I did 13 laps last year on a bike that I’d only ridden for 20 minutes before after breaking my Kona and only spotting the crack on the Friday evening! 96miles. I’m aiming for the 100mile mark this year. Each lap is between 7 and 8 miles, so 50 minute laps. Naturally this depends on the weather. Id never ridden 12 hors solo before as I normally do teams or pairs.
Back on topic, you only need lights good enough for 2 hours before Midnight and 4 hours after and the course isnt too technical that you need max beam for any of it.
Best event of the year by far.