Vespa Rubber Bush – important little detail

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The little part called Rubber Bush or also known as Silent Rubber is an important detail that often might get overlooked. The rubber block is very important for having a long and healthy friendship with your vespa and especially all it’s delicate metal parts.

What does the silent rubber actually do?

As the name already suggests, it’s practical for reducing noise while on the road. By damping the vibrations of the chassis, this inconspicuous part also ensures greater comfort for the driver. At the same time, it regulates driving stability and ensures increased driving safety. A silent rubber or silent block can be used in several places.

Silent rubber for shock absorbers

  • Manufacturer: PLCCorse
  • for: Shock absorber mount
  • 39 x 32 x 15 mm
  • Diameter M 10, rear, PLC
  • fits for: Vespa 50-125/PV/ET3/PK/S/XL/XL2/Automatica/125 VNA-TS/150 VBA-Super/160 GS/180 SS/Rally/PX80-200/PE/Lusso/T5/Cosa
  • currently costs: 35 €, incl. VAT, plus shipping costs
  • available from stock within 3 days

The silent rubbers for the Vespa 125 VNA-TS/150 VBA-Super/PX80-150/PE/Lusso are an innovative solution that adopts the design of the later models. Although they are not fitted as standard, they make installation considerably easier and offer improved functionality. Silent rubbers from SIP reproductions provide all the positive characteristics that we know from the original part.

Silent rubber for engine swing-arm

  • Manufacturer: Piaggio
  • for: Engine swing arm left or right
  • fits for: Vespa 200 Rally 2°/P200 E/PX200 E/Lusso/’98/MY
  • currently costs 37 €, incl. VAT, plus shipping costs, available from stock within 1-3 working days

Silent rubber for crankcase

  • Manufacturer: S.I.P, reproduced
  • Silent rubber for: Motor housing
  • 39 x 21 x 10 mm, left or right
  • fits for: left for Vespa 50 2°/N/L/R/S 2°/Special/SR/SS/PK50/S/SS
  • right for: PK50 XL FL/HP/
  • currently costs € 6.80 incl. VAT plus shipping costs

Please note
Always keep your hands off rubbers that have already hardened. They transfer vibrations directly into the bodywork instead of dampening them. They can accelerate the tearing of sheet metal parts, so they are not only counterproductive but also have a destructive effect.


When replacing the silentblocs, replace the spacer bushes and washers at the same time.
As the company PLC is dedicated to racing, it should be noted: The colors orange and Gt-green are used in racing.
The colors green and black, which are somewhat softer, are intended for everyday use.

If you optimize your Vespa with new, harder shock absorbers, you should also replace the
Silent rubbers, which have been designed for racing.
With this in mind, please also observe and comply with the StVO.

Important to know
Anyone who has ordered a silent rubber from the SIP Scootershop, for example, and receives the delivery may be surprised.
Piaggio offers “original” silent rubber that is much narrower than the parts previously available. This is neither a wrong delivery nor a wrongly ordered product, but is actually the case and is intended and correct.

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