Hot 
High-quality 41 mm cast iron racing cylinder with 57 cc suitable for your moped / moped with Sachs 503 2AL, AAL, 2BL, ABL CH engine.
The GPO Pomodoro racing kit is currently one of the most powerful cylinders on the market and impresses with its high torque in the lower engine speed range, powerful acceleration and constant power delivery right up to high engine speeds. The optimized internal design ensures ideal flow characteristics and enables an efficient supply of the petrol-air mixture, which guarantees an evenly strong power build-up. The result is a tuning cylinder that gives your engine a clearly noticeable increase in power and ensures indescribable, dynamic performance on the road.
Due to the correct angle of the intake port and Ø 19 mm bore, both original and swiing® brand intake manifolds and carburetors fit under the side skirts without the need for adjustments. With a 45 mm diameter cylinder neck, no spindling of the engine case is necessary.
The GPO piston improves intake timing, resulting in higher engine speeds. The edges of all channels are smoothed, which enables optimum mixture flow.
Camouflaged: No · Manufacturer: GPO · Material: Gray cast iron · Displacement: 57 ccm · Crankshaft stroke: 43 mm · Nominal diameter: 41 mm · Ø cylinder neck: 45 mm · Ø Outlet outside: 26 mm · Hole spacing inlet: 32 mm · Outlet type: clamped · Area of application: Tuning, Racing
Manufacturer: GPO · Nominal diameter: 41 mm · Ø outside piston (A): 40.94 mm · Ø piston pin (B): 12 mm · Compression height (C): 28 mm · Curvature (D): 3.2 mm · Total piston height (E): 49.4 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: 1.8 mm · Weight piston kit: 86 g
Manufacturer: GPO · Material: Sealing paper, Sealing carton, Aluminum · Number of components: 3 pcs · Thickness: 0.3 mm, 1 mm · Ø cylinder: 41 mm · Hole spacing inlet: 0 - 32 mm
| Manufacturer | GPO |
| Material | Gray cast iron |
| Area of application | Tuning |
| Displacement | 57 ccm |
| Nominal diameter | 41 mm |
| Crankshaft stroke | 43 mm |
| Ø piston pin (B) | 12 mm |
| Ø cylinder neck | 45 mm |
| Ø Outlet outside | 26 mm |
| Ø outlet inside | 22 mm |
| Ø Inlet inside | 19 mm |
| Thread inlet | M6x1 (standard thread) |
| Hole spacing inlet | 32 mm |
| Hole pattern [mm] | 40 x 60 / 37 x 37 |
| Outlet type | clamped |
| Sachs | 503 - AAL , ABL , 2AL / 2BL |
Accessories & related products
Hot
swiing® revival Stud Bolt, Inlet/Outlet M6x30 (Grade 10.9)
Manufacturer: swiing® revival parts · Material: Steel · Surface: galvanized (blue) · Total length: 30 mm · Thread type: M6x1 (standard thread) · Diameter: 5.95 mm · Nominal diameter (thread): 6 mm · Strength class: 10.9 · Thread length: 12 mm
CHF 1.80
swiing® revival silent blocks Alu Racing | Sachs 503 / 504 / 505 / 535
Manufacturer: swiing® revival parts · Material: Aluminum · Surface: anodized · Ø outside: 21.95 mm · Ø inside: 8.3 mm · Nominal diameter inside: 8.5 mm · Total length: 13 mm · Ø Bundle: 26 mm · Alternative version of the Pony OEM number: A4286 · Alternative version of the Sachs OEM number: 0251 121 000
CHF 23.90
GPO 43 mm "Pomodoro" cylinder kit | Sachs 503 2AL, AAL, 2BL, ABL
Nominal diameter: 43 mm · Manufacturer: GPO · Material: Gray cast iron · Area of application: Tuning · Crankshaft stroke: 43 mm · Displacement: 63 ccm · Ø cylinder neck: 45 mm · Ø outlet inside: 22 mm · Ø Outlet outside: 26 mm · Ø Inlet inside: 19 mm · Hole spacing inlet: 32 mm · Ø piston pin (B): 12 mm · Thread inlet: M6x1 (standard thread) · Outlet type: clamped · Hole pattern [mm]: 40 x 60 / 37 x 37 · Alternative version of the Pony OEM number: A1087 · Alternative version of the Sachs OEM number: 0213 142 000
CHF 219.90
AKOA 41 mm cylinder head for decovalve | Sachs 503 2AL, AAL, 2BL, ABL
Manufacturer: AKOA · Material: Aluminum · Height: 29 mm · Ø outside: 84 mm · Ø cylinder: 41 mm · Hole pattern [mm]: 37 x 37 · Area of application: Tuning · Candle thread: short · Number of fixing points: 4 pcs · Decompressor: M10x1.5
CHF 59.90
Explore categories from Cylinder
Moped fans also bought
NSK BO15 shoulder ball bearing 15/40/10 (A4502)
Bearing type: Shoulder bearing · Bearing cage: Brass cage ball-guided · Stock number: BO15 · Inner ring width: 10 mm · Manufacturer: NSK · Ball bearing closed: No · Material: Brass · Material: Steel · Area of application: Standard · Ø inside: 15 mm · Width: 10 mm · Ø outside: 40 mm · Pony OEM number: A4502 · Sachs OEM no.: 0932 007 001
CHF 24.90
Hot
swiing® ingenious 15 mm carburetor camouflaged | Sachs 503
Manufacturer: swiing® ingenious parts · Material: Aluminum · Camouflaged: Yes · Component group Carburetor: Carburetor complete · Area of application: Tuning · Carburetor type: SRE · Choke control: Hand choke · Nominal diameter: 15 mm · Total length: 66 mm · Nozzle thread: M3.5x0.6 (standard thread) · Ø fuel hose connection: 6 mm · Width: 50 mm · Mounting type: Plug connection clamped · Nozzle size: 62 · Height: 95 mm · Ø Inside entrance: 15 mm · Ø Output inside: 15 mm · Ø Air filter connection: 20 mm · Ø Internal connection: 20 mm · Mixed oil connection: No · Vacuum connection: No · Nozzle block: 2.17 · Clamping screw torque (max.): 4 N/m
CHF 79.90
swiing® revival air filter Racing | Sachs 503
Manufacturer: swiing® revival parts · Camouflaged: No · Material: Plastic · Area of application: Tuning · Color: black · Filter type: Racing screen · Total length: 165 mm · Width: 68 mm · Mounting type: Plug connection clamped · Height: 52 mm · Ø Internal connection: 20 mm
CHF 59.90
swiing® ingenious 15 mm intake manifold long version | Sachs 503 2AL, 2BL
Manufacturer: swiing® ingenious parts · Material: Aluminum · Camouflaged: No · Area of application: Tuning · Total length: 70 mm · Ø inside: 15 mm · Ø External connection: 20 mm · Mounting type: Screws · Number of fixing points: 2 pcs · Thread type: M6x1 (standard thread) · Height flange center hole: 70 mm · Total height: 80 mm · Hole spacing inlet: 32 mm · Pony OEM number: A2176
CHF 59.90
CHF 49.90
GPO piston 40.94 mm | Sachs 502, 50/2, 50/3, 50/4
Manufacturer: GPO · Nominal diameter: 41 mm · Thick piston ring: 1.8 mm · Ø outside piston (A): 40.94 mm · Compression height (C): 28 mm · Curvature (D): 3.2 mm · Total piston height (E): 49.4 mm · Number of piston rings (F): 2 pcs · Piston ring mold: Rectangular ring · Piston ring impact: Internal fuse (IS) · Ø piston pin (B): 12 mm · Piston ring height: 1.5 mm · Weight piston kit: 86 g
CHF 39.90
GPO 41 mm cylinder "Pomodoro" | Sachs 503
Nominal diameter: 41 mm · Manufacturer: GPO · Material: Gray cast iron · Camouflaged: No · Area of application: Racing · Area of application: Tuning · Crankshaft stroke: 43 mm · Displacement: 57 ccm · Ø cylinder neck: 45 mm · Ø Outlet outside: 26 mm · Hole spacing inlet: 32 mm · Outlet type: clamped
CHF 149.90
swiing® ingenious 15 mm intake manifold short version | Sachs 503 2AL, 2BL
Manufacturer: swiing® ingenious parts · Material: Aluminum · Area of application: Tuning · Total length: 50 mm · Ø inside: 15 mm · Ø External connection: 20 mm · Thread type: M6x1 (standard thread) · Hole spacing inlet: 32 mm · Number of fixing points: 2 pcs · Alternative version of the Pony OEM number: A2177
CHF 44.90
CHF 39.90
Working late? Evening hours on Thursday until 20:00
