I have a concrete floor in the wash bay covered in mud from 3 bikes, you want some more Hilly? I broke the nipple off the front brake cable after clipping a tree on my third loop. Sore ribs, the rain and dropping into the creek with no front brakes was a challenge, but hell fun. My two mates are about the same speed as me and it really was just a 64 klm race for us. My mate tried to fill me in in the creek, but because the mud was like porridge, the bike drove instead of spinning. Lucky for me as I was gone otherwise. I can't wait for the next one. I don't suppose anyone who was there found a Husqvarna kick start lever lying around. It was conspicuous by it's absence at the end of four loops!
Cheers,
K