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 |
| Material | Gray cast iron |
| Displacement | 55 ccm |
| Area of application | Tuning |
| Surface | sandblasted |
| Crankshaft stroke | 42 mm |
| Ø piston pin (B) | 12 mm |
| Nominal diameter | 41 mm |
| Ø cylinder neck | 45 mm |
| Ø Outlet outside | 26 mm |
| Camouflaged | No |
| Ø Inlet inside | 19 mm |
| Hole pattern [mm] | 40 x 60 / 37 x 37 |
| Ø outlet inside | 23 mm |
| Thread inlet | M6x1 (standard thread) |
| Number of fixing points | 4 pcs |
| Outlet type | clamped |
| 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)
Material: Aluminum · Area of application: Tuning · Carburetor type: SRF · Nominal diameter: 17 mm · Ø Internal connection: 23 mm · Mounting type: Plug connection clamped · 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 thread: M4x0.7 (standard thread) · Total length: 78 mm · Nozzle block: 2.xx · Width: 64 mm · Height: 117 mm · Clamping screw torque (max.): 3 N/m · Clamping screw torque (max.): 4 N/m
76,10 EUR
swiing nozzle set M3.5 (58 - 68) Bing SRE, SRA, SRC, SRF
Drive: Slot · Manufacturer: swiing · 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 · Nozzle thread: M3.5x0.6 (standard thread) · Total length: 6 mm · Nozzle size: 58 · Nozzle size: 60 · Nozzle size: 62 · Nozzle size: 64 · Nozzle size: 66 · Nozzle size: 68
18,60 EUR
swiing® ingenious 15mm tuning set carburetor HG short | Sachs 503
Manufacturer: swiing® ingenious parts · Camouflaged: Yes · 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 · Choke control: Hand choke · Nozzle thread: M3.5x0.6 (standard thread) · Nozzle size: 62 · Mounting type: Flange · Mounting type: Plug connection clamped · Hole spacing inlet: 32 mm · Clamping screw torque (max.): 4 N/m · Area of application: Tuning
187,40 EUR
Not in stock
swiing 15 mm carburetor tuning camouflaged | Sachs 503
Manufacturer: swiing® ingenious parts · Material: Aluminum · Area of application: Tuning · Total length: 66 mm · Carburetor type: SRE · Width: 50 mm · Nominal diameter: 15 mm · Height: 95 mm · Camouflaged: Yes · 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 · Nozzle block: 2.17 · Nozzle size: 62 · Clamping screw torque (max.): 4 N/m
93,70 EUR
swiing® revival air filter Racing | Sachs 503
Manufacturer: swiing® revival parts · Material: Plastic · Area of application: Tuning · Filter type: Racing screen · Color: black · Camouflaged: No · Ø Internal connection: 20 mm · Mounting type: Plug connection clamped · Total length: 165 mm · Width: 68 mm · Height: 52 mm
70,20 EUR
swiing® revival cylinder base gasket cylinder 0.3 mm | Sachs 503
Ø inside: 45 mm · Manufacturer: swiing® revival parts · Material: Oiled paper · Area of application: Standard · Ø cylinder: 38 - 40 mm · Nominal diameter: 45 mm · Place of use: Cylinder base · Hole pattern [mm]: 60 x 40 · Thickness: 0.3 mm
4,00 EUR
Not in stock
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
164,00 EUR
swiing® revival silent blocks Alu Racing | Sachs 503 / 504 / 505 / 535
Manufacturer: swiing® revival parts · Material: Aluminum · Surface: anodized · Ø inside: 8.3 mm · Nominal diameter inside: 8.5 mm · Total length: 13 mm · Ø Bundle: 26 mm · Ø outside: 21.95 mm · Alternative version of the Pony OEM number: A4286 · Alternative version of the Sachs OEM number: 0251 121 000
28,00 EUR
GPO piston 40.94 mm | Sachs 502, 50/2, 50/3, 50/4
Manufacturer: GPO · Nominal diameter: 40 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
46,80 EUR
Hot 
BAD ASS intake manifold 17 mm SRF short version | Sachs 503 2AL, 2BL
Ø inside: 17 mm · Manufacturer: BAD ASS · Material: Aluminum · Camouflaged: No · Area of application: Tuning · Ø External connection: 23 mm · Mounting type: Screws · Hole spacing inlet: 32 mm · Number of fixing points: 3 pcs · Total height: 56.5 mm · Height flange center hole: 45 mm · Total length: 54 mm · Thread type: M6x1 (standard thread)
87,80 EUR
Hot
swiing® ingenious 17 mm SRF carburetor tuning camouflaged | Sachs 503, Puch Velux
Manufacturer: swiing® ingenious parts · Camouflaged: Yes · Material: Aluminum · 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 · Ø fuel hose connection: 5 mm · Mixed oil connection: No · Vacuum connection: No · Choke control: Hand choke · Nozzle thread: M3.5x0.6 (standard thread) · Nozzle block: 2.2 · Nozzle size: 74 · Mounting type: Plug connection clamped · Clamping screw torque (max.): 3 N/m · Clamping screw torque (max.): 4 N/m · Total length: 61.5 mm · Width: 47 mm · Height: 89 mm · Height: 112 mm · Area of application: Tuning
140,60 EUR
BAD ASS 17 mm intake manifold (short) Bing SRE | Sachs 503 2AL/2BL
Manufacturer: BAD ASS · Camouflaged: No · Area of application: Tuning · Material: Aluminum · Ø inside: 17.8 mm · Ø External connection: 20 mm · Mounting type: Stud bolt · Hole spacing inlet: 32 mm · Number of fixing points: 2 pcs · Total height: 55 mm · Height flange center hole: 45 mm · Total length: 65 mm
87,80 EUR
GPO cylinder gasket set BAD ASS Pandora 41 & 43 mm | Sachs 503, 50/2, 502
Manufacturer: GPO · Material: Oiled paper · Number of components: 2 pcs · Thickness: 0.3 mm · Thickness: 1 mm · Ø cylinder: 41 mm · Ø cylinder: 43 mm · Hole spacing inlet: 32 mm · Hole pattern [mm]: 60 x 40 mm / 37 x 37 mm · Area of application: Tuning
16,90 EUR
Moped fans like you also bought:
NSK BO15 shoulder ball bearing 15/40/10 (A4502)
Ø inside: 15 mm · Bearing cage: Brass cage ball-guided · Ø outside: 40 mm · Stock number: BO15 · Inner ring width: 10 mm · Manufacturer: NSK · Material: Brass · Material: Steel · Area of application: Standard · Bearing type: Shoulder bearing · Surface: blank · Ball bearing closed: No · Width: 10 mm · Pony OEM number: A4502 · Sachs OEM number: 0932 007 001
29,20 EUR
swiing 15 mm carburetor tuning camouflaged | Sachs 503
Manufacturer: swiing® ingenious parts · Material: Aluminum · Area of application: Tuning · Total length: 66 mm · Carburetor type: SRE · Width: 50 mm · Nominal diameter: 15 mm · Height: 95 mm · Camouflaged: Yes · 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 · Nozzle block: 2.17 · Nozzle size: 62 · Clamping screw torque (max.): 4 N/m
93,70 EUR
Hot
BAD ASS intake manifold 17 mm SRF short version | Sachs 503 2AL, 2BL
Ø inside: 17 mm · Manufacturer: BAD ASS · Material: Aluminum · Camouflaged: No · Area of application: Tuning · Ø External connection: 23 mm · Mounting type: Screws · Hole spacing inlet: 32 mm · Number of fixing points: 3 pcs · Total height: 56.5 mm · Height flange center hole: 45 mm · Total length: 54 mm · Thread type: M6x1 (standard thread)
87,80 EUR
BAD ASS 17 mm intake manifold (short) Bing SRE | Sachs 503 2AL/2BL
Manufacturer: BAD ASS · Camouflaged: No · Area of application: Tuning · Material: Aluminum · Ø inside: 17.8 mm · Ø External connection: 20 mm · Mounting type: Stud bolt · Hole spacing inlet: 32 mm · Number of fixing points: 2 pcs · Total height: 55 mm · Height flange center hole: 45 mm · Total length: 65 mm
87,80 EUR
GPO cylinder gasket set BAD ASS Pandora 41 & 43 mm | Sachs 503, 50/2, 502
Manufacturer: GPO · Material: Oiled paper · Number of components: 2 pcs · Thickness: 0.3 mm · Thickness: 1 mm · Ø cylinder: 41 mm · Ø cylinder: 43 mm · Hole spacing inlet: 32 mm · Hole pattern [mm]: 60 x 40 mm / 37 x 37 mm · Area of application: Tuning
16,90 EUR
Collection only possible with online purchase and appointment.
