Hey there Kelowna
I assume you are referring to doing the Aerobic TT on 15-20km of flat?
The reason a flat course is suggested, or that you do it an indoor trainer is because you need to keep your heart rate an even 8 beats below your lactate threshold.
Hills make it difficult to keep your heart rate even.
The step-ups you can do on less than flat ground.
If your normal TT course is a hilly one than that is what you work with, I guess. The 20km the town is a great warm up because you won't be pushing it too far.
I'm interested in hearing what you do in prep for your TTs too![]()



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