High-quality 43 mm gray cast iron racing cylinder with a displacement of 63 ccm, compatible with your moped equipped with a Sachs 503 2AL, AAL, 2BL, or ABL engine.
The Pomodoro racing cylinder is one of the most powerful cylinders on the market and impresses with high torque at low RPM, powerful acceleration, and consistent power delivery right up to high RPM. The optimized internal design ensures good flow characteristics and enables an efficient supply of the fuel-air mixture, which supports a consistently strong power build-up.
The result is a tuning cylinder that gives your engine a distinctly noticeable power boost and delivers dynamic performance on the road.
Thanks to the correct angle of the intake surface and the 19 mm bore, both original intake manifolds and swiing® brand intake manifolds and carburetors fit under the side guards without requiring any modifications. With a cylinder neck diameter of 45 mm, there is no need to ream out the engine case.
The edges of all channels are smoothed, which allows for optimal fuel-air mixture flow.
Differences between the Pomodoro cylinder and the original BADASS Racing cylinder when combined with a matching GPO piston:
- Either original or swiing® intake manifolds can be installed.
- The BADASS 15 mm and 17 mm intake manifolds cannot be installed.
- The cylinder cannot be adapted to a Sachs 502 or 50/2 engine.
- When used with a matching GPO piston, it achieves a longer intake valve timing compared to the BADASS.
Notes:
The cylinder is shipped loose and without a piston, gasket set, studs, or other mounting parts.
Replace the rubber mounts on Sachs 503 BL engines with aluminum mounts to prevent fatigue fractures at the exhaust flange under increased power output. It is also recommended to use reinforced clutch springs to ensure reliable power transmission. For a further increase in performance, a 32 mm resonance chamber can be installed.
Stud bolts, exhaust, manifolds, and clutch springs are listed under accessories.
Good, affordable standard replacement part. GPO – GOOD PARTS ONLY.
Racing version of the original Sachs and Pony part numbers: 0213 142 000, A1087.
| Manufacturer | GPO |
| Camouflaged | No |
| Material | Gray cast iron |
| Displacement | 63 ccm |
| Crankshaft stroke | 43 mm |
| Ø cylinder neck | 45 mm |
| Ø Outlet outside | 26 mm |
| Area of application | Tuning, Racing |
| Hole spacing for cylinder mounting | 44 mm |
| Number of fixing points | 4 pcs |
| Hole spacing inlet | 32 mm |
| 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) · Nominal diameter (thread): 6 mm · Thread length: 12 mm · Diameter: 5.95 mm · Strength class: 10.9
CHF 1.80
swiing® ingenious exhaust manifold 32 mm chrome | Sachs 503
Manufacturer: swiing® ingenious parts · Material: Steel · Surface: chrome-plated · Color: Chrome · Ø inside: 26.3 mm · Ø External connection: 29 mm · Ø inside: 29.8 mm · Total length: 435 mm · Ø outside: 32.4 mm · Mounting type: Bride
CHF 44.90
Not in stock
Hot
swiing® ingenious cigar Ø 32 / 70 mm chrome (reso exhaust)
Manufacturer: swiing® ingenious parts · Material: Steel · Surface: chrome-plated · Color: Chrome · Total length: 730 mm · Ø outside: 70 mm · Ø Silencer: 70 mm · Mounting type: Screwed clamp · Exhaust type: Cigar · Ø Internal connection: 32 mm
CHF 99.90
GPO piston 43 mm | Sachs 50/2, 50/3, 50/4
Manufacturer: GPO · Ø outside piston (A): 42.94 mm · Compression height (C): 27.7 mm · Curvature (D): 2.4 mm · Total piston height (E): 50.2 mm · Number of piston rings (F): 2 pcs · Nominal diameter: 43 mm · Piston ring mold: Rectangular ring · Piston ring impact: Internal fuse (IS) · Piston ring height: 1.5 mm · Thick piston ring: 1.8 mm · Ø piston pin (B): 12 mm
CHF 44.90
AKOA 43 mm cylinder head for decovalve | Sachs 503 2AL, AAL, 2BL, ABL
Manufacturer: AKOA · Material: Aluminum · Height: 29 mm · Ø cylinder: 43 mm · Ø outside: 84 mm · Area of application: Tuning · Candle thread: short · Number of fixing points: 4 pcs · Hole pattern [mm]: 37 x 37 · Decompressor: M10x1.5
CHF 59.90
Explore categories from Cylinder
Moped fans also bought
Hot
swiing® ingenious 15 mm carburetor camouflaged | Sachs 503
Manufacturer: swiing® ingenious parts · Material: Aluminum · Camouflaged: Yes · Component group Carburetor: Carburetor complete · Nominal diameter: 15 mm · Total length: 66 mm · Carburetor type: SRE · Width: 50 mm · Height: 95 mm · Mounting type: Plug connection clamped · Area of application: Tuning · Ø Inside entrance: 15 mm · Ø Output inside: 15 mm · Ø Air filter connection: 20 mm · Ø Internal 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) · Nozzle block: 2.17 · Nozzle size: 62 · Clamping screw torque (max.): 4 N/m
CHF 79.90
swiing® ingenious 15 mm intake manifold long version | Sachs 503 2AL, 2BL
Manufacturer: swiing® ingenious parts · Material: Aluminum · Camouflaged: No · Thread type: M6x1 (standard thread) · Ø inside: 15 mm · Ø External connection: 20 mm · Area of application: Tuning · Number of fixing points: 2 pcs · Total height: 80 mm · Height flange center hole: 70 mm · Hole spacing inlet: 32 mm · Total length: 70 mm · Mounting type: Screws · Pony OEM number: A2176
CHF 59.90
CHF 49.90
swiing® revival silent blocks Alu Racing | Sachs 503 / 504 / 505 / 535
Manufacturer: swiing® revival parts · Ø Bundle: 26 mm · Material: Aluminum · Surface: anodized · Nominal diameter inside: 8.5 mm · Ø inside: 8.3 mm · Total length: 13 mm · Ø outside: 21.95 mm · Alternative version of the Pony OEM number: A4286 · Alternative version of the Sachs OEM number: 0251 121 000
CHF 23.90
GPO piston 43 mm | Sachs 50/2, 50/3, 50/4
Manufacturer: GPO · Ø outside piston (A): 42.94 mm · Compression height (C): 27.7 mm · Curvature (D): 2.4 mm · Total piston height (E): 50.2 mm · Number of piston rings (F): 2 pcs · Nominal diameter: 43 mm · Piston ring mold: Rectangular ring · Piston ring impact: Internal fuse (IS) · Piston ring height: 1.5 mm · Thick piston ring: 1.8 mm · Ø piston pin (B): 12 mm
CHF 44.90
GPO 43 mm "Pomodoro" cylinder kit | Sachs 503 2AL, AAL, 2BL, ABL
Nominal diameter: 43 mm · Manufacturer: GPO · Material: Gray cast iron · 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 · Thread inlet: M6x1 (standard thread) · Hole spacing inlet: 32 mm · Ø piston pin (B): 12 mm · Outlet type: clamped · Hole pattern [mm]: 40 x 60 / 37 x 37 · Area of application: Tuning · Alternative version of the Pony OEM number: A1087 · Alternative version of the Sachs OEM number: 0213 142 000
CHF 219.90
Working late? Evening hours on Thursday until 20:00
