750ml. Steadily paced, was surprisingly not so scary for a first HC climb. First section toward shard bend most difficult. Felt easier after sharp left bend up. Again ass discomfort, right shoe wasn't tight enough and felt strange (discovered at the summit). Getting up out of the saddle requires shifting down at least two. Rode mostly in 34-(25-28-32) range. Goal was to get to the top in 1h15m averaging 13.5km/h. Instead I spinned at 11.4 and mostly around the 10 which was already hard enough. 2/3 on the way calfs started to feel cramp-like, no real pain in the legs or anything. Overall comfortable, fun and quite challenging. Spectacular views at times through the trees. Downhill is tougher than i thought, but amazing to do. Lot of peddling, first section from summit smoother surface and almost no breaking apart from the 25km/h turn(s?), less debris and put holes. Second after sharp bend way more technical and more cornering, therefore also more fun. The pics (beautiful ones at least) by reubendotdotdot.com