Blade-cooled 41 mm (55 cc) cylinder kit with 12 mm piston pin, suitable for your Sachs 50, 502, 50/2, 50/3, 50/4 moped / moped.
The timing of the cylinder has been kept rather low, which is characterized by a very nice torque in the lower speed range.
The racing cylinder kit without sealing includes cylinder & piston kit without gaskets.
- Grey cast iron reproduction cylinder with & 41.0 mm bore
- Slot-controlled
- 17x15 mm intake, 31 mm stud spacing
- Optimized overflow channels
- 2-piece outlet
- Improved control times
- No spindling of the engine housing necessary (Ø cylinder neck 46.0 mm)
- Exhaust thread: M40 x 1.5 mm
- Hole pattern for stud bolts: 60 x 40 mm for CH engines
- Pre-drilled hole pattern for stud bolts: 51 x 40 mm for DE engines
- Cylinder head hole pattern: 37 x 37 mm
- Incl. Ø 41 mm piston from the Italian manufacturer -GOL-
Note: Please observe the installation direction when assembling. The piston is inserted with the arrow pointing towards the outlet on the exhaust side.
| Nominal diameter | 41 mm |
| Manufacturer | BAD ASS |
| Material | Gray cast iron |
| Area of application | Tuning |
| Displacement | 55 ccm |
| Crankshaft stroke | 42 mm |
| Ø cylinder neck | 46 mm |
| Surface | raw |
| Ø Outlet outside | 40 mm |
| Ø outlet inside | 28 mm |
| Inlet window | 17 x 15 mm |
| Thread inlet | M5x0.8 (standard thread) |
| Hole spacing inlet | 31 mm |
| Ø piston pin (B) | 12 mm |
| Outlet type | Union nut |
| Thread outlet | MF40x1.5 (fine pitch thread) |
| Hole pattern [mm] | 60 x 40 / 51 x 40 / 37 x 37 |
| Camouflaged | No |
| Number of fixing points | 4 pcs |
| Sachs | 50 (Fahrtwind, 1.25 / 1.5 hp, DE) 502 (Saxonette) - AL , AML 50/2 - L CH (0.8 PS) , ML CH (0.8 PS) , MB (2.6 PS) , MLB (2.6 PS) 50/3 50/4 - MLFB (2.6 PS) , LKH (4.5 PS) |
Ratings
Accessories & related products
swiing® revival stud bolt M5 x 23 inlet (diaphragm) 10.9 | Sachs 50/2 (A3700)
Manufacturer: swiing® revival parts · Material: Steel · Surface: galvanized (blue) · Diameter: 4.9 mm · Total length: 23 mm · Thread type: M5x0.8 (standard thread) · Area of application: Standard · Thread length: 6 mm · Thread length: 12 mm · Pony OEM number: A3700 · Sachs OEM no.: 0640 016 101 · Sachs OEM no.: 0640 016 102
EUR 2.20
EUR 1.80
swiing® revival bolt set cylinder head galvanized | Sachs 503 / 50/2 / 50/3 / 50/4
Drive: External hexagon · Manufacturer: swiing® revival parts · Material: Steel · Surface: galvanized (blue) · Color: silver · Number of components: 12 pcs · Ø shaft: 5.85 mm · Screw head: Hexagon · Shank: Yes · Strength class: 10.9 · Thread type: M6x1 (standard thread) · Shank length: 8 mm · Total length: 34 mm · Thread length: 22 mm · Width across flats: 10 mm · Area of application: Standard
EUR 5.90
swiing® ingenious gasket cylinder head 41 mm | Sachs 503, 502, 50/2, 50/3, 50/4
Manufacturer: swiing® ingenious parts · Material: Aluminum · Nominal diameter: 41 mm · Ø cylinder: 41 mm · Ø inside: 41.7 mm · Place of use: Cylinder head · Thickness: 0.3 mm · Hole pattern [mm]: 37 x 37 · Area of application: Standard
EUR 5.90
swiing® ingenious 41 mm cylinder head tuning | Sachs 50/2, 50/3, 50/4
Manufacturer: swiing® ingenious parts · Material: Aluminum · Surface: sandblasted · Ø cylinder: 41 mm · Width: 95 mm · Ø outside: 98 mm · Total length: 127 mm · Ø screw holder: 19 mm · Height: 50 mm · Number of fixing points: 4 pcs · Hole pattern [mm]: 37 x 37 · Candle thread: long · Area of application: Standard · Decompressor: M10x1.5
EUR 82.60
BAD ASS cylinder head L Ø 41-43 mm | Sachs 502, 50/2, 50/3, 50/4
Manufacturer: BAD ASS · Material: Aluminum · Ø cylinder: 41 - 43 mm · Ø outside: 108 mm · Ø screw holder: 19.3 mm · Number of fixing points: 1 pcs · Number of fixing points: 4 pcs · Hole pattern [mm]: 37 x 37 · Area of application: Tuning · Decompressor: M10x1.5
EUR 180.80
GOL piston 41 mm BAD ASS Pandora | Sachs 503, 50/2, 502
Manufacturer: BAD ASS · Nominal diameter: 41 mm · Ø outside piston (A): 40.94 mm · Compression height (C): 28.1 mm · Curvature (D): 1.7 mm · Total piston height (E): 50.7 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 · Weight piston kit: 92 g
EUR 84.30
GPO cylinder gasket set "Divertimento" & "Diablo" | Sachs 502, 50/2 (CH)
Manufacturer: GPO · Material: Aluminum · Material: Sealing paper · Ø cylinder: 41 mm · Thickness: 0.3 mm · Thickness: 0.4 mm · Thickness: 2.6 mm · Hole spacing inlet: 31 mm · Hole pattern [mm]: 60 x 40 mm / 37 x 37 mm · Number of components: 4 pcs · Area of application: Tuning
EUR 24.00
GPO cylinder gasket set "Divertimento" & "Diablo" | Sachs 50, 50/3, 50/4 (DE)
Manufacturer: GPO · Material: Aluminum · Material: Sealing paper · Ø cylinder: 41 mm · Thickness: 0.3 mm · Thickness: 0.45 mm · Hole spacing inlet: 31 mm · Hole pattern [mm]: 51 x 40 mm / 37 x 37 mm · Number of components: 4 pcs · Area of application: Tuning
EUR 24.00
Explore categories from Cylinder
Moped fans also bought
Carburetor 17 mm Bing SSB 1/17/69 reproduction
Nominal diameter: 17 mm · Material: Aluminum · Camouflaged: No · Component group Carburetor: Carburetor complete · Width: 86 mm · Carburetor type: SSB · Height: 99 mm · Mounting type: Stud bolts & nuts · Hole spacing inlet: 31 mm · Ø fuel hose connection: 6.2 mm · Total length: 116 mm · Mixed oil connection: No · Vacuum connection: Yes · Area of application: Standard · Area of application: Tuning · Choke control: without choke · Nozzle thread: MF7x0.75 (fine pitch thread) · Nozzle size: 76 · Clamping screw torque (max.): 3 N/m · Clamping screw torque (max.): 4 N/m
EUR 96.40
swiing® revival bolt set cylinder head galvanized | Sachs 503 / 50/2 / 50/3 / 50/4
Drive: External hexagon · Manufacturer: swiing® revival parts · Material: Steel · Surface: galvanized (blue) · Color: silver · Number of components: 12 pcs · Ø shaft: 5.85 mm · Screw head: Hexagon · Shank: Yes · Strength class: 10.9 · Thread type: M6x1 (standard thread) · Shank length: 8 mm · Total length: 34 mm · Thread length: 22 mm · Width across flats: 10 mm · Area of application: Standard
EUR 5.90
swiing® revival nozzle set (6 pieces of your choice) Bing SSB | Sachs 502, 50/2, 50/3, 50/4
Manufacturer: swiing® revival parts · Component group Carburetor: Spraying · Material: Brass · Quantity: 6 pcs · Carburetor type: SSB · Nozzle type: Main nozzle · Nozzle size: 40 · Nozzle size: 41 · Nozzle size: 42 · Nozzle size: 43 · Nozzle size: 44 · Nozzle size: 45 · Nozzle size: 46 · Nozzle size: 47 · Nozzle size: 48 · Nozzle size: 49 · Nozzle size: 50 · Nozzle size: 51 · Nozzle size: 52 · Nozzle size: 53 · Nozzle size: 54 · Nozzle size: 55 · Nozzle size: 56 · Nozzle size: 57 · Nozzle size: 58 · Nozzle size: 59 · Nozzle size: 60 · Nozzle size: 61 · Nozzle size: 62 · Nozzle size: 63 · Nozzle size: 64 · Nozzle size: 65 · Nozzle size: 66 · Nozzle size: 67 · Nozzle size: 68 · Nozzle size: 69 · Nozzle size: 70 · Nozzle size: 71 · Nozzle size: 72 · Nozzle size: 73 · Nozzle size: 74 · Nozzle size: 75 · Nozzle size: 76 · Nozzle size: 77 · Nozzle size: 78 · Nozzle size: 79 · Nozzle size: 80 · Nozzle size: 81 · Nozzle size: 82 · Nozzle size: 83 · Nozzle size: 84 · Nozzle size: 85 · Nozzle size: 86 · Nozzle size: 87 · Nozzle size: 88 · Nozzle size: 89 · Nozzle size: 90 · Nozzle size: 91 · Nozzle size: 92 · Nozzle size: 93 · Nozzle size: 94 · Nozzle size: 95 · Nozzle size: 96 · Nozzle size: 97 · Nozzle size: 98 · Nozzle size: 99 · Nozzle size: 100 · Drive: External hexagon · Width across flats: 8 mm
EUR 42.10
Not in stock
swiing® revival carburetor 17 mm Bing SSB 1/17/69
Nominal diameter: 17 mm · Manufacturer: swiing® revival parts · Material: Aluminum · Camouflaged: No · Component group Carburetor: Carburetor complete · Width: 85 mm · Carburetor type: SSB · Mounting type: Flange · Total length: 132 mm · Hole spacing inlet: 31 mm · Height: 100 mm · Ø fuel hose connection: 6 mm · Mixed oil connection: No · Vacuum connection: No · Area of application: Standard · Area of application: Tuning · Choke control: without choke · Nozzle size: 76
EUR 153.10
BAD ASS cylinder head L Ø 41-43 mm | Sachs 502, 50/2, 50/3, 50/4
Manufacturer: BAD ASS · Material: Aluminum · Ø cylinder: 41 - 43 mm · Ø outside: 108 mm · Ø screw holder: 19.3 mm · Number of fixing points: 1 pcs · Number of fixing points: 4 pcs · Hole pattern [mm]: 37 x 37 · Area of application: Tuning · Decompressor: M10x1.5
EUR 180.80
GPO cylinder gasket set "Divertimento" & "Diablo" | Sachs 502, 50/2 (CH)
Manufacturer: GPO · Material: Aluminum · Material: Sealing paper · Ø cylinder: 41 mm · Thickness: 0.3 mm · Thickness: 0.4 mm · Thickness: 2.6 mm · Hole spacing inlet: 31 mm · Hole pattern [mm]: 60 x 40 mm / 37 x 37 mm · Number of components: 4 pcs · Area of application: Tuning
EUR 24.00
GPO cylinder gasket set "Divertimento" & "Diablo" | Sachs 50, 50/3, 50/4 (DE)
Manufacturer: GPO · Material: Aluminum · Material: Sealing paper · Ø cylinder: 41 mm · Thickness: 0.3 mm · Thickness: 0.45 mm · Hole spacing inlet: 31 mm · Hole pattern [mm]: 51 x 40 mm / 37 x 37 mm · Number of components: 4 pcs · Area of application: Tuning
EUR 24.00
Attention: new opening hours from 16.02.2026 & new evening sale on Thursday 17:30-20:00
