41 mm tuning cylinder with square inlet for Sachs 3- and 4-speed engines with blower cooling, which were installed on Hercules 50/3 LS 50/4 LKH, Gritzner, etc.
The tuning cylinder requires a 17 mm Bing SSB carburetor. You can find this and other add-on parts in the accessories section.
Outlet thread: M40 x 1.5 mm
Ø outside: approx. 118 mm
Ø race: 41.01 mm
Ø piston: 40.94 mm
Good, inexpensive standard spare part. GPO – GOOD PARTS ONLY.
The set includes the following fixed parts:
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
Hole pattern [mm]: 44 x 44 · Manufacturer: GPO · Material: Cast aluminum · Surface: sandblasted · Displacement: 50 ccm · Crankshaft stroke: 43 mm · Nominal diameter: 41 mm · Thread inlet: M6x1 (standard thread) · Hole spacing inlet: 38 mm · Ø piston pin (B): 12 mm · Outlet type: straight · Hole spacing outlet: 42 mm · Thread outlet: M6x1 (standard thread) · Number of fixing points: 4 pcs · Camouflaged: No · Area of application: Tuning
Manufacturer: swiing® revival parts · Material: Steel · Surface: blue galvanized · Thread type: M5x0.8 (standard thread) · Total length: 26 mm · Thread length: 14 mm, 7 mm · Strength class: 10.9 · Pony spare part no.: A1474 · Sachs spare part no.: 0241 031 101
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
Material: Copper · Ø inside: 30.6 mm · Ø outside: 37.8 mm
Details
| 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 |
| Area of application | Tuning |
| Number of fixing points | 4 pcs |
| Thread outlet | MF40x1.5 (fine pitch thread) |
| Hole pattern [mm] | 51 x 40 |
| Camouflaged | No |
Suitable for the following models
| Sachs | 50 (Fahrtwind, 1.25 / 1.5 PS, DE) 50/3 50/4 - MLFB (2.6 PS), LKH (4.5 PS) |
Accessories & related products
Carburetor 17 mm Bing SSB 1/17/69 reproduction
Nominal diameter: 17 mm · Material: Aluminum · Camouflaged: No · Area of application: Standard · Area of application: Tuning · Carburetor type: SSB · Mounting type: Stud bolts & nuts · Width: 86 mm · Height: 99 mm · Hole spacing inlet: 31 mm · Total length: 116 mm · Nozzle thread: M7x0.75 · Nozzle size: 76 · Ø fuel hose connection: 6.2 mm · Mixed oil connection: No · Vacuum connection: Yes · Choke control: without choke · Clamping screw torque (max.): 3 N/m · Clamping screw torque (max.): 4 N/m
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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
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Cylinder head 41 mm Tuning | Sachs 50/3, 50/4 LKH
Ø outside: 128 mm · Material: Aluminum · Area of application: Tuning · Camouflaged: Yes · Surface: sandblasted · Ø cylinder: 41 mm · Candle thread: long · Decompressor: No · Number of fixing points: 4 pcs · Hole pattern [mm]: 37 x 37
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Carburetor 17 mm Bing SSB 1/17/69 reproduction
Nominal diameter: 17 mm · Material: Aluminum · Camouflaged: No · Area of application: Standard · Area of application: Tuning · Carburetor type: SSB · Mounting type: Stud bolts & nuts · Width: 86 mm · Height: 99 mm · Hole spacing inlet: 31 mm · Total length: 116 mm · Nozzle thread: M7x0.75 · Nozzle size: 76 · Ø fuel hose connection: 6.2 mm · Mixed oil connection: No · Vacuum connection: Yes · Choke control: without choke · Clamping screw torque (max.): 3 N/m · Clamping screw torque (max.): 4 N/m
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swiing® revival stud bolt inlet M5x26 mm galvanized (strength 10.9) | Sachs (A1474)
Manufacturer: swiing® revival parts · Material: Steel · Surface: blue galvanized · Thread type: M5x0.8 (standard thread) · Total length: 26 mm · Thread length: 7 mm · Thread length: 14 mm · Strength class: 10.9 · Pony spare part no.: A1474 · Sachs spare part no.: 0241 031 101
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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
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Collection only possible with online purchase and appointment.
