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RMS Cylinder Kit d=38.4mm Vespa S / Special / Elestart 50cc

RMS Item no.: R100080521

RMS Cylinder Kit d=38.4mm Vespa S / Special / Elestart 50cc


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Data Sheet
Suitable for (5)


RMS, Italy, is a prolific manufacturer of OEM quality aftermarket parts for many scooter brands, including Vespa Vintage and Vespa Modern parts. Their catalogue is extensive, with equipment made for even the most vintage models. Apart from OEM quality parts, RMS designs tuning parts so you can boost your moped / scooter engine.

This is a RMS Cylinder Kit 50cc Vespa S / Special / Elestart; The 38.4mm bore will not increase displacement, but as it is a "Sport" cylinder, you will notice a nice increase in torque and wider power band. More power means you have to adjust the rest of your set-up a bit - we definitely recommend a reinforced crankshaft capable of dealing with the increase in power.


  • including: cylinder + piston + gaskets
  • 38.4mm diameter => 50cc
  • for Vespa V5A1 - V5B1 - V5B2 50cc

Data Sheet

Name RMS Cylinder Kit d=38.4mm Vespa S / Special / Elestart 50cc
Item No. R100080521
Brand RMS
Homologation Yes
Displacement 50cc
Stroke Original
Conrod Length Standard
Product Line Sport
Material Cast Iron
Piston Pin Original

Your product goes with the following manufacturers and their models:


50 PK S Automatic 1984 (VA51T)

Vespa V50 V90 PV ET3

50 N 1963 - 1971 (V5A1T)

50 R 1969 - 1983 (V5A1T)

50 Special 1973 - 1975 (V5B1T)

V50 V90 PV ET10 50cc Special Elestart (V5B2T)

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