38 mm cylinder with round slotted 12 mm intake for Sachs 2-, 3- and 4-speed engines with blower, which were installed 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 it easier to fit the cylinder kit to a Swiss Sachs 50/2 (502) engine, as the blower cover can be fitted without any adjustments. However, adjustments in the area of the stud bolt holes are essential.
Exhaust thread: M35 x 2 mm
Ø outside: approx. 92 mm
Ø raceway: 38.01 mm
Ø piston: 37.96 mm
Pin spacing: 51 x 40 mm
Matching attachments can be found under accessories.
Good, inexpensive standard spare part. GPO – GOOD PARTS ONLY.
The set includes the following fixed parts:
Manufacturer: GPO · Nominal diameter: 38 mm · Ø outside piston (A): 37.94 mm · Ø piston pin (B): 12 mm · Compression height (C): 27.5 mm · Curvature (D): 3.5 mm · Total piston height (E): 53 mm · Number of piston rings (F): 2 pcs · Piston ring mold: Rectangular ring · Piston ring impact: Flank safety device (FS) · Piston ring height: 1.7 mm · Thick piston ring: 2 mm · Alternative version of Sachs spare part no.: 0290 058 025 · Weight: 78 g
Hole pattern [mm]: 51 x 40 · Manufacturer: GPO · Material: Gray cast iron · Surface: sandblasted · Displacement: 50 ccm · Crankshaft stroke: 42 mm · Nominal diameter: 38 mm · Thread inlet: M5x0.8 (standard thread) · Hole spacing inlet: 31 mm · Ø piston pin (B): 12 mm · Outlet type: Union nut · Thread outlet: M35x2 (standard thread) · Number of fixing points: 4 pcs · Camouflaged: No · Area of application: Tuning
Hole pattern [mm]: 51 x 40 mm · Number of components: 4 pcs · Hole spacing inlet: 31 mm · Ø outlet inside: 28 - 32 mm · Area of application: Standard, 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
Place of use: Admission · Thickness: 5 mm · Ø inside: 11.8 mm · Hole spacing inlet: 31 mm · Pony spare part no.: A1823 · Sachs spare part no.: 0250 085 000
Details
| Nominal diameter | 38 mm |
| Manufacturer | GPO |
| Material | Gray cast iron |
| Displacement | 50 ccm |
| Crankshaft stroke | 42 mm |
| Surface | sandblasted |
| Thread inlet | M5x0.8 (standard thread) |
| Hole spacing inlet | 31 mm |
| Ø piston pin (B) | 12 mm |
| Outlet type | Union nut |
| Thread outlet | M35x2 (standard thread) |
| Hole pattern [mm] | 51 x 40 / 37 x 37 |
| Number of fixing points | 4 pcs |
| Camouflaged | No |
| Area of application | Tuning |
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) |
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