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new vespa piaggio pinasco crankshaft with extended intake duration for maximum performance on stock-style rotary inducted cases! comes with special pinasco designed crankshaft bearings!
Pinasco writes:
"High performance advanced crankshaft for original crankcases used at Monferraglia.The Pinasco crankshaft, made of casehardened and chromed steel, advanced and polished on the intake side, guarantees high performance in all conditions of use, even the most demanding. Pinasco, in fact, has modified the radius of the transmission axle to eliminate fatigue breakage problems and replaced the original bearing with a special model produced by Pinasco (included in the kit). A technical innovation by Pinasco resulting from numerous tests on the dyno and on the road; the particular design of the wedge-shaped intake shoulder, the choice of materials, the attention to detail and assembly make this product an object of superior quality."
polished con rod for extremely good flow characteristics, polished intake cutaway, laser engraved logo. wowza
43mm stroke (stock)
12mm wrist pin
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