Which hub was she using and what failed?
If you say DT Swiss 240 I will only be a little disappointed.
Aren't you required to have two lights in PBP?
Nope, just a suggestion: "Bikes must possess a lighting system powerful enough to be seen at a distance of 100 m from the front and 150 m from the rear. It must be securely and permanently fixed on the bike, even during daytime, and in working order at all times. Flashing LEDs at the rear are forbidden. Backup lighting systems are strongly recommended."
Which hub was she using and what failed?
If you say DT Swiss 240 I will only be a little disappointed.
Aren't you required to have two lights in PBP?
Nope, just a suggestion: "Bikes must possess a lighting system powerful enough to be seen at a distance of 100 m from the front and 150 m from the rear. It must be securely and permanently fixed on the bike, even during daytime, and in working order at all times. Flashing LEDs at the rear are forbidden. Backup lighting systems are strongly recommended."