Replacement cylinder suitable for your Cilo Cross, Pony Cross and GTX moped / moped with Beta 521 or 512 engine
.The timing corresponds to the original cylinder. The workmanship is high quality, clean and free from defects.
In addition, the «CH 1.2» marking is present on the cylinder base.
| Surface | blank |
| Manufacturer | GPO |
| Number of fixing points | 4 pcs |
| Area of application | Original |
| Material | Gray cast iron |
| Displacement | 50 ccm |
| Nominal diameter | 40 mm |
| Ø cylinder neck | 45 mm |
| Hole spacing for cylinder mounting | 48 mm |
| Outlet type | straight |
| Hole spacing outlet | 39 mm |
| Pony / Cilo (Beta 521 & 512) | Beta 512 Beta 521 (engine) |
Ratings
Accessories & related products
Meteor piston 40 mm "G" (A8103) | Beta 521 & 512
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) · Nominal diameter: 40 mm · Piston ring height: 1.5 mm · Ø piston pin (B): 12 mm · Weight piston kit: 83 g
87,40 EUR
GPO Ø 40 mm cylinder head "Original" | Pony GTX, Cross 521 (A8113)
Manufacturer: GPO · Material: Aluminum · Surface: varnished · Ø cylinder: 40 mm · Number of fixing points: 4 pcs · Ø screw holder: 6.5 mm · Hole pattern [mm]: 48 x 48 · Candle thread: short · Total length: 120 mm · Width: 108 mm · Pony OEM number: A8113
75,70 EUR
Hot 
GPO Ø 40 mm cylinder head "Racing" | Pony GTX, Cross 521 (A8113)
Total length: 120 mm · Width: 108 mm · Manufacturer: GPO · Material: Aluminum · Camouflaged: Yes · Surface: varnished · Ø cylinder: 40 mm · Ø screw holder: 6.5 mm · Hole pattern [mm]: 48 x 48 · Candle thread: short · Number of fixing points: 4 pcs · Alternative version of the Pony OEM number: A8113
81,60 EUR
GPO gasket 0.3 mm cylinder head Ø 40 mm cylinder | Pony GTX, Cross 521
Manufacturer: GPO · Place of use: Cylinder head · Material: Aluminum · Ø cylinder: 40 mm · Nominal diameter: 40 mm · Ø inside: 40.5 mm · Hole pattern [mm]: 48 x 48 · Thickness: 0.3 mm · Alternative version of the Pony OEM number: A8098
3,40 EUR
GPO gasket 0.5 mm cylinder head Ø 40 mm cylinder | Pony GTX, Cross 521
Manufacturer: GPO · Material: Aluminum · Place of use: Cylinder head · Ø inside: 40.5 mm · Thickness: 0.5 mm · Nominal diameter: 40 mm · Ø cylinder: 40 mm · Hole pattern [mm]: 48 x 48 · Alternative version of the Pony OEM number: A8098
3,40 EUR
GPO 40 mm cylinder kit "Original" | Pony GTX, Cross 521 (A8092)
Nominal diameter: 40 mm · Manufacturer: GPO · Material: Gray cast iron · Surface: blank · 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
174,90 EUR
Not in stock
Explore categories from Cylinder
Moped fans also bought
Meteor piston 40 mm "G" (A8103) | Beta 521 & 512
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) · Nominal diameter: 40 mm · Piston ring height: 1.5 mm · Ø piston pin (B): 12 mm · Weight piston kit: 83 g
87,40 EUR
Meteor piston 40 mm "N" (A8104) | Beta 521 & 512
Nominal diameter: 40 mm · Manufacturer: Meteor · Surface: blank · Thick piston ring: 1.7 mm · 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 · Ø piston pin (B): 12 mm · Weight piston kit: 83 g
87,40 EUR
GPO Ø 40 mm cylinder head "Original" | Pony GTX, Cross 521 (A8113)
Manufacturer: GPO · Material: Aluminum · Surface: varnished · Ø cylinder: 40 mm · Number of fixing points: 4 pcs · Ø screw holder: 6.5 mm · Hole pattern [mm]: 48 x 48 · Candle thread: short · Total length: 120 mm · Width: 108 mm · Pony OEM number: A8113
75,70 EUR
GPO gasket 0.3 mm cylinder head Ø 40 mm cylinder | Pony GTX, Cross 521
Manufacturer: GPO · Place of use: Cylinder head · Material: Aluminum · Ø cylinder: 40 mm · Nominal diameter: 40 mm · Ø inside: 40.5 mm · Hole pattern [mm]: 48 x 48 · Thickness: 0.3 mm · Alternative version of the Pony OEM number: A8098
3,40 EUR
GPO gasket 0.5 mm cylinder head Ø 40 mm cylinder | Pony GTX, Cross 521
Manufacturer: GPO · Material: Aluminum · Place of use: Cylinder head · Ø inside: 40.5 mm · Thickness: 0.5 mm · Nominal diameter: 40 mm · Ø cylinder: 40 mm · Hole pattern [mm]: 48 x 48 · Alternative version of the Pony OEM number: A8098
3,40 EUR
GPO 40 mm cylinder kit "Original" | Pony GTX, Cross 521 (A8092)
Nominal diameter: 40 mm · Manufacturer: GPO · Material: Gray cast iron · Surface: blank · 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
174,90 EUR
Not in stock
Attention: new opening hours from 16.02.2026 & new evening sale on Thursday 17:30-20:00
