
Four stud bolts, which were specially developed for the Gilardoni italkit racing cylinder for Puch mopeds.
The stud bolts are slightly thicker than the originals, which means that the cylinder is perfectly guided. In addition, two flats (SW 6 mm) were milled in each case. This allows the bolt to be easily screwed into the engine housing.
High-quality and precise workmanship for demanding screwdrivers - 100% Swiss made.
The stud bolts have the following features:
| Manufacturer | MBR |
| Area of application | High End |
| Surface | polished |
| Thread type | M6x1 (standard thread) |
| Width across flats | 6 mm, 10 mm |
| Puch | E50 ZA50 (air-cooled) Z50 (X30 Sport) |
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Gilardoni italkit 47 mm cylinder kit without cylinder head | Puch
Manufacturer: Gilardoni italkit · Material: Aluminum · Surface: sandblasted · Nominal diameter: 47 mm · Displacement: 75 ccm · Crankshaft stroke: 43 mm · Ø piston pin (B): 12 mm · Ø cylinder neck: 51 mm · Ø Inlet inside: 18.3 mm · Ø outlet inside: 26.5 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 spacing outlet: 42 mm · Hole pattern [mm]: 44 x 44 · Number of fixing points: 4 pcs · Outlet type: slanted · Thread outlet: M6x1 (standard thread) · Area of application: Tuning · Decompressor: No · Camouflaged: No
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Manufacturer: swiing® ingenious parts · Weight: 970 g · Material: Steel · Cheek type: Full cheeks · Crankshaft stroke: 44 mm · Connecting rod length center-center: 90 mm · Number of gears: 1 pcs · Total length of crankpin on clutch side: 74 mm · Total length crankpin ignition side: 66 mm · Ø crank webs: 69.9 mm · Thread type: MF10x1 (fine pitch thread) · Ø Connecting rod eye: 15 mm · Ø piston pin (B): 12 mm · Ø Bearing seat (clutch side): 17 mm · Ø Bearing seat (ignition side): 17 mm · Thread length: 11 mm · Thread length: 15 mm · Area of application: High End · Dimension needle bearing: 12 / 15 x 14.2 mm (axe 12) · Wide crank webs: 34 mm · Length 1st paragraph: 9 mm · Length 2nd paragraph: 14.5 mm · Ø 1st step (on the coupling side): 22 mm · Ø 2nd shoulder (on the clutch side): 17 mm · Ø 3rd step (on the clutch side): 15 mm · Length of shoulder (ignition side): 26.3 mm
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