38 mm tuning cylinder with 50 cc displacement and narrow exhaust for your Pony moped / moped with Sachs 503 AB, AC or ADV engine.
The wide-bore racing kit has been heavily reworked compared to the original cylinder. The overflow ducts, the intake and exhaust have been enlarged. There is hardly any visible difference from the outside. In terms of performance, the racing cylinder is designed for the upper engine speeds. Due to the long exhaust timing, a high back pressure is required to exploit the power.
In addition to the piston, piston ring, clips and bolts, the scope of delivery also includes the required gaskets for the base, intake and exhaust. In addition, an O-ring and a reinforced graphite gasket for the cylinder cover are included, which can be used as required. It is still possible to use the original cylinder head.
| Nominal diameter | 38 mm |
| Manufacturer | AKOA |
| Material | Aluminum |
| Surface | varnished, Nickel silicon carbide (colloquially known as Nikasil) |
| Displacement | 50 ccm |
| Crankshaft stroke | 44 mm |
| Ø cylinder neck | 52 mm, 50.5 mm |
| Ø outlet inside | 29 mm |
| Ø Inlet inside | 23.5 mm |
| Thread inlet | M6x1 (standard thread) |
| Hole spacing inlet | 36 mm |
| Ø piston pin (B) | 12 mm |
| Outlet type | slanted |
| Hole spacing outlet | 50.5 mm |
| Thread outlet | M6x1 (standard thread) |
| Hole pattern [mm] | 56 x 56 |
| Decompressor | MF12x1.25 |
| Area of application | Performance |
| Alternative version of the Pony OEM number | A2868 |
| Sachs | 503 - AB , AC , ADV |
Ratings
Accessories & related products
swiing® revival gasket set | Sachs 503 AB, AC wide wall
Manufacturer: swiing® revival parts · Material: Aluminum · Material: Copper · Material: Rubber · Material: Sealing carton · Material: Sealing paper · Ø outlet inside: 24 mm · Number of components: 21 pcs · Hole spacing outlet: 38.5 mm · Hole pattern [mm]: 56 x 56 · Area of application: Standard
EUR 54.20
swiing® revival gasket set | Sachs 503 ADV wide screen Cat.
Manufacturer: swiing® revival parts · Material: Copper · Material: Fiber · Material: Rubber · Material: Sealing carton · Material: Sealing paper · Area of application: Standard · Ø outlet inside: 23.3 mm · Number of components: 15 pcs · Hole spacing inlet: 38 mm · Hole pattern [mm]: 56 x 56 · Decompressor: No
EUR 54.20
AKOA wide wall 38 mm cylinder kit original | Sachs 503 AB, AC, ADV (A2868)
Manufacturer: AKOA · Material: Aluminum · Surface: Nickel silicon carbide (colloquially known as Nikasil) · Surface: varnished · Displacement: 50 ccm · Area of application: Standard · Crankshaft stroke: 44 mm · Nominal diameter: 38 mm · Ø cylinder neck: 50.5 mm · Ø cylinder neck: 52 mm · Ø Outlet outside: 23 mm · Inlet window: 18x7 mm · Thread inlet: M6x1 (standard thread) · Ø outlet inside: 11 mm · Ø outlet inside: 19.5 mm · Ø piston pin (B): 12 mm · Hole spacing outlet: 50.5 mm · Outlet type: slanted · Hole spacing inlet: 36 mm · Thread outlet: M6x1 (standard thread) · Decompressor: MF12x1.25 · Pony OEM number: A2868
EUR 361.70
AKOA intake manifold 20 mm PHBG / CP | Sachs 503 AB, ADV (A5669, A2180)
Manufacturer: AKOA · Material: Aluminum · Ø inside: 20 mm · Ø External connection: 24 mm · Mounting type: Screws · Hole spacing inlet: 36 mm · Alternative version of the Pony OEM number: A2180 · Alternative version of the Pony OEM number: A5669
EUR 60.20
AKOA wide wall 45 mm cylinder kit | Sachs 503 AB, AC, ADV
Nominal diameter: 45 mm · Manufacturer: AKOA · Material: Aluminum · Surface: Nickel silicon carbide (colloquially known as Nikasil) · Surface: varnished · Displacement: 70 ccm · Crankshaft stroke: 44 mm · Ø cylinder neck: 50.5 mm · Ø cylinder neck: 52 mm · Ø outlet inside: 29 mm · Ø Inlet inside: 23.5 mm · Thread inlet: M6x1 (standard thread) · Hole spacing inlet: 36 mm · Ø piston pin (B): 12 mm · Outlet type: slanted · Hole spacing outlet: 50.5 mm · Thread outlet: M6x1 (standard thread) · Decompressor: MF12x1.25 · Area of application: Tuning · Alternative version of the Pony OEM number: A2868
EUR 361.70
AKOA decompressor M12x1.25 wide wall | Sachs 503 AB, AC, ADV (A2942)
Manufacturer: AKOA · Material: Steel · Surface: galvanized (blue) · Area of application: Standard · Thread type: MF12x1.25 (fine pitch thread) · Width across flats: 15 mm · Total length: 66 mm · Thread length: 8 mm · Pony OEM number: A2942
EUR 96.40
Exhaust set cigar Ø 28 / 60 mm chrome | Sachs 503 AB, AC
Material: Steel · Surface: chrome-plated · Ø outside: 28 mm · Color: Chrome · Ø Silencer: 60 mm · Ø Flame tube outside: 28 mm · Exhaust type: Cigar · Mounting type: Plug connection clamped · Flame tube attachment: Plug connection clamped
EUR 138.60
swiing® ingenious gasket outlet Ø 23 mm graphite | Sachs 503 AB, AC
Manufacturer: swiing® ingenious parts · Material: Graphite / Graphite · Material: Steel · Color: gray · Place of use: Outlet · Ø inside: 23 mm · Thickness: 2 mm · Number of fixing points: 2 pcs · Hole spacing: 48.5 - 51.5 mm
EUR 10.70
GPO 15 mm intake manifold SRE | Sachs 503 AB, ADV (A5669, A2180)
Manufacturer: GPO · Material: Aluminum · Ø inside: 15 mm · Ø External connection: 20 mm · Mounting type: Stud bolts & nuts · Hole spacing inlet: 36 mm · Hole pattern [mm]: 36 x 12.5 · Number of fixing points: 4 pcs · Total height: 63 mm · Height flange center hole: 55 mm · Total length: 105 mm · Thread type: M6x1 (standard thread) · Pony OEM number: A2180 · Pony OEM number: A5669
EUR 60.20
Explore categories from Cylinder
Moped fans also bought
Hot 
BERU spark plug connector / 1 kΩ interference suppressed
Manufacturer: BERU · Material: Sheet metal (steel) · Color: silver · Spark plug socket: M4 · Cable available: No · Suppressed: Yes · Resistance: 1000 Ω · Subcategory: Spark plug connector · Ø cable: 5 mm · Ø cable: 7 mm · Pony OEM number: A2099 · Sachs OEM no.: 0265 100 00
EUR 10.60
swiing® revival gearbox cover gasket | Sachs 503 AAL, ABL, AB, AC, ADV, 2AL, 2BL (A1888)
Manufacturer: swiing® revival parts · Material: Sealing paper · Color: sand-colored · Thickness: 0.35 mm · Total length: 200 mm · Number of components: 1 pcs · Width: 130 mm · Number of fixing points: 6 pcs · Pony OEM number: A1888 · Sachs OEM no.: 0250 150 000
EUR 6.50
Hot
swiing® ingenious 15 mm carburetor camouflaged | Sachs 503
Manufacturer: swiing® ingenious parts · Material: Aluminum · Camouflaged: Yes · Component group Carburetor: Carburetor complete · Choke control: Hand choke · Carburetor type: SRE · Nominal diameter: 15 mm · Ø fuel hose connection: 6 mm · Total length: 66 mm · Ø Inside entrance: 15 mm · Ø Internal connection: 20 mm · Ø Output inside: 15 mm · Ø Air filter connection: 20 mm · Width: 50 mm · Height: 95 mm · Mixed oil connection: No · Mounting type: Plug connection clamped · Vacuum connection: No · Nozzle thread: M3.5x0.6 (standard thread) · Area of application: Tuning · Nozzle block: 2.17 · Nozzle size: 62 · Clamping screw torque (max.): 4 N/m
EUR 96.40
AKOA decompressor M12x1.25 wide wall | Sachs 503 AB, AC, ADV (A2942)
Manufacturer: AKOA · Material: Steel · Surface: galvanized (blue) · Area of application: Standard · Thread type: MF12x1.25 (fine pitch thread) · Width across flats: 15 mm · Total length: 66 mm · Thread length: 8 mm · Pony OEM number: A2942
EUR 96.40
Attention: new opening hours from 16.02.2026 & new evening sale on Thursday 17:30-20:00
