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Crankshaft -BGM PRO Racing (rotary valve), 51mm stroke, 97mm conrod- conversion Vespa PK50 XL/XL2 to 125cc (Ø=20mm cone)

BGM2401
€114.89 *

incl. VAT plus shipping costs

In stock: can be delivered or picked up in the store
Bearings
sizes: 15x19x20mm
Gudgeon pins
diameter: 15 mm
Crankshafts
stroke: 51 mm
thread rotor side: M12x1,25 right-hand thread
thread drive side: M10x1,5 right-hand thread
diameter crankwebs: 87 mm
width crankwebs: 37.6 mm
diameter bearing seat rotor side: 20 mm
diameter bearing seat drive side: 17 mm
diameter oil seal seat rotor side: 20 mm
diameter oil seal seat drive side: 22.7 mm
full circle crankshaft:
rotary valve crankshaft:
length rotary crankweb: 178 mm
Vespa V50, PV - intake timing for short rotary surface (22mm) (°): 154
Vespa PK XL2, ETS - intake timing for long rotary surface (28mm) (°): 163
Vespa PK XL2, ETS - intake timing for long rotary surface (37mm fully modified) (°): 175
crankcase has to be milled:
engine casing has to be modified:
Connecting rods
length connecting rod: 97 mm
thickness connecting rod: 4.1 mm
diameter small end connecting rod eye: 19 mm
lubricating hole at small end bearing: yes
diameter crankpin: 20 mm
lubricating hole at crankpin bearing: notch
crankpin shims: yes
P For this item you get fidelity point/s
The PK125 series offers some special features on the engine side. The PK125S still has the...Continue reading

Description


The PK125 series offers some special features on the engine side.

  • The PK125S still has the small crankshaft type with small, pointed 19mm cone of the Primavera and ET3 models.
  • The PK125ETS and PK125XL2 are available.
    (machine-translated)
     

Ratings


11 Jan 2016

Gute Qualität

19 Apr 2015

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