41mm tuning cylinder with square intake for Sachs 3- and 4-speed engines with blower cover, which was used on Hercules 50/ALS 50/2 S 50/KS 50/2 DK 50/3 LS 50/4 LKS, Gritzner etc., among others.
The smaller cooling fins make installation on a Swiss Sachs 50/2 (502) engine easier, as the fan cowl can be fitted without any adjustments. However, adjustments in the area of the stud bolt holes are essential.
The cylinder should preferably be used with a 17 mm Bing SSB carburetor.
Exhaust thread: M40x1.5
Ø outer: ~92 mm
Ø bore: 41.01 mm
Ø piston: 40.94 mm
Matching add-on parts can be found in the accessories section.
Good, inexpensive standard spare part. GPO – GOOD PARTS ONLY.
Manufacturer: GPO · Nominal diameter: 41 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 · Weight piston kit: 86 g
Manufacturer: GPO · Material: Gray cast iron · Surface: raw · Displacement: 55 ccm · Crankshaft stroke: 42 mm · Nominal diameter: 41 mm · Ø Outlet outside: 40 mm · Hole spacing inlet: 31 mm · Outlet type: Union nut · Cooling type: Fan air cooling · Number of fixing points: 4 pcs · Area of application: Tuning
Material: Copper · Ø inside: 30.6 mm · Ø outside: 37.8 mm
Hole pattern [mm]: 40.5 x 51 · Manufacturer: swiing® revival parts · Material: Oiled paper · Place of use: Cylinder base · Thickness: 0.5 mm
Place of use: Admission · Thickness: 2.6 mm · Hole spacing inlet: 30 mm
Manufacturer: swiing® revival parts · Material: Steel · Surface: galvanized (blue) · Area of application: Standard · Diameter: 4.9 mm · Thread type: M5x0.8 (standard thread) · Total length: 23 mm · Thread length: 6 mm, 12 mm · Pony OEM number: A3700 · Sachs OEM no.: 0640 016 101, 0640 016 102
| Nominal diameter | 41 mm |
| Manufacturer | GPO |
| Material | Gray cast iron |
| Surface | sandblasted |
| Displacement | 55 ccm |
| Crankshaft stroke | 42 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) |
| Number of fixing points | 4 pcs |
| Hole pattern [mm] | 51 x 40 |
| Camouflaged | No |
| Area of application | Tuning |
| Sachs | 50 (Fahrtwind, 1.25 / 1.5 hp, DE) 50/3 50/4 - MLFB (2.6 PS), LKH (4.5 PS) |
Ratings
Accessories & related products
Carburetor 17 mm Bing SSB 1/17/69 reproduction
Nominal diameter: 17 mm · Material: Aluminum · Component group Carburetor: Carburetor complete · Carburetor type: SSB · Total length: 116 mm · Hole spacing inlet: 31 mm · Ø fuel hose connection: 6.2 mm · Mixed oil connection: No · Mounting type: Stud bolts & nuts · Vacuum connection: Yes · Choke control: without choke · Nozzle thread: MF7x0.75 (fine pitch thread) · Camouflaged: No · Nozzle size: 76 · Area of application: Standard · Area of application: Tuning · Clamping screw torque (max.): 3 N/m · Clamping screw torque (max.): 4 N/m · Width: 86 mm · Height: 99 mm
EUR 99.00
GPO 41 mm cylinder | Sachs 50/3, 50/4 (square inlet) fan-cooled (DE)
Nominal diameter: 41 mm · Manufacturer: GPO · Material: Gray cast iron · Surface: raw · Area of application: Tuning · Displacement: 55 ccm · Crankshaft stroke: 42 mm · Ø Outlet outside: 40 mm · Hole spacing inlet: 31 mm · Number of fixing points: 4 pcs · Outlet type: Union nut · Cooling type: Fan air cooling
EUR 121.30
GPO piston 40.94 mm | Sachs 502, 50/2, 50/3, 50/4
Nominal diameter: 41 mm · Manufacturer: GPO · Thick piston ring: 1.8 mm · Ø outside piston (A): 40.94 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 · Ø piston pin (B): 12 mm · Weight piston kit: 86 g
EUR 49.40
Moped fans also bought
Carburetor 17 mm Bing SSB 1/17/69 reproduction
Nominal diameter: 17 mm · Material: Aluminum · Component group Carburetor: Carburetor complete · Carburetor type: SSB · Total length: 116 mm · Hole spacing inlet: 31 mm · Ø fuel hose connection: 6.2 mm · Mixed oil connection: No · Mounting type: Stud bolts & nuts · Vacuum connection: Yes · Choke control: without choke · Nozzle thread: MF7x0.75 (fine pitch thread) · Camouflaged: No · Nozzle size: 76 · Area of application: Standard · Area of application: Tuning · Clamping screw torque (max.): 3 N/m · Clamping screw torque (max.): 4 N/m · Width: 86 mm · Height: 99 mm
EUR 99.00
swiing® revival stud bolt M5 x 23 inlet (diaphragm) 10.9 | Sachs 50/2 (A3700)
Manufacturer: swiing® revival parts · Material: Steel · Surface: galvanized (blue) · Thread type: M5x0.8 (standard thread) · Diameter: 4.9 mm · Total length: 23 mm · Thread length: 6 mm · Thread length: 12 mm · Area of application: Standard · Pony OEM number: A3700 · Sachs OEM no.: 0640 016 101 · Sachs OEM no.: 0640 016 102
EUR 2.25
GPO 41 mm cylinder | Sachs 50/3, 50/4 (square inlet) fan-cooled (DE)
Nominal diameter: 41 mm · Manufacturer: GPO · Material: Gray cast iron · Surface: raw · Area of application: Tuning · Displacement: 55 ccm · Crankshaft stroke: 42 mm · Ø Outlet outside: 40 mm · Hole spacing inlet: 31 mm · Number of fixing points: 4 pcs · Outlet type: Union nut · Cooling type: Fan air cooling
EUR 121.30
GPO piston 40.94 mm | Sachs 502, 50/2, 50/3, 50/4
Nominal diameter: 41 mm · Manufacturer: GPO · Thick piston ring: 1.8 mm · Ø outside piston (A): 40.94 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 · Ø piston pin (B): 12 mm · Weight piston kit: 86 g
EUR 49.40
Collection only possible with online purchase and appointment.
