Mediterranean 41 mm cast iron racing cylinder with 55 cc for your Sachs moped / moped with 503 2AL, AAL, 2BL, ABL CH engine.
The GPO Pomodoro cylinder kit (Italian for tomato) is the sun-ripened, refreshing alternative to comparable greenhouse racing cylinders. It impresses with its freshness in the lower rev range, powerful acceleration and pulling power, as well as a fruity finish in the upper rev range. The cylinder absorbs more nutrients than original ones, transforming them into juicy, powerful pulp and exuding a tantalizing aroma of oil. A real treat for your engine that fills the streets with passionate flavors.
Details:
- Grey cast iron reproduction cylinder with Ø 41.0 mm bore
- slot-controlled
- Ø 19 mm intake
- optimized Öoverflow channels
- improved timing
- no spindling of the engine housing necessary (Ø cylinder neck 45.0 mm)
- Ø external connection exhaust manifold: 26 mm
- incl. Ø 41 mm GPO piston
Differences to the original BADASS cylinder:
- Original or swiing® intake manifolds can be fitted
- The BADASS 15 mm & 17 mm intake manifolds cannot be fitted
- The cylinder cannot be adapted to a 502 or 50/2 engine
- Higher intake timing vs;higher intake timing compared to the BADASS
Due to the correct angle of the intake surface, both original and swiing® brand intake manifolds and carburettors fit under the side valving without the need for adjustments.
The GPO piston improves intake timing, resulting in higher engine speeds. The edges of all ports are smoothed, which enables optimum mixture flow.
Note: Replace the rubber silentblocs on 503 BL engines with aluminum bladders to avoid exhaust flange fatigue fractures at increased power. Ideally, you should use reinforced clutch springs to ensure that all the vitamins and minerals end up on the plate. For an additional flavor note, you can install a 32 mm resonance pot.
Protect the Pomodoro cylinder from heat with the original Sachs cylinder shield or the Pergola cylinder head in the optionally available accessories. You will also find a suitable swiing® irrigation system and piping there.
Good, inexpensive standard spare part. GPO – GOOD PARTS ONLY, in cooperation with GFO – GOOD FOOD ONLY.
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 · Piston weight: 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
| Material | Gray cast iron |
| Nominal diameter | 41 mm |
| Manufacturer | GPO |
| Displacement | 55 ccm |
| Crankshaft stroke | 43 mm |
| Ø cylinder neck | 45 mm |
| Ø Outlet outside | 26 mm |
| Area of application | Tuning |
| Ø Inlet inside | 19 mm |
| Ø piston pin (B) | 12 mm |
| Ø outlet inside | 22 mm |
| Thread inlet | M6x1 (standard thread) |
| Hole spacing inlet | 32 mm |
| Outlet type | clamped |
| Hole pattern [mm] | 40 x 60 / 37 x 37 |
| Sachs | 503 - AAL, ABL, 2AL / 2BL |
Accessories & related products
Exhaust set "Tuning" Ø 28 / 70 mm chrome | Sachs 503 2AL/2BL
Manufacturer: Made in Portugal · Material: Steel · Surface: chrome-plated · Color: Chrome · Ø outside: 70 mm · Total length: 700 mm · Ø Flame tube outside: 28 mm · Exhaust type: Cigar · Mounting type: Screwed clamp · Flame tube attachment: Plug connection clamped
CHF 99.90
swiing resonance exhaust set Ø 28 / 70 mm | Sachs 503
Manufacturer: swiing · Material: Steel · Surface: chrome-plated · Ø outside: 70 mm · Total length: 730 mm · Color: Chrome · Ø Internal connection: 28 mm · Exhaust type: Cigar · Mounting type: Screwed clamp · Flame tube attachment: Plug connection clamped
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swiing® revival silent blocks Alu Racing | Sachs 503 / 504 / 505 / 535
Material: Aluminum · Surface: anodized · Nominal diameter inside: 8.5 mm · Total length: 13 mm · Manufacturer: swiing® revival parts · Ø outside: 21.95 mm · Ø inside: 8.3 mm · Ø Bundle: 26 mm · Alternative version of the Pony OEM number: A4286 · Alternative version of the Sachs OEM number: 0251 121 000
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GPO 43 mm "Pomodoro" cylinder kit | Sachs 503
Manufacturer: GPO · Material: Gray cast iron · Nominal diameter: 43 mm · Crankshaft stroke: 43 mm · Displacement: 63 ccm · Ø cylinder neck: 45 mm · Ø Outlet outside: 26 mm · Ø Inlet inside: 19 mm · Ø piston pin (B): 12 mm · Thread inlet: M6x1 (standard thread) · Area of application: Tuning · Ø outlet inside: 22 mm · Outlet type: clamped · Hole spacing inlet: 32 mm · Hole pattern [mm]: 40 x 60 / 37 x 37
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Bearing type: Shoulder bearing · Stock number: BO15 · Inner ring width: 10 mm · Manufacturer: NSK · Bearing cage: Brass cage ball-guided · Area of application: Standard · Material: Brass · Material: Steel · Surface: blank · Ø inside: 15 mm · Ø outside: 40 mm · Width: 10 mm · Ball bearing closed: No · Pony OEM number: A4502 · Sachs OEM no.: 0932 007 001
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swiing® ingenious 15 mm carburetor tuning camouflaged | Sachs 503
Total length: 66 mm · Manufacturer: swiing® ingenious parts · Area of application: Tuning · Camouflaged: Yes · Component group Carburetor: Carburetor complete · Material: Aluminum · Carburetor type: SRE · Choke control: Hand choke · Nominal diameter: 15 mm · Nozzle thread: M3.5x0.6 (standard thread) · Ø fuel hose connection: 6 mm · Nozzle size: 62 · Ø Inside entrance: 15 mm · Ø Internal connection: 20 mm · Width: 50 mm · Ø Output inside: 15 mm · Height: 95 mm · Ø Air filter connection: 20 mm · Mixed oil connection: No · Mounting type: Plug connection clamped · Vacuum connection: No · Nozzle block: 2.17 · Clamping screw torque (max.): 4 N/m
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swiing® revival air filter Racing | Sachs 503
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swiing® ingenious 15 mm intake manifold long version | Sachs 503 2AL, 2BL
Material: Aluminum · Manufacturer: swiing® ingenious parts · Camouflaged: No · Ø inside: 15 mm · Ø External connection: 20 mm · Area of application: Tuning · Total length: 70 mm · Height flange center hole: 70 mm · Thread type: M6x1 (standard thread) · Mounting type: Screws · Hole spacing inlet: 32 mm · Total height: 80 mm · Number of fixing points: 2 pcs · Pony OEM number: A2176
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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 · Piston weight: 86 g
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Collection only possible with online purchase and appointment.
