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#P8854
BGM PRO racing crankshaft for Vespa 50 smallframe & PK50 scooters.
Forged crankshaft, the high density material dissipates heat well, the material is resistant to distortion allowing for higher compression ratios to be achieved safely. Suitable for 50-112cc cylinders.
Small cone: 19mm
Rotary valve type
Small end bearing: 12mm
BGM BGM2403
