Originally Posted by
Tom Stormcrowe
Maintain a good base and it becomes a nonissue. I'd do intervals, myself, break it up and do a cycle of push hard 1 day and easy recovery on the next. Do a 6 day cycle and one day off the bike.
+1
Will add that you can just pick a close hill, and do up and down intervals. This will greatly increase you fitness,
Try to ask this question at the Triathlon forum.