41 mm racing cylinder with 55 cc, suitable for Sachs mopeds / mopeds with 503 2AL, AAL, 2BL, ABL CH engines.
Thanks to the additional holes for the cylinder head bolts as well as the two mounts for the blower cover, the cylinder can also be fitted to the Sachs 50/2 and 502 models, in which case the intake and exhaust accessories must be made by yourself.
The large displacement and the huge intake ensure plenty of torque.
The cylinder can be used on both Sachs 50/2 and Sachs 503 mopeds with the original cylinder head, but it should be noted that the pinch point at the narrowest point should be at least 1.5 mm. To ensure optimum operation and thus tease the maximum power out of the cylinder, we recommend using the 41 mm cylinder head from the accessories.
We also recommend using reinforced clutch springs so that the entire engine power can be transferred to the rear wheel. You can find these in the accessories section.
The BADASS 17 mm or 15 mm intake manifold is a perfect match for the cylinder and can be used with either a 15 mm Bing SRE or a 17 mm carburettor.
You can find the intake manifolds, as well as carburetors, in the accessories section.
Details:
- 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 exhaust manifold connection: 26 mm
- incl. Ø 41 mm piston from the Italian manufacturer -GOL-
Differences to the GPO Pomodoro – replica cylinder:
- The BADASS 15 mm & 17 mm intake manifolds fit perfectly on the cylinder
- It is not possible to fit original or swiing® intake manifolds
- Thanks to the holes for the cylinder head and the blower cover, there is the possibility to mount the BADASS 15 mm & 17 mm intake manifold;the possibility of adapting the cylinder to a 50/2 or 502 engine
- Lower intake timing compared to the GPO Pomodoro
Installation instructions in German and the matching piston are included in the scope of delivery.
Attention: It is essential to replace the rubber silencers on 503 BL engines with aluminum silencers due to the increased performance in order to avoid fatigue fracture of the exhaust flange.
The aluminum silentblocs, matching gaskets, reinforced clutch springs and other add-on parts such as intake manifolds, carburettors, exhausts, etc. can be found in the accessories section.
Made by the BADASS brand.
The set includes the following fixed parts:
Hole pattern [mm]: 59 x 40 · Manufacturer: BAD ASS · Material: Gray cast iron · Surface: sandblasted · Displacement: 55 ccm · Crankshaft stroke: 42 mm · Nominal diameter: 41 mm · Ø cylinder neck: 45 mm · Ø Outlet outside: 26 mm · Ø outlet inside: 23 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 · Number of fixing points: 4 pcs · Camouflaged: No · Area of application: Tuning
Details
| Manufacturer | BAD ASS |
| Camouflaged | No |
| Area of application | Tuning |
| Material | Gray cast iron |
| Surface | sandblasted |
| Displacement | 55 ccm |
| Crankshaft stroke | 42 mm |
| Nominal diameter | 41 mm |
| Ø cylinder neck | 45 mm |
| Ø Outlet outside | 26 mm |
| Ø outlet inside | 23 mm |
| Ø Inlet inside | 19 mm |
| Number of fixing points | 4 pcs |
| Thread inlet | M6x1 (standard thread) |
| Ø piston pin (B) | 12 mm |
| Outlet type | clamped |
| Hole pattern [mm] | 40 x 60 / 37 x 37 |
| Hole spacing inlet | 32 mm |
Suitable for the following models
| Sachs | 503 - AAL, ABL, 2AL / 2BL |
Accessories & related products
17 mm Bing SRF carburetor (replica)
Nominal diameter: 17 mm · Material: Aluminum · Area of application: Tuning · Carburetor type: SRF · Mounting type: Plug connection clamped · Width: 64 mm · Height: 117 mm · Total length: 78 mm · Nozzle thread: M4 · Ø Internal connection: 23 mm · Ø Air filter connection: 60 mm · Ø Air filter connection: 64 mm · Ø fuel hose connection: 6 mm · Mixed oil connection: No · Vacuum connection: No · Choke control: Hand choke · Nozzle block: 2.xx · Clamping screw torque (max.): 3 N/m · Clamping screw torque (max.): 4 N/m
78,80 EUR
101,30 EUR
swiing nozzle set M3.5 (58 - 68) Bing SRE, SRA, SRC, SRF
Manufacturer: swiing · Total length: 6 mm · Material: Brass · Quantity: 6 pcs · Carburetor type: SRA (1/11/31) Velux · Carburetor type: SRA (1/11/35) Velux · Carburetor type: SRC · Carburetor type: SRE · Carburetor type: SRF · Nozzle type: Main nozzle · Drive: Slot · Nozzle thread: M3.5 · Nozzle size: 58 · Nozzle size: 60 · Nozzle size: 62 · Nozzle size: 64 · Nozzle size: 66 · Nozzle size: 68
17,90 EUR
swiing® ingenious 15mm tuning set carburetor HG short | Sachs 503
Manufacturer: swiing® ingenious parts · Carburetor type: SRE · Nominal diameter: 15 mm · Ø Internal connection: 20 mm · Ø Inside entrance: 15 mm · Mounting type: Flange · Mounting type: Plug connection clamped · Area of application: Tuning · Ø Output inside: 15 mm · Ø Air filter connection: 20 mm · Ø fuel hose connection: 6 mm · Choke control: Hand choke · Nozzle thread: M3.5 · Camouflaged: Yes · Nozzle size: 62 · Hole spacing inlet: 32 mm · Clamping screw torque (max.): 4 N/m
180,20 EUR
Not in stock
swiing 15 mm carburetor tuning camouflaged | Sachs 503
Manufacturer: swiing · Total length: 66 mm · Area of application: Tuning · Camouflaged: Yes · Material: Aluminum · Width: 50 mm · 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 · Mounting type: Plug connection clamped · Ø fuel hose connection: 6 mm · Mixed oil connection: No · Vacuum connection: No · Choke control: Hand choke · Nozzle thread: M3.5 · Nozzle block: 2.17 · Nozzle size: 62 · Height: 95 mm · Clamping screw torque (max.): 4 N/m
90,10 EUR
swiing® revival air filter Racing | Sachs 503
Manufacturer: swiing® revival parts · Total length: 165 mm · Camouflaged: No · Area of application: Tuning · Material: Plastic · Width: 68 mm · Filter type: Racing screen · Ø Internal connection: 20 mm · Color: black · Mounting type: Plug connection clamped · Height: 52 mm
67,50 EUR
swiing® revival cylinder base gasket cylinder 0.3 mm | Sachs 503
Ø inside: 45 mm · Nominal diameter: 45 mm · Manufacturer: swiing® revival parts · Material: Oiled paper · Area of application: Standard · Ø cylinder: 38 - 40 mm · Thickness: 0.3 mm · Place of use: Cylinder base · Hole pattern [mm]: 60 x 40
3,85 EUR
Not in stock
swiing set exhaust resonance Ø 28 / 70 mm | Sachs 503
Total length: 730 mm · Manufacturer: swiing · Ø outside: 70 mm · Material: Steel · Color: Chrome · Surface: chrome-plated · Mounting type: Screwed clamp · Ø Internal connection: 28 mm · Exhaust type: Cigar · Flame tube attachment: Plug connection clamped
157,70 EUR
swiing® revival silent blocks Alu Racing | Sachs 503 / 504 / 505 / 535
Ø inside: 8.3 mm · Nominal diameter: 8.5 mm · Ø outside: 21.95 mm · Ø Bundle: 26 mm · Manufacturer: swiing® revival parts · Material: Aluminum · Surface: anodized · Total length: 13 mm · Alternative version of the Pony Spare part no.: A4286 · Alternative version of Sachs spare part no.: 0251 121 000
26,90 EUR
GPO piston 40.94 mm | Sachs 502, 50/2, 50/3, 50/4
Nominal diameter: 40 mm · Manufacturer: GPO · 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
45,00 EUR
- 16 %
Hot 
BAD ASS intake manifold 17 mm SRF short version | Sachs 503 2AL, 2BL
Thread type: M6x1 (standard thread) · Manufacturer: BAD ASS · Camouflaged: No · Area of application: Tuning · Material: Aluminum · Ø inside: 17 mm · Ø External connection: 23 mm · Total length: 54 mm · Mounting type: Screws · Total height: 56.5 mm · Height flange center hole: 45 mm · Number of fixing points: 3 pcs · Hole spacing inlet: 32 mm
84,40 EUR
101,30 EUR
Hot
swiing® ingenious 17 mm SRF carburetor tuning camouflaged | Sachs 503, Puch Velux
Manufacturer: swiing® ingenious parts · Total length: 61.5 mm · Area of application: Tuning · Camouflaged: Yes · Material: Aluminum · Width: 47 mm · Surface: blank · Carburetor type: SRE · Nominal diameter: 17 mm · Ø Internal connection: 23 mm · Ø Inside entrance: 17 mm · Ø Output inside: 17.1 mm · Ø Air filter connection: 23 mm · Mounting type: Plug connection clamped · Ø fuel hose connection: 5 mm · Mixed oil connection: No · Vacuum connection: No · Choke control: Hand choke · Nozzle thread: M3.5 · Nozzle block: 2.2 · Nozzle size: 74 · Height: 89 mm · Height: 112 mm · Clamping screw torque (max.): 3 N/m · Clamping screw torque (max.): 4 N/m
135,10 EUR
BAD ASS 17 mm intake manifold (short) Bing SRE | Sachs 503 2AL/2BL
Ø inside: 17.8 mm · Total height: 55 mm · Manufacturer: BAD ASS · Material: Aluminum · Camouflaged: No · Area of application: Tuning · Total length: 65 mm · Mounting type: Stud bolt · Hole spacing inlet: 32 mm · Height flange center hole: 45 mm · Number of fixing points: 2 pcs · Ø External connection: 20 mm
84,40 EUR
101,30 EUR
GPO cylinder gasket set BAD ASS Pandora 41 & 43 mm | Sachs 503, 50/2, 502
Manufacturer: GPO · Material: Oiled paper · Area of application: Tuning · Ø cylinder: 41 mm · Ø cylinder: 43 mm · Hole spacing inlet: 32 mm · Thickness: 0.3 mm · Thickness: 1 mm · Number of components: 2 pcs · Hole pattern [mm]: 60 x 40 mm / 37 x 37 mm
16,20 EUR
Moped fans like you also bought:
NSK BO15 shoulder ball bearing 15/40/10 (A4502)
Bearing type: Shoulder bearing · Stock number: BO15 · Inner ring width: 10 mm · Manufacturer: NSK · Ball bearing closed: No · Bearing cage: Brass cage ball-guided · Area of application: Standard · Material: Brass · Material: Steel · Width: 10 mm · Surface: blank · Ø inside: 15 mm · Ø outside: 40 mm · Pony spare part no.: A4502 · Sachs spare part no.: 0932 007 001
28,10 EUR
swiing 15 mm carburetor tuning camouflaged | Sachs 503
Manufacturer: swiing · Total length: 66 mm · Area of application: Tuning · Camouflaged: Yes · Material: Aluminum · Width: 50 mm · 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 · Mounting type: Plug connection clamped · Ø fuel hose connection: 6 mm · Mixed oil connection: No · Vacuum connection: No · Choke control: Hand choke · Nozzle thread: M3.5 · Nozzle block: 2.17 · Nozzle size: 62 · Height: 95 mm · Clamping screw torque (max.): 4 N/m
90,10 EUR
Gasket set large | Sachs 503 engine
Area of application: Standard · Material: Aluminum · Material: Copper · Material: Fiber · Material: Sealing carton · Material: Sealing paper · Number of components: 14 pcs · Ø outlet inside: 13.3 mm · Hole pattern [mm]: 60 x 40 · Hole spacing inlet: 32 mm
45,00 EUR
- 16 %
Hot
BAD ASS intake manifold 17 mm SRF short version | Sachs 503 2AL, 2BL
Thread type: M6x1 (standard thread) · Manufacturer: BAD ASS · Camouflaged: No · Area of application: Tuning · Material: Aluminum · Ø inside: 17 mm · Ø External connection: 23 mm · Total length: 54 mm · Mounting type: Screws · Total height: 56.5 mm · Height flange center hole: 45 mm · Number of fixing points: 3 pcs · Hole spacing inlet: 32 mm
84,40 EUR
101,30 EUR
BAD ASS 17 mm intake manifold (short) Bing SRE | Sachs 503 2AL/2BL
Ø inside: 17.8 mm · Total height: 55 mm · Manufacturer: BAD ASS · Material: Aluminum · Camouflaged: No · Area of application: Tuning · Total length: 65 mm · Mounting type: Stud bolt · Hole spacing inlet: 32 mm · Height flange center hole: 45 mm · Number of fixing points: 2 pcs · Ø External connection: 20 mm
84,40 EUR
101,30 EUR
GPO cylinder gasket set BAD ASS Pandora 41 & 43 mm | Sachs 503, 50/2, 502
Manufacturer: GPO · Material: Oiled paper · Area of application: Tuning · Ø cylinder: 41 mm · Ø cylinder: 43 mm · Hole spacing inlet: 32 mm · Thickness: 0.3 mm · Thickness: 1 mm · Number of components: 2 pcs · Hole pattern [mm]: 60 x 40 mm / 37 x 37 mm
16,20 EUR
Collection only possible with online purchase and appointment.
