Forged Wössner high-performance piston for the 47 mm Gilardoni italkit Puch cylinder kit.
ZME forged piston developed by MBR with a 1 mm rectangular piston ring with internal fuse (IS), which is often used in the Mofacross / Mofacup scene.
Optimal material structure, flow-optimized shape and large-diameter inlet windows characterize this high-quality racing piston.
The detailed dimensions 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 stems and locking types on the legend in the pictures.
The molybdenum coating, in combination with oil, results in technologically advanced wear protection with outstanding sliding properties.
Recommended piston size (coating corresponds to +0.01 mm to +0.02 mm):
Gilardoni italkit cylinder A (47.00 mm): 46.94 mm piston (in exceptional cases, e.g. when using ASPEN: 46.93 mm piston)
Gilardoni italkit cylinder B (47.01 mm): 46.95 mm piston
Gilardoni italkit cylinder C (47.02 mm): 46.96 mm piston
Piston ring, piston pin and piston pin retainers are included in the scope of delivery.
Matching add-on parts such as cylinder kits, needle bearings, stroke plates, carburettors, air filters etc. can be found under accessories.
| Manufacturer | Wössner, MBR |
| Surface | molybdenum-coated |
| Nominal diameter | 47 mm |
| Ø outside piston (A) | 46.95 mm |
| Ø piston pin (B) | 12 mm |
| Compression height (C) | 22 mm |
| Curvature (D) | 2.65 mm |
| Total piston height (E) | 48.15 mm |
| Number of piston rings (F) | 1 pcs |
| Piston ring mold | Rectangular ring |
| Piston ring impact | Internal fuse (IS) |
| Piston ring height | 1 mm |
| Piston weight | 94 g |
| Puch | E50 ZA50 (air-cooled) Z50 (X30 Sport) |
Accessories & related products
HOMOET exhaust P8 | Puch (slanted exhaust)
Manufacturer: HOMOET · Surface: varnished · Color: black · Ø outside: 88 mm · Material: Steel · Ø Internal connection: 25 mm · Ø Silencer: 50 mm · Ø Flame tube outside: 28 mm · Exhaust type: Cone / double cone · Number of fixing points: 1 pcs · Flame tube attachment: Flange · Mounting type: Welded lug · Total length: 915 mm
CHF 289.90
swiing® ingenious intake manifold Gilardoni italkit Inox
Manufacturer: swiing® ingenious parts · Material: Aluminum · Total height: 55 mm · Ø inside: 21 mm · Ø External connection: 24 mm · Total length: 80 mm · Height flange center hole: 42.5 mm · Mounting type: Screws · Number of fixing points: 4 pcs · Hole pattern [mm]: 60 x 35 · Area of application: Tuning · Camouflaged: No
CHF 67.90
Not in stock
Polini 24 mm carburetor (hand choke)
Manufacturer: Polini · Component group Carburetor: Carburetor complete · Area of application: Tuning · Nominal diameter: 24 mm · Carburetor type: Flat slide valve · Choke control: Hand choke · Nozzle thread: M5x0.8 (standard thread) · Ø fuel hose connection: 6 mm · Ø Air filter connection: 49 mm · Mounting type: Plug connection · Mixed oil connection: Yes · Vacuum connection: Yes
CHF 149.90
MLM 25 mm intake manifold Gilardoni italkit black | Puch
Surface: varnished · Manufacturer: MLM · Material: Steel · Area of application: Tuning · Color: black · Mounting type: Screws · Hole pattern [mm]: 60 x 35 · Ø inside: 25 mm · Ø External connection: 28.5 mm · Number of fixing points: 4 pcs
CHF 79.90
Gilardoni italkit 47 mm cylinder kit without cylinder head | Puch
Surface: sandblasted · Nominal diameter: 47 mm · Manufacturer: Gilardoni italkit · Camouflaged: No · Material: Aluminum · Displacement: 75 ccm · Area of application: Tuning · Crankshaft stroke: 43 mm · Ø cylinder neck: 51 mm · Ø outlet inside: 26.5 mm · Ø Inlet inside: 18.3 mm · Hole spacing inlet: 35.5 mm · Hole spacing inlet: 60 mm · Inlet window: 38.5 x 25.8 · Thread inlet: M6x1 (standard thread) · Hole pattern [mm]: 44 x 44 · Ø piston pin (B): 12 mm · Outlet type: slanted · Hole spacing outlet: 42 mm · Thread outlet: M6x1 (standard thread) · Decompressor: No · Number of fixing points: 4 pcs
CHF 209.90
Moped fans also bought
swiing® revival M8x12 oil drain plug & copper ring | Puch E50, Z50
Width across flats Screw: 13 mm · Manufacturer: swiing® revival parts · Material: Copper · Material: Steel · Surface: galvanized (blue) · Color: silver · Thread type: M8x1.25 (standard thread) · Drive: External hexagon · Drive: Slot · Total length: 18 mm · Screw head: Hexagon · Thread length: 12 mm · Puch OEM number: 901.1053
CHF 3.50
Motorex engine oil (gear oil) manual 450 ml
Manufacturer: Motorex · Viscosity (SAE): 80W · Oil type: GL4 · Contents [ml]: 450 ml · Area of application: Gearbox lubrication with clutch · Gearbox type: Foot control · Gearbox type: Manual gearshift · Temperature resistance (min.): -30 - 220 °C
CHF 9.90
CHF 22.00/l
swiing® ingenious intake manifold Gilardoni italkit Inox
Manufacturer: swiing® ingenious parts · Material: Aluminum · Total height: 55 mm · Ø inside: 21 mm · Ø External connection: 24 mm · Total length: 80 mm · Height flange center hole: 42.5 mm · Mounting type: Screws · Number of fixing points: 4 pcs · Hole pattern [mm]: 60 x 35 · Area of application: Tuning · Camouflaged: No
CHF 67.90
Not in stock
Stage6 8-folding diaphragm by Moto Tassinari (Gilardoni italkit)
Manufacturer: Stage6 · Material: Plastic · Surface: raw · Area of application: High End · Number of flaps: 8 pcs · Membrane material: Carbon · Thick membrane platelets: 0.4 mm · Ø mounting hole: 6.6 mm · Total length: 77 mm · Mounting type: Screws · Hole pattern [mm]: 60 x 35 mm · Number of fixing points: 4 pcs · Width: 49 mm
CHF 114.90
Gilardoni italkit 47 mm cylinder kit without cylinder head | Puch
Surface: sandblasted · Nominal diameter: 47 mm · Manufacturer: Gilardoni italkit · Camouflaged: No · Material: Aluminum · Displacement: 75 ccm · Area of application: Tuning · Crankshaft stroke: 43 mm · Ø cylinder neck: 51 mm · Ø outlet inside: 26.5 mm · Ø Inlet inside: 18.3 mm · Hole spacing inlet: 35.5 mm · Hole spacing inlet: 60 mm · Inlet window: 38.5 x 25.8 · Thread inlet: M6x1 (standard thread) · Hole pattern [mm]: 44 x 44 · Ø piston pin (B): 12 mm · Outlet type: slanted · Hole spacing outlet: 42 mm · Thread outlet: M6x1 (standard thread) · Decompressor: No · Number of fixing points: 4 pcs
CHF 209.90
Collection only possible with online purchase and appointment.
