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High-quality 43 mm tuning set 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 ports are smoothed, which enables optimum mixture flow.
Hole pattern [mm]: 40 x 60 / 37 x 37 · Manufacturer: GPO · Material: Gray cast iron · Displacement: 57 ccm · Nominal diameter: 41 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 · Outlet type: clamped
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
Hole pattern [mm]: 37 x 37 · Manufacturer: AKOA · Material: Aluminum · Ø cylinder: 41 mm · Number of fixing points: 4 pcs · Candle thread: short · Decompressor: No · Height: 30 mm · Area of application: Tuning
Nozzle block: 2.17 · Nozzle size: 62 · Manufacturer: swiing® ingenious parts · Camouflaged: Yes · Material: Aluminum · Carburetor type: SRE · Nominal diameter: 15 mm · Ø Internal connection: 20 mm · Ø Inside entrance: 15 mm · Ø Output inside: 15 mm · Ø Air filter connection: 20 mm · Ø fuel hose connection: 6 mm · Mixed oil connection: No · Vacuum connection: No · Choke control: Hand choke · Nozzle thread: M3.5x0.6 (standard thread) · Mounting type: Plug connection clamped · Clamping screw torque (max.): 4 N/m · Total length: 66 mm · Width: 50 mm · Height: 95 mm · Area of application: Tuning · Component group Carburetor: Carburetor complete
Manufacturer: swiing® revival parts · Camouflaged: No · Color: black · Material: Plastic · Filter type: Racing screen · Total length: 165 mm · Width: 68 mm · Height: 52 mm · Ø Internal connection: 20 mm · Mounting type: Plug connection clamped · Area of application: Tuning
Nozzle size: 54, 56, 58, 60, 62, 64 · Manufacturer: swiing® revival parts · Material: Brass · Quantity: 6 pcs · Carburetor type: SRE, SRA (1/11/35) Velux, SRA (1/11/31) Velux, SRF, SRC · Nozzle type: Main nozzle · Nozzle thread: M3.5x0.6 (standard thread) · Total length: 6 mm · Drive: Slot · Component group Carburetor: Spraying
Manufacturer: swiing® ingenious parts · Material: Steel · Surface: chrome-plated · Color: Chrome · Ø outside: 70 mm · Total length: 730 mm · Ø Internal connection: 28 mm · Exhaust type: Cigar · Mounting type: Screwed clamp
Manufacturer: swiing® ingenious parts · Material: Steel · Surface: chrome-plated · Color: Chrome · Ø inside: 26 mm · Ø outside: 28 mm · Total length: 410 mm · Mounting type: Bride · Flame tube attachment: inserted
Manufacturer: Made in Portugal · Material: Steel · Surface: chrome-plated · Color: Chrome · Nominal diameter: 70 mm · Clamping diameter: 67 - 71 mm · Width: 28 mm · Thickness: 2 mm · Number of fixing points: 1 pcs · Ø mounting hole: 8.2 mm
Manufacturer: swiing® revival parts · Material: Steel · Surface: galvanized (blue) · Ø inside: 26 - 28 mm · Ø outside: 39 mm · Material thickness: 1.5 mm · Width: 42 mm · Mounting type: Nuts & bolts
| Nominal diameter | 43 mm |
| Manufacturer | GPO, swiing® ingenious parts, NGK |
| Material | Gray cast iron |
| Displacement | 57 ccm |
| Sachs | 503 - AAL, ABL, 2AL / 2BL |
Ratings
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GPO sprocket (10-18 teeth, of your choice) | Sachs 502, 503, 504, 505, 535
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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 · Displacement: 63 ccm · Crankshaft stroke: 43 mm · Ø cylinder neck: 45 mm · Ø Outlet outside: 26 mm · Ø outlet inside: 22 mm · Ø Inlet inside: 19 mm · Hole spacing inlet: 32 mm · Thread inlet: M6x1 (standard thread) · Ø piston pin (B): 12 mm · Hole pattern [mm]: 40 x 60 / 37 x 37 · Outlet type: clamped · Alternative version of the Pony OEM number: A1087 · Alternative version of the Sachs OEM number: 0213 142 000
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GPO piston 40.94 mm | Sachs 502, 50/2, 50/3, 50/4
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