High-quality 41 mm gray cast iron racing cylinder with a displacement of 57 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 RPMs, powerful acceleration, and consistent power delivery right up to high RPMs. 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 noticeably greater power output 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, no reaming of the engine case is necessary.
The edges of all channels are smoothed, which enables optimal fuel-air mixture flow.
Differences between the Pomodoro cylinder and the original BADASS Racing cylinder when paired 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 opening duration 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. It is also recommended to use reinforced clutch springs to ensure reliable power transmission. For a further increase in performance, a 32 mm resonance muffler can be installed.
Good, affordable standard replacement part. GPO – GOOD PARTS ONLY.
Racing version of the original Sachs and Pony part number: 0213 142 000, A1087.
| Nominal diameter | 41 mm |
| Manufacturer | GPO |
| Material | Gray cast iron |
| Displacement | 57 ccm |
| Crankshaft stroke | 43 mm |
| Ø cylinder neck | 45 mm |
| Ø Outlet outside | 26 mm |
| Outlet type | clamped |
| Camouflaged | No |
| Area of application | Tuning, Racing |
| Hole spacing inlet | 32 mm |
| Sachs | 503 - AAL , ABL , 2AL / 2BL |
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