Vespa performance

VMC RVA 110: New 110cc Cylinder Kit for Vespa 50 and PK 50

by

Mark Lancaster

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7th November 2026

Developed by VMC in collaboration with Gilardoni, the RVA 110 cylinder kit offers almost 110cc for Vespa 50 and PK 50 smallframe engines. It combines a 57mm bore with the original 43mm stroke and direct reed induction. VMC’s new RVA110 combines a 57mm bore with the original 43mm smallframe stroke, with direct reed induction. Developed…
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SIP’s new 177 all-rounder

by

Mark Lancaster

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1st October 2026

A new aluminium cylinder kit aims to give Vespa Largeframe owners usable road performance without sacrificing everyday manners. SIP has added a 177cc performance cylinder to its Vespa Largeframe range, developed around broad power delivery, touring reliability and scope for further tuning. Although the company classes it as a racing cylinder, the stated brief is…
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Inside Polini: 10 years of Project Polini and a visit to the factory

by

Mark Lancaster

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15th August 2026

Incredibly, it’s been 10 years since we began ‘Project Polini’, our longest-ever road test. What better way for Stan to mark the anniversary than with a visit to Polini HQ… Full disclosure: I’m a big fan of Polini. My relationship with the brand began back in 2016, when my previously trusty PX blew a hole…
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