |
| Hole spacing outlet | 38.5 mm |
| Cooling type | Air cooling |
| Camouflaged | No |
| Pony / Cilo (Beta 521 & 512) | Beta 512 Beta 521 (engine) |
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Manufacturer: Meteor · Nominal diameter: 40 mm · Ø outside piston (A): 39.94 mm · Ø piston pin (B): 12 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 · Weight piston kit: 83 g
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GPO Ø 40 mm cylinder head "Original" | Pony GTX, Cross 521 (A8113)
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GPO Ø 40 mm cylinder head "Racing" | Pony GTX, Cross 521 (A8113)
Manufacturer: GPO · Material: Aluminum · Camouflaged: Yes · Surface: varnished · Ø cylinder: 40 mm · Number of fixing points: 4 pcs · Ø screw holder: 6.5 mm · Total length: 120 mm · Hole pattern [mm]: 48 x 48 · Candle thread: short · Width: 108 mm · Alternative version of the Pony OEM number: A8113
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GPO 40 mm cylinder (without piston & gasket set) "Original" | Pony GTX, Cross 521
Manufacturer: GPO · Material: Gray cast iron · Displacement: 50 ccm · Nominal diameter: 40 mm · Ø cylinder neck: 45 mm · Number of fixing points: 4 pcs · Hole spacing for cylinder mounting: 48 mm · Outlet type: straight · Hole spacing outlet: 39 mm · Area of application: Original
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GPO 40 mm cylinder kit (Meteor Edition) "Original" | Pony GTX, Cross 521 (A8092)
Manufacturer: GPO · Material: Gray cast iron · Displacement: 50 ccm · Nominal diameter: 40 mm · Ø cylinder neck: 45 mm · Ø outlet inside: 21.5 mm · Hole pattern [mm]: 48 x 48 · Ø piston pin (B): 12 mm · Outlet type: straight · Hole spacing outlet: 39 mm · Thread outlet: M6x1 (standard thread) · Area of application: Original
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