Thinking of doing a 10 mile time trial fixed, Eddy Merckx style bike (but with front brake). What gearing would you use? The course has several turns, a slight hill over about 400 yards, and typically a 10 mph tail wind at the start and 10 mph head wind at the end. Would you gear attempting to estimate your average speed, then figure about 95-100 rpms at the average? Better to gear too low or too tall? Thoughts? Thanks.