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Long Stroke Crankshaft PINASCO

for Vespa 125 VNB/GT/GTR 1°
/Super/TS/150 VBA/VBB/T4/GL
/Sprint/V 1°/Super 1°
disc valve, stroke 60,0mm, conrod 105,0mm,
pin 15mm


More stroke allows more cubic capacity, which in turn, means more power. That's why most 200cc motors, whether race or road tuned, turn to long stroke crankshafts. To balance out stroke increase, spacers are set in either at the cylinder base or head. It's also a simple way to play around with timing.


With long stroke crankshafts, the stroke pivot is further from the crankcase axel: with 60 mm shafts, 1.5 mm. The additional 1.5 mm pushes over the top and lower dead center. To keep the piston from touching the cylinder head, cylinder head/base spacers can be installed or suitable SIP/MMW cylinder heads can be used. Timing changes in any case. Depending on type of race cylinder, there are several favored combinations which we've put together for you in the technical department.


For the MALOSSI 210cc, the following applies:

1.5 mm base compensation: wide rpm range and high PS, lowered torque coupled with late and sudden acceleration.

1.5 mm head compensation: hefty torque and free wheelies in lower rpm's, lower top speeds. This is SIP's favorite touring combination, especially when coupled with a longer transmission.


PINASCO long stroke crankshafts have aerodynamically adapted and polished crankwebs. In terms of the timing it is between the shafts from MAZZUCHELLI and POLINI. The conrod, which is forged and polished to high quality, features PINASCO lettering and silver bearings. To ensure its optimum lubrication it is also fitted with additional lubrication bores/slots. The crankwebs are also designed in the maximum width, and therefore optimally seal the disc valve on both the flywheel and the clutch side. With the Competizione long stroke crankshaft (stroke 62.00mm), PINASCO is also offering a sporty shaft with sharper timings, an aerodynamically optimised surface, Wolfram balances, and innovative PTFE inlays which provide a higher compression at lower revs. Perfect for potent touring or racing set-ups!


Conclusion: A perfect basis for powerful torque touring motors or rpm hefty PS monsters. For those wanting more, we suggest long stroke flowed shafts.


Long stroke crankshaft / stroke 60 mm / connecting rod 105-110 / 24/25 mm, M12

Long stroke crankshaft, with ø 95 mm (flywheel side), ø 97.9 mm crankweb (disc valve side), partially balanced at 12 o'clock, lower connecting rod bearing = silver bearing, 105 mm connecting rod (125/150 cc) or 110 mm connecting rod (200 cc), 60 mm stroke, oil seal housing 24 mm, bearing housing 25 mm, stump cone with M12 thread, incl. connecting rod bearing.


SIP-TIP: SIP/MMW long stroke head, MALOSSI 210cc and SIP Road exhaust for touring set up, 1.5 mm base gasket, SIP Performance/RZ/DSE exhaust, MALOSSI or POLINI, 28-30 mm carburetor as basics for sport set up. Try out a variety of base/head gaskets to find the right one for your needs.

OEM Numbers (for the purpose of comparison)  25080902 (PINASCO)

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Product forums
icon scootermodels This product fits the following models
divider Producer/Model divider cc divider Type divider Engine divider Yr. of Const. divider Extra
VESPA 125 125 VNT1-2 2T AC `60-`62
VESPA 125 (T2/125) (D) 125 VNB1-6 2T AC `59-`65
VESPA 125 GT / 125 Sprint 125 VNL1-2 2T AC `61-`73
VESPA 125 GTR 125 VNL2T 2T AC `68-`78 -> 145900
VESPA 125 S 125 VNS1-6 2T AC `59-`65
VESPA 125 Super 125 VNC1T 2T AC `65-`69
VESPA 125 TS 125 VNL3T 2T AC `75-`78 -> 18138
VESPA 150 150 VBB1-2 2T AC `60-`67
VESPA 150 150 VBA1T 2T AC `58-`60
VESPA 150 (T4/150) (D) 150 VGLA-B 2T AC `59-`65
VESPA 150 GL 150 VLA1T 2T AC `62-`64
VESPA 150 GL Touring (DK) 150 VGLA-B 2T AC `57-`58
VESPA 150 Sprint 150 VLB1T 2T AC `65-`74
VESPA 150 Sprint Veloce 150 VLB1T 2T AC `69-`79 -> 294259
VESPA 150 Super 150 VBC1T 2T AC `65-`79 -> 412373

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