BGM Crankshaft stroke 51mm cone 20mm Vespa PTS (Full Circle)

BGM

Dilihat sebanyak 5806x

  • Product Code: 1611014
  • 1611014
  • BGM Crankshaft stroke 51mm cone 20mm Vespa PTS (Full Circle)
  • Weight: 1,730g
  • Stok produk kosong
    Untuk sementara produk ini tidak dijual. Jangan kuatir, produk akan segera kami perbarui.

  • $190


Deskripsi Produk

The shaft has a stroke of 51 mm (like the 125ccm series), but has a 105 mm long connecting rod (97mm series) which has been widened in its last evolutionary stage to a proud 5mm thickness. The crank webs are larger in diameter (both sides: 87mm) than those of a series shaft (86.8mm). Therefore the crankcase has to be enlarged in diameter (spindle dimension 88mm).

The longer connecting rod requires either a suitable cylinder or a corresponding spacer.

Short facts:

  • forged crank webs
  • 51mm stroke
  • Forged CNC connecting rod, 105mm
  • silver cage
  • lower connecting rod pin 20mm
  • bearing seat Lima side 20mm
  • Made in Europe
  • Approval for engines
  • up to ~18-20HP
General
EAN: 4250366613567
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: 35 mm
diameter bearing seat rotor side: 25 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:
filling material for full circle: steel
rotary valve crankshaft:
crankcase has to be milled:
engine casing has to be modified:
Connecting rods
length connecting rod: 105 mm
thickness connecting rod: 5 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: slot
crankpin shims: yes

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