Most riders have no idea if their TT bike would actually pass inspection.

Dave sits down with Stephan, a national road cycling commissaire based at

Cycle Lab N1 City, who measures TT bikes against UCI regulations for a

living — and puts a bike through the exact test riders face on race day.

Before the demo: reaction to the biggest story to come out of the Tour de

France this week. Jonas Vingegaard crashed out of Stage 15 on the descent

into Plateau de Solaison, ending his bid for a third yellow jersey with a

fractured collarbone. Remco Evenepoel took the stage win, his first road

victory at the Tour, while Tadej Pogačar showed real sportsmanship in how

he handled the closing kilometres.

Then it's down to business: what "default" position actually means, why

the UCI cares about 750mm and category height limits, and why a bike that

looks fine to the eye can fail on a technicality worth three millimetres.

# === CHAPTERS ===================================

0:00 — Cold Open: Coffee, Colours & Cycle Lab N1 City

1:49 — Meet Stephan: Commissaire & TT Bike Specialist

3:37 — Tour de France: Vingegaard's Crash & Pogačar's Sportsmanship

5:32 — What Makes a Commissaire Qualified to Judge Your Bike?

6:44 — Why the UCI Regulates TT Bikes: Man vs Machine

10:42 — The Jig Demo: Measuring a "Default" Position

18:10 — The Non-Compliant Bike Example

19:44 — Category Heights Explained: Why Taller Riders Get Less Room

25:41 — The Jig Built for Western Province Cycling

26:17 — Why the Time Trial Is the Purest Test in Cycling

30:35 — Chasing KOMs & Wrap-Up

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