Fan-cooled 41 mm (55 ccm) racing cylinder suitable for your moped with a Sachs 50, 502, 50/2, 50/3, or 50/4 engine.
The valve timing on this racing cylinder is intentionally set low, which ensures strong torque in the lower RPM range. The two-piece exhaust further enhances this effect. So you can enjoy every ride discreetly in everyday life, a “30 km” embossing conceals the actual power of your engine.
Differences between the GPO Divertimento cylinder and the original BADASS Diablo cylinder when paired with a matching GPO piston:
-
On the GPO cylinder, the web of the split exhaust port is slightly chamfered to minimize the risk of an exhaust-side heat seizure.
-
On the GPO tuning cylinder, the edges of the overflow channels near the cylinder neck have been chamfered to facilitate piston ring installation.
-
The matching GPO piston is designed to work with the cylinder. Differences include the crown profile and the cutouts in the piston skirt for the overflow channels.
-
On the GPO Divertimento, more space was created for the nuts to secure the cylinder base.
-
The angle of the intake tract has been adjusted so that the carburetor and air filter are now aligned horizontally and no longer point diagonally upward.
-
On the BADASS Diablo, the embossed “30 km” logo is positioned off-center, whereas on the GPO Divertimento it is centered, as on the original Swiss cylinder.
Notes:
The cylinder is shipped loose and without a piston, gasket set, studs, or other mounting parts.
The cylinder base is factory-designed for Swiss 50/2 (502) engines. However, the mounting holes for the German 50/2 engine casing are marked. This allows you to drill them out if necessary and use the cylinder as usual for your moped with a German engine casing.
The large intake allows for the use of the 17 mm swiing® tuning carburetor, provided it is mounted with a short air filter cap, the appropriate clamp (short), and the corresponding cover plate (long/deep).
You can find the larger 43 mm version of the racing cylinder as well as the matching 17 mm carburetor in the accessories section.
A good, affordable standard replacement part. GPO – GOOD PARTS ONLY.
| Material | Gray cast iron |
| Manufacturer | GPO |
| Displacement | 55 ccm |
| Nominal diameter | 41 mm |
| Ø cylinder neck | 46 mm |
| Ø Outlet outside | 40 mm |
| Hole spacing | 28 mm |
| Hole spacing inlet | 31 mm |
| Outlet type | Union nut |
| Camouflaged | Yes |
| Number of fixing points | 4 pcs |
| Supporter | Sigg |
| Durchführungsort | CH-8493 Saland |
| 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) |
Accessories & related products
swiing® revival screw set cylinder head Inox | Sachs 503 / 50/2 / 50/3 / 50/4
Manufacturer: swiing® revival parts · Material: Chrome steel (colloquially known as stainless steel) · Area of application: Standard · Thread type: M6x1 (standard thread) · Nominal diameter (thread): 6 mm · Drive: External hexagon · Screw head: Hexagon · Width across flats: 10 mm · Shank: Yes · Ø shaft: 5.85 mm · Shank length: 8 mm · Total length: 34 mm · Thread length: 22 mm · Number of components: 12 pcs
CHF 7.40
Cigar Exhaust System (Ø 32 / 70 mm) Chrome | Sachs 50/2
Manufacturer: Made in Portugal · Ø outside: 70 mm · Material: Steel · Surface: chrome-plated · Color: Chrome · Total length: 700 mm · Ø Internal connection: 32 mm · Mounting type: Screwed clamp · Ø Flame tube outside: 32 mm · Exhaust type: Cigar · Flame tube attachment: Union nut
CHF 104.90
swiing® revival carburetor 17 mm Bing SSB 1/17/69
Manufacturer: swiing® revival parts · Camouflaged: No · Component group Carburetor: Carburetor complete · Material: Aluminum · Carburetor type: SSB · Nominal diameter: 17 mm · Ø fuel hose connection: 6 mm · Mixed oil connection: No · Vacuum connection: No · Choke control: without choke · Nozzle size: 76 · Mounting type: Flange · Hole spacing inlet: 31 mm · Total length: 132 mm · Width: 85 mm · Height: 100 mm · Area of application: Standard · Area of application: Tuning
CHF 126.90
swiing® ingenious gasket cylinder head 41 mm | Sachs 503, 502, 50/2, 50/3, 50/4
Manufacturer: swiing® ingenious parts · Material: Aluminum · Place of use: Cylinder head · Thickness: 0.3 mm · Nominal diameter: 41 mm · Ø inside: 41.7 mm · Ø cylinder: 41 mm · Hole pattern [mm]: 37 x 37 · Area of application: Standard
CHF 4.90
swiing® ingenious exhaust nut M40x1.5 long 32 mm manifold | Sachs
Manufacturer: swiing® ingenious parts · Material: Steel · Surface: chrome-plated · Nut type: Union nut · Thread type: MF40x1.5 (fine pitch thread) · Nominal diameter (thread): 40 mm · Ø inside: 32.5 mm · Ø outside: 45 mm · Height: 22 mm
CHF 21.70
swiing® ingenious hook wrench M40 exhaust nut | Sachs 50/2
Total length: 280 mm · Width: 67 mm · Height: 5 mm · Manufacturer: swiing® ingenious parts · Ø inside: 33 mm · Ø outside: 46 mm · Weight: 300 g · Area of application: Workshop accessories · Material: Rubber · Material: Steel · Surface: galvanized (blue) · Number of components: 1 pcs
CHF 24.90
NC-Motorparts 41 mm Cylinder Head Tuning | Sachs 50/3, 50/4 LKH
Manufacturer: NCMotorparts · Material: Aluminum · Surface: sandblasted · Ø cylinder: 41 mm · Ø outside: 128 mm · Camouflaged: Yes · Number of fixing points: 4 pcs · Hole pattern [mm]: 37 x 37 · Candle thread: long · Decompressor: No · Area of application: Tuning · Supporter: Sigg · Durchführungsort: CH-8493 Saland
CHF 96.90
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 · Number of fixing points: 1 pcs · Number of fixing points: 4 pcs · Ø screw holder: 19.3 mm · Hole pattern [mm]: 37 x 37 · Decompressor: M10x1.5 · Area of application: Tuning
CHF 149.90
GPO 43 mm "Divertimento" cylinder (slotted) | Sachs 502, 50/2, 50/3, 50/4
Manufacturer: GPO · Material: Gray cast iron · Displacement: 61 ccm · Nominal diameter: 43 mm · Ø cylinder neck: 46 mm · Ø Outlet outside: 40 mm · Hole spacing inlet: 31 mm · Outlet type: Union nut · Camouflaged: Yes · Number of fixing points: 4 pcs · Supporter: Sigg · Durchführungsort: CH-8493 Saland
CHF 129.90
Explore categories from Cylinder
Moped fans also bought
Hot 
swiing® revival nozzle set M3.5 (64 - 74) Bing SRE, SRA, SRC, SRF
Manufacturer: swiing® revival parts · Component group Carburetor: Spraying · 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 · Drive: Slot · Total length: 6 mm · Nozzle thread: M3.5x0.6 (standard thread) · Nozzle size: 64 · Nozzle size: 66 · Nozzle size: 68 · Nozzle size: 70 · Nozzle size: 72 · Nozzle size: 74
CHF 15.90
Hot
VEC electronic ignition coil (replaces ignition coil, capacitor & contact breaker)
Manufacturer: VEC · Place of use: Internal (in the ignition) · Ø Internal flywheel: 90 mm · Ø cable holder: 5 mm · Cable length: 140 mm · Cable length: 420 mm · Color: black · Total length: 77 mm · Height: 48 mm · Mounting type: Screws · Number of fixing points: 2 pcs · Ø mounting hole: 4.6 mm · Hole spacing: 54 mm · Area of application: Original · Area of application: Performance · Area of application: Standard
CHF 149.90
Not in stock
swiing® revival stud bolt set M5x26 inlet (10.9 strength) | Sachs 50/2, 502, 50/3
Manufacturer: swiing® revival parts · Material: Steel · Surface: galvanized (blue) · Thread type: M5x0.8 (standard thread) · Nominal diameter (thread): 5 mm · Total length: 26 mm · Thread length: 7 mm · Thread length: 14 mm · Width across flats: 8 mm · Strength class: 8 · Strength class: 10.9 · Drive: External hexagon
CHF 5.70
GPO 41 mm piston "Divertimento" | Sachs 502, 50/2, 50/3, 50/4
Manufacturer: GPO · Material: Aluminum · Nominal diameter: 41 mm · Ø outside piston (A): 40.95 mm · Ø piston pin (B): 12 mm · Compression height (C): 28 mm · Curvature (D): 3.4 mm · Total piston height (E): 50.5 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: 1.7 mm
CHF 44.90
GPO 41 mm cylinder kit "Divertimento" (slotted) | Sachs 502, 50/2, 50/3, 50/4
Nominal diameter: 41 mm · Manufacturer: GPO · Material: Gray cast iron · Surface: blank / oiled · Displacement: 55 ccm · Crankshaft stroke: 42 mm · Hole spacing inlet: 31 mm · Ø cylinder neck: 46 mm · Ø Outlet outside: 40 mm · Ø outlet inside: 28 mm · Inlet window: 17 x 15 mm · Thread inlet: M5x0.8 (standard thread) · Ø piston pin (B): 12 mm · Hole pattern [mm]: 60 x 40 / 51 x 40 / 37 x 37 · Outlet type: Union nut · Thread outlet: MF40x1.5 (fine pitch thread) · Number of fixing points: 4 pcs · Decompressor: No · Camouflaged: Yes
CHF 169.90
GPO stud bolt set "Divertimento" & "Diablo" cylinder | Sachs 502, 50/2, 50/3, 50/4
Manufacturer: GPO · Material: Steel · Surface: blackened · Diameter: 5.3 mm · Drive: External hexagon · Thread type: M6x1 (standard thread) · Nominal diameter (thread): 6 mm · Total length: 62 mm · Width across flats: 10 mm · Strength class: 10.9 · Thread length: 7.8 mm · Thread length: 11.8 mm
CHF 11.90
Working late? Evening hours on Thursday until 20:00
