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Crankshaft -BGM ORIGINAL Standard (rotary valve), 51mm stroke, 97mm conrod- conversion Vespa PK50 XL/XL2 to 125ccm (Ø 20mm cone)

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RP50200

€134.00

Dispatching between 26.03.2026 and 31.03.2026

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Details

Solid BGM crankshaft for the PX80 models. The PX80 was manufactured for the German market and has only 48mm stroke (PX125 = 57mm). The most common damage to the PX80 engines is a defective lower conrod bearing, usually caused by long service life or worn conrod thrust washers.

The BGM crankshaft has a solid bearing here and has no problems even with the large tuning cylinders (125cc conversion cylinder, DR135, Malossi 139).

As a special feature the BGM crankshaft has exactly the same intake control angle as an original Piaggio crankshaft. So it is perfect as a 1:1 replacement for an original crankshaft. Compared to an original crankshaft, the balance factor has been improved and the intake area rounded and polished.

The delivery includes the upper conrod bearing. New crankshaft bearings and shaft sealing rings can be ordered if required. Installation tools as well as complete engine revision kits for easy and damage-free installation are of course also available in the shop.

Stroke: 48mm

Piston pin Ã: 15mm
Connecting rod length: 105mm

Fits all PX80 engines (V8X1T/V8X1M)

More Information

More Information
Weight	1.500000
Barcode EAN13	4251389131755
Brand	BGM ORIGINAL
Availability	Factory order
Supplier reference	50200
Outlet	No
Ships in	Ask about availability
Fitment chart (old)	<!-- algus kataloog 2 --> <b>Kataloog 2 sobivused:</b><br><table><tr><th><b>Tootja</b></th><th><b>Mudel</b></th></tr><tr><td>MotoVespa</td><td>125 Primavera (engine 9NK)</td></tr><tr><td>MotoVespa</td><td>125 Primavera (engine 9NV)</td></tr><tr><td>MotoVespa</td><td>125 Primavera (engine 9T)</td></tr><tr><td>MotoVespa</td><td>50 (engine 06M, 3-speed)</td></tr><tr><td>MotoVespa</td><td>50 (engine 07M, 4-speed)</td></tr><tr><td>MotoVespa</td><td>75 (engine 08M)</td></tr><tr><td>MotoVespa</td><td>75 PR (engine 9PR)</td></tr><tr><td>MotoVespa</td><td>75 Primavera (engine 9PK)</td></tr><tr><td>MotoVespa</td><td>75 Primavera (engine 9PN)</td></tr><tr><td>MotoVespa</td><td>PK 125 S (engine 56M)</td></tr><tr><td>MotoVespa</td><td>PK 125 S elestar (engine 66M)</td></tr><tr><td>MotoVespa</td><td>PK 125 XL (engine 97M)</td></tr><tr><td>MotoVespa</td><td>PK 125 XL E (engine 100M)</td></tr><tr><td>MotoVespa</td><td>PK 75 S (engine 57M)</td></tr><tr><td>MotoVespa</td><td>PK 75 S elestar (engine 67M)</td></tr><tr><td>MotoVespa</td><td>PK 75 S junior (engine 67M)</td></tr><tr><td>MotoVespa</td><td>PK 75 XL (engine 96M)</td></tr><tr><td>MotoVespa</td><td>PK 75 XL E (engine 104M)</td></tr><tr><td>MotoVespa</td><td>Super (engine 762M)</td></tr><tr><td>Vespa (Piaggio)</td><td>PK 50 S Lusso (V5X2T)</td></tr><tr><td>Vespa (Piaggio)</td><td>Vespa 50 (V5SA1T)</td></tr><tr><td>Vespa (Piaggio)</td><td>Vespa 50 N Special (V5B3T 97625-)</td></tr><tr><td>Vespa (Piaggio)</td><td>Vespa 50 N Special (V5B3T)</td></tr><tr><td>Vespa Augsburg</td><td>Vespa 50 S (type 5S1, V5SA1T)</td></tr><tr><td>Vespa Classic</td><td>PK 125 S Elestart VMX5T</td></tr><tr><td>Vespa Classic</td><td>PK 125 S VMX5T</td></tr><tr><td>Vespa Classic</td><td>PK 125 VMX1T</td></tr><tr><td>Vespa Classic</td><td>PK 50 S Elestart V5X2T</td></tr><tr><td>Vespa Classic</td><td>PK 50 S V5X2T</td></tr><tr><td>Vespa Classic</td><td>PK 50 SS Elestart V5S1T</td></tr><tr><td>Vespa Classic</td><td>PK 50 SS V5S1T</td></tr><tr><td>Vespa Classic</td><td>PK 50 V5X1T</td></tr><tr><td>Vespa Classic</td><td>PK 50 XL Elestart V5X3T (-89)</td></tr><tr><td>Vespa Classic</td><td>PK 50 XL FL2 V5X5T (92-)</td></tr><tr><td>Vespa Classic</td><td>PK 50 XL N V5X5T (-92)</td></tr><tr><td>Vespa Classic</td><td>PK 50 XL V5X3T (-89)</td></tr><tr><td>Vespa Classic</td><td>PK 50 XL2 Elestart V5X3T (90-)</td></tr><tr><td>Vespa Classic</td><td>PK 50 XL2 V5X3T (90-)</td></tr><tr><td>Vespa Classic</td><td>PK 50 XLS V5S2T</td></tr><tr><td>Vespa Classic</td><td>PK 80 S Elestart V8X5T</td></tr><tr><td>Vespa Classic</td><td>PK 80 S V8X5T</td></tr><tr><td>Vespa Classic</td><td>Primavera 125 ET3 VMB1T</td></tr><tr><td>Vespa Classic</td><td>Primavera 125 VMA2T</td></tr><tr><td>Vespa Classic</td><td>Vespa 125 Nuova VMA1T</td></tr><tr><td>Vespa Classic</td><td>Vespa 50 FL V5N1T</td></tr><tr><td>Vespa Classic</td><td>Vespa 50 HP V5N2T</td></tr><tr><td>Vespa Classic</td><td>Vespa 50 N Elestart V5A3T</td></tr><tr><td>Vespa Classic</td><td>Vespa 50 N Elestart V5B2T</td></tr><tr><td>Vespa Classic</td><td>Vespa 50 N Elestart V5B4T</td></tr><tr><td>Vespa Classic</td><td>Vespa 50 N Special V5A2T</td></tr><tr><td>Vespa Classic</td><td>Vespa 50 N Special V5B1T</td></tr><tr><td>Vespa Classic</td><td>Vespa 50 N Special V5B3T</td></tr><tr><td>Vespa Classic</td><td>Vespa 50 Rush Elestart V5X4T</td></tr><tr><td>Vespa Classic</td><td>Vespa 50 Rush V5X4T</td></tr><tr><td>Vespa Classic</td><td>Vespa 50 S 63/90 V5SA1T</td></tr><tr><td>Vespa Classic</td><td>Vespa 50 Sprinter SR V5SS2T</td></tr><tr><td>Vespa Classic</td><td>Vespa 50 Super Sprint SS V5SS1T</td></tr><tr><td>Vespa Classic</td><td>Vespa 90 Racer V9SS2T</td></tr><tr><td>Vespa Classic</td><td>Vespa 90 Super Sprint V9SS1T</td></tr><tr><td>Vespa Classic</td><td>Vespa 90 V9A1T</td></tr></table><!-- lopp kataloog 2 --><br>