Question 1

How long and how hilly is the IRONMAN Chattanooga - ZOOT Bike Course course?

Accepted Answer

182.3 km with 1625 m of climbing, in 10 climbs. The climbing is read off a terrain model of the ground under the route rather than off a barometer, which drifts with the weather, so a head unit will often show a different figure.

Question 2

How long does the IRONMAN Chattanooga - ZOOT Bike Course bike course take at 200 W?

Accepted Answer

6:22 give or take 6 minutes on the hoods, 6:00 give or take 7 minutes on clip-on aerobars, 5:42 give or take 8 minutes on a time-trial bike, for a 75 kg rider on a 9 kg bike in still air. The band is there because a drag area picked from a list is only good to about 0.02 m². The power is held steady everywhere but the steep descents, where the rider freewheels, and the position is held throughout, which on a hilly course flatters the time-trial bike.

Question 3

What does wind cost on the IRONMAN Chattanooga - ZOOT Bike Course course?

Accepted Answer

A 20 km/h wind costs between 5 minutes and 32 minutes at 200 W on the hoods, depending on where it blows from: worst from the south-west, kindest from the south-east. A wind always costs time over a whole course, because a headwind takes more than the same tailwind gives back.

Question 4

How do I predict my own time on this course?

Accepted Answer

Open it in the predictor, below the table. Set your weight, what you will hold on each kind of slope and the position you will ride in, and it answers with the time and the band around it, climb by climb. Nothing to upload: the course is already there.

The road in the order you meet it