Downs Pushing. You will do a lot of pushing. Pushing a 40lb bike caked in mud up a slippery, steep slope. Loads of fun. Crashing. The faster you travel, the more crashes hurt. Given that DH bikes go faster than any other kind of bike... well, you get the picture. Racing. Two days of nervous toiletting and battling demons rewarded by underachievement and one of the most soul-crippling drives home known to man