Dexter Racing visits the Open Day

DEXTER Racing - Racing technology from Trentino

Anyone who is active in the classic Vespa scene will sooner or later stumble across DEXTER Racing - and get stuck. Not because of big words, but because of parts that deliver on the track and in everyday life. Behind the name is Luca Moscon from Mezzolombardo in Trentino: engineer, developer, manufacturer and driver all in one. He does not build off-the-peg tuning products in his workshop. DEXTER produces heavy-duty racing components - developed on the test bench and verified on the track. And they do so with a bang: at the 24-hour endurance race in Whilton Mill in June 2025, Luca not only left the competition behind, but also set the benchmark.

More laboratory than warehouse: vertical integration that you drive

At Luca, the CNC spindles are whirring, it smells of lubricant and fresh aluminum chip dust, the test benches are running hot. The machine park is impressively broad for a one-man manufactory - which is precisely the reason for the vertical range of manufacture that is rare today: from the raw part to the ready-to-use component, almost everything is in-house.

The special thing about it: Luca doesn't just develop - he translates his ideas directly into professional production. His moving prototype is basically no longer a Vespa, but a rolling DEXTER feasibility study. Frame, engine housing, cylinder, crankshaft, gearbox, exhaust, chassis, brake system - all designed and manufactured in-house. What is convincing on paper has to go through the toughest selection process at Luca: Racing.

Know-how conceived in components

Many DEXTER parts come directly from the "Vespa Proto" project, where they were tested under extreme conditions. The result: uncompromisingly function-oriented components. A few highlights:

• Engine housing: DEXTER's own design, constructed and cast for extreme continuous load.
• Supernova 180 cylinder: Air-cooled, manufactured in-house, with pneumatic Rotax exhaust control for a wide, very easy-to-ride band with high performance and reliability.
• Crankshaft: DEXTER BIG, 94 mm diameter, 45 mm width, 56.7 mm stroke, 110 mm connecting rod; polygonal pinion mount to prevent relative movement.
• Gearbox: DEXTER Endurance, module with large tooth module, 5 mm wider than standard, 6-arm shift claw. Shift pattern with top idle (N-1-2-3-4), specially stepped for the race track: a long first gear (longer than the second gear of a PV125), as well as short third and fourth gears - ideal for riding tight bends in first gear.
• Exhaust: In-house development, designed for torque window and continuous power.
• Clutch: DEXTER 5-discs with polygonal connection - form-fit instead of slippery.
• Frame: DEXTER aluminum frame combined with rule-compliant standard parts - stiff, light, precise.
• Fairing parts: Genuine carbon (weight saving compared to the previous steel version: 15kg(!).
• Fork: ZIP SP as the basis, optimized for DEXTER kinematics.
• Front shock: ABSOLUTELY NEW - DEXTER monoblock with integrated bracket for radially mounted brake callipers; upper mount with uniball joint.
• Brake: DEXTER 6-piston caliper with cooling fins, ceramic pads made from Ducati 916 technology and over 70 % more friction surface than a standard 4-piston caliper with 82 mm hole spacing. Mega doesn't mean marketing here, it means friction coefficient.

In short, it's almost impossible to list everything that Luca designs, manufactures and tests himself in the toughest racing conditions. Sometimes we wonder whether he has a few clones in his secret laboratory - in theory, of course.

Success with an announcement: Whilton Mill 24h, June 2025

From the lab to the track: Luca is extremely successful on European racetracks. There was a very strong overall victory at Whilton Mill in June 2025 - and his driver Ahron also entered the track record in the list: 54.9 seconds, set on lap 377. If a material is still setting records after so many race laps, it's clear that this stuff is not only fast, but also reliable under gruelling conditions.

Luca Moscon in the Scooter Center - test bench run in the video

DEXTER boss Luca visited us at the Open Day. Fresh from the Pomposa race track, after around 500 kilometers in his wrist, he heaved his - quote - "unwashed" racing scooter directly onto our test bench. You can see the result in the video. At this point, the scooter had not only already completed the 24-hour race in England unscathed, it had also completed a full 7-hour race in Pomposa, also without any failures! The fact that the Proto, even though it revs up to 12000 rpm continuously and is air-cooled (as it should be), still delivers plenty of power on our new test bench was also quite impressive.

Racing Vespa S No. 78 - DEXTER Racing on the SC dyno

Why we celebrate DEXTER Racing

• Engineering skill and CNC precision from Trentino
• Race track as quality control - real continuous load instead of Sunday laps
• Plug-and-play thought, so that classics drive instead of milling
• Exceptional vertical range of manufacture in our own factory
• Consistently robust design for many hard kilometers

We have had an extremely good relationship with Luca and his team for years. Short lines of communication, clear words, quick solutions - that makes partnership fun. And best of all: you can get the parts directly from us.

We are delighted to be working with Luca - and we are proud to list his products in our online store.

To the DEXTER range in the SC-Shop

More than two wheels: Luca's APE passion

In addition to Vespa technology, Luca's heart also beats for APE tricycles. He competes successfully in Italian championships. A story of its own - which we will be happy to tell you soon.

About the name "Dexter"

If you've been wondering where the name comes from: friends named Luca "Dexter" early on - based on Dexter's lab, the cult series from the 1990s. A highly intelligent inventor with a secret laboratory in his parents' house? When it comes to Vespa technology, Luca has come surprisingly close to his namesake: lots of brains, lots of lab work - and in the end, parts that simply work. DEXTER Racing.

What's currently in Luca's scooter

• Engine housing: DEXTER
• Cylinder: SuperNova 180 with exhaust valve (64 x 56.7), air-cooled, pneumatic Rotax actuation
• Exhaust: DEXTER
• Carburetor: VHSB38
• Crankshaft: DEXTER BIG, 94 mm diameter, 45 mm width, 56.7 mm stroke, 110 mm connecting rod, polygonal pinion mount
• Gearbox: DEXTER Endurance, module with coarse teeth, 5 mm wider than original, 6-arm shift claw, top idle (N-1-2-3-4); ultra-long first gear, intermediate second, short third and fourth
• Clutch: DEXTER, 5-disc, polygonal teeth
• Frame: DEXTER made of aluminum with rule-compliant standard parts
• Fork: ZIP SP
• Front suspension strut: DEXTER monoblock with integrated mount for radial brake calliper
• Brake caliper: DEXTER 6-piston with cooling fins, ceramic pads based on Ducati 916, over 70 % more friction surface than standard 4-piston calipers

Manufactured in Lucas workshop. Tested on the race track. And yes - it's addictive.

Do you have any questions about parts, setups or availability?

Write to us - we know the DEXTER parts from practical experience and will be happy to advise you.