SIP Performance shockabsorber for VESPA Vintage - Tutorial

In this video we want to explain the installation of the SIP Performance shockabsorber into a Vespa scooter.

 

SIP Performance shock absorbers for all Vespa models with a separate spring and damper suspension. Aluminium, CNC machined, anodised

Almost all shock absorbers currently available for Vespa models with a separate spring and damper suspension have no effective damping function, mostly due to their technical layout. Even shock absorbers with adjustable compression damping provide a noticeably stiffer suspension, although the expanding spring is not damped or slowed. This leads to the shock absorber expanding quickly, sending a jolt through the handlebars.

One of the main aims in designing the SIP performance shock absorber was to provide optimal damping during the rebound phase. The rebound damping ensures a clean and even shock absorber expansion at a controllable rate. This causes, for example during braking, the front end of the scooter to recover softly and remain controllable without acting like a pogo stick! The damping process takes place in two seperate chambers, one filled with gas, the other with oil. Shock bushes are made out of polyurethane rubber.

These shock absorbers are available with two separate grades of stiffness :
60 PSI: for comfortable riding or race track useage
100 PSI: for XXL guys or lots of luggage
The stiffer the damper the higher the PSI rating (the quicker the rebound). Another important factor is the choice of spring. We recommend springs with at least a 33% increase in stiffness or STO springs.

 

Part list

 

More videos you can find on our Youtube tutorial channel.

 

SIP Performance shock absorber Installation

 

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