44.0 mm Vertex piston with two pieces of 1.5 mm rectangular piston rings with internal locking (IS). The piston set is suitable for the 44 mm swiing tuning cylinder kit for Zündapp Belmondo mopeds, Zündapp Bergsteiger M25/M50 mopeds, as well as Alpa Spezial 3000 and Alpa Black River small motorcycles which have a Zündapp type 247 engine installed.
The Vertex piston is characterized by its high-quality and precise fit.
The detailed dimensioning of the piston according to the technical drawing can be found in the details. You can also find out about the relevant piston rings, their positions and locking types on the legend in the pictures.
The piston kit contains piston pins, piston clips and piston rings.
You will find the appropriate assembly tools, piston pin locks and, if necessary, the corresponding cylinder in the accessories section.
The Vertex piston manufactured for swiing® is characterized by its high-quality and precise fit.
Details
| Manufacturer | swiing® ingenious parts |
| Ø outside piston (A) | 43.95 mm |
| Ø piston pin (B) | 12 mm |
| Compression height (C) | 25.05 mm |
| Curvature (D) | 2.45 mm |
| Total piston height (E) | 51.5 mm |
| Number of piston rings (F) | 2 pcs |
| Piston ring mold | Rectangular ring |
| Nominal diameter | 44 mm |
| Piston ring impact | Internal fuse (IS) |
| Piston ring height | 1.5 mm |
Suitable for the following models
| Zündapp Belmondo | |
| Zündapp | 247 Motor |
Accessories & related products
GPO piston pin extractor Ø 10, 12, 14 mm
Width across flats SW: 10 mm · Width across flats SW: 17 mm · Total length: 130 mm · Diameter: 10 mm · Diameter: 12 mm · Diameter: 14 mm · Manufacturer: GPO · Area of application: (Dis)assembly tool · Material: Steel · Surface: burnished · Number of components: 7 pcs
CHF 19.90
CHF 29.90
Moped fans like you also bought:
Magura cable clamp Ø 8 x 15 mm
Width across flats SW: 7 mm · Total length: 15 mm · Ø outside: 8 mm · Manufacturer: Magura · Material: Brass · Area of application: Standard · Material: Steel · Surface: blue galvanized · Surface: nickel-plated · Thread type: M6x1 (standard thread) · Ø Cable bushing: 2.3 mm · Ø Bundle: 6 mm · Screw head: Hexagon · Drive: External hexagon · Drive: Slot · Thread length: 7 mm
CHF 2.50
NTN 6203 C3 Ball bearing 17/40/12
Bearing type: Deep groove ball bearing · Stock number: 6203 · Ø inside: 17 mm · Inner ring width: 12 mm · Ø outside: 40 mm · Manufacturer: NTN · Ball bearing closed: No · Width: 12 mm · Bearing clearance: C3 · Bearing cage: "-" Sheet steel cage ball-guided · Groove ring: No · Area of application: Standard · Material: Steel · Surface: blank
CHF 8.90
Hot 
Leonelli 12V voltage regulator (1A quality)
Total length: 50 mm · Ø mounting hole: 6 mm · Manufacturer: Leonelli · Width: 27 mm · Height: 15 mm · Material: Aluminum · Material: Plastic · Surface: blue galvanized · Tension: 12 V · Performance: 100 W · Type of current: Alternating current (AC) · Mounting type: Screws
CHF 34.90
Hot
VEC electronic ignition coil (replaces ignition coil, capacitor & contact breaker)
Number of fixing points: 2 pcs · Total length: 77 mm · Ø mounting hole: 4.6 mm · Manufacturer: VEC · Height: 48 mm · Area of application: Original · Area of application: Performance · Area of application: Standard · Color: black · Ø cable holder: 5 mm · Cable length: 140 mm · Cable length: 420 mm · Place of use: Internal (in the ignition) · Ø Internal flywheel: 90 mm · Hole spacing: 54 mm · Mounting type: Screws
CHF 99.90
Not in stock
Collection only possible with online purchase and appointment.
