Originally Posted by DannoXYZ
Go as hard as you can for as long as you can until your legs give out completely.
I wouldn't do this unless you're in a strength phase in your training. This is very close to doing weight reps until failure and would require an adjustment in your training workload to allow for muscle recovery.
Good look at this from Cycling News as it fits into a recovery week:
http://www.cyclingnews.com/fitness/?...6/letters02-13
The two Pro 1/2 guys I've done/do drills with keep them short and below maximum effort during the race season.