CLIMBING TIMES FOR THE 2003 ETAPE

Speeds and times for each of the cols in the 2003 Etape du Tour are given in the table below. They were calculated for the following weights of rider + bike:

175 lb. = 79.2Kg (e.g. 10 stone rider + 35 lb of bike + clothes etc.)

200 lb. = 90.5Kg (e.g. 12 stone rider + 32 lb of bike + clothes etc.)

225 lb. = 101.8Kg (e.g. 14 stone rider + 29 lb of bike + clothes etc.)

These are only examples if you want to work out your own figures, climbing time is proportional to weight.

Power was calculated from the formula:

Power (Watts) = 2 x Weight(lb) x Speed(mph) x Gradient (as a fraction)

This formula is accurate enough at typical climbing speeds, though it does not allow for rolling resistance or wind resistance. Times are rounded to the nearest minute for clarity.

200 lb. rider & bike

Speed(mph)

Speed(mph)

Speed(mph)

Speed(mph)

Length

Length

CLIMB

Gradient

150W

200W

250W

300W

Km

Miles

Aubertin

7%

5.36

7.15

8.93

10.72

2.3

1.43

Soudet

7.50%

5

6.66

8.33

10

14.1

8.81

Larrau

10.50%

3.57

4.76

5.95

7.14

2.4

1.5

Bagargui

9.20%

4.07

5.43

6.79

8.15

8.8

5.5

200 lb. rider & bike

Time (hrs)

Time (hrs)

Time (hrs)

Time (hrs)

CLIMB

Gradient

150W

200W

250W

300W

Aubertin

7%

0.26

0.2

0.16

0.13

Soudet

7.50%

1.76

1.32

1.06

0.88

Larrau

10.50%

0.42

0.31

0.25

0.21

Bagargui

9.20%

1.34

1.01

0.81

0.67

Total time

=

3hrs 47min

2hrs 50min

2hrs 17min

1hr 53min

175 lb. rider & bike

Time (hrs)

Time (hrs)

Time (hrs)

Time (hrs)

CLIMB

Gradient

150W

200W

250W

300W

Aubertin

7%

0.23

0.17

0.14

0.11

Soudet

7.50%

1.54

1.15

0.92

0.77

Larrau

10.50%

0.36

0.27

0.22

0.18

Bagargui

9.20%

1.17

0.88

0.70

0.58

Total time

=

3hrs 19min

2hrs 24min

2hrs

1hr 39min

225 lb. rider & bike

Time (hrs)

Time (hrs)

Time (hrs)

Time (hrs)

CLIMB

Gradient

150W

200W

250W

300W

Aubertin

7%

0.30

0.22

0.18

0.15

Soudet

7.50%

1.98

1.48

1.19

0.99

Larrau

10.50%

0.47

0.35

0.28

0.23

Bagargui

9.20%

1.50

1.13

0.91

0.75

Total time

=

4hrs 15 min

3hrs 11min

2hrs 34min

2hrs 22min