IAME: The Engine Empire from Bergamo

Strip the bodywork off grassroots karting almost anywhere on earth and you will find the same green-topped cylinder. IAME's X30 is not just an engine; it is a global racing ecosystem with its own ladder, its own world final and its own economy.

Origins

IAME S.p.A. — Italian American Motor Engineering — was founded in 1968 and operates from the province of Bergamo, near Milan. The company became the umbrella for some of karting's most storied engine marques: Parilla, Komet and Sirio, names that dominated grids through the 100cc era. Long before spec racing, works Parilla and Komet units were championship-winning weapons in open competition, and IAME grew into the world's largest manufacturer of kart engines.

The masterstroke came with the X30, a 125cc touch-and-go engine designed for sealed, single-make competition. No tuner arms race, no exotic maintenance bills — just identical hardware and a fixation on driving. National X30 series multiplied across Europe, the Americas, Asia and Oceania, and IAME added the KA100, the air-cooled unit that now underpins national class structures in Australia and much of American club racing.

How it shaped karting

IAME proved that a manufacturer could run a parallel world of karting outside the open-homologation arms race governed by FIA Karting:

• The X30 pyramid: Mini and Junior feeders into X30 Senior, Master and Shifter divisions, replicated in dozens of national series — the full story is in our X30 class history.
• The IAME International Final: the brand's world final, hosted at the international karting circuit at Le Mans, drawing 250-plus qualifiers who earn their places through national X30 series. It is the amateur-accessible answer to a world championship.
• Cost control as philosophy: sealed engines and controlled parts kept fields deep while open classes thinned, a template later refined in parallel by Rotax and Vortex ROK. For most of the world's racers, an X30 series is simply what karting is — the class they start in, stay in and measure themselves by.

The heritage side never stopped either: IAME-badged engines have kept winning in FIA-sanctioned competition, keeping the Parilla lineage alive at the sharp end.

Today

The X30 remains the most raced single-make platform in the sport, and the Le Mans International Final is the highlight of the calendar for thousands of national-level racers — from teenagers chasing factory attention to over-30 Masters. In the United States, X30 headlines Superkarts! USA competition, while the KA100 carries Australian karting's KA classes.

On wkr.live, X30 competition drives our dedicated X30 Senior rankings, with every major national final and the International Final itself listed in the calendar. Cross-reference our KA3 Senior standings to see IAME's reach at both ends of the earth — the same Bergamo engineering, from Le Mans to Melbourne club racing.