I can see the appeal of the minimalist approach, but I got a puncture at Bristol Bike Fest and lost 5 minutes repairing it. Walking the rest of the lap would have cost me 30 minutes.
Maybe if you’re there to win and 5 minutes will cost you the race so it’s not worth continuing, travel as light as possible.
If you’re a mid pack rider and 5 minutes just drops you a couple of places, be prepared.
Oh, and Graham’s top tip for the day;
If you’re using CO2 cartridges, make sure you’re familiar with how the adapter works so you don’t waste 5 minutes screwing it all together in the wrong order, wasting the CO2 and ending up using a hand pump when the job should take less than a minute. 🙄