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Vert Spd to Tgt: The rate of ascent or descent to a
predetermined altitude. You must be navigating for this data
to appear.
VMG: The speed at which you are closing on a destination along
a route. You must be navigating for this data to appear.
VO2 Max. Standard Ratings
These tables include standardized classifications for VO2 max. estimates by age and gender.
Males
Percentile
95
80
Good
60
Fair
40
0-40
Females
Percentile
95
80
60
40
Poor
0-40
Data reprinted with permission from The Cooper Institute. For more information, go to www.CooperInstitute.org.
FTP Ratings
These tables include classifications for functional threshold
power (FTP) estimates by gender.
Males
Watts per Kilogram (W/kg)
Superior
5.05 and greater
Excellent
From 3.93 to 5.04
Good
From 2.79 to 3.92
Fair
From 2.23 to 2.78
Untrained
Less than 2.23
Females
Watts per Kilogram (W/kg)
Superior
4.30 and greater
Excellent
From 3.33 to 4.29
Good
From 2.36 to 3.32
Fair
From 1.90 to 2.35
Untrained
Less than 1.90
FTP ratings are based on research by Hunter Allen and Andrew
Coggan, PhD, Training and Racing with a Power Meter
(Boulder, CO: VeloPress, 2010).
Wheel Size and Circumference
The wheel size is marked on both sides of the tire. This is not a
comprehensive list. You can also use one of the calculators
available on the Internet.
Wheel Size
12 × 1.75
14 × 1.5
14 × 1.75
16 × 1.5
16 × 1.75
18 × 1.5
18 × 1.75
20 × 1.75
20 × 1-3/8
22 × 1-3/8
22 × 1-1/2
30
20-29
30-39
55.4
54
51.1
48.3
45.4
44
41.7
40.5
<41.7
<40.5
20-29
30-39
49.6
47.4
43.9
42.4
39.5
37.8
36.1
34.4
<36.1
<34.4
L (mm)
935
1020
1055
1185
1195
1340
1350
1515
1615
1770
1785
Work: The accumulated work performed (power output) in
kilojoules.
40-49
50-59
52.5
48.9
46.4
43.4
42.4
39.2
38.5
35.6
<38.5
<35.6
40-49
50-59
45.3
41.1
39.7
36.7
36.3
33
33
30.1
<33
<30.1
Wheel Size
24 × 1
24 × 3/4 Tubular
24 × 1-1/8
24 × 1-1/4
24 × 1.75
24 × 2.00
24 × 2.125
26 × 7/8
26 × 1(59)
26 × 1(65)
26 × 1.25
26 × 1-1/8
26 × 1-3/8
26 × 1-1/2
26 × 1.40
26 × 1.50
26 × 1.75
26 × 1.95
26 × 2.00
26 × 2.10
26 × 2.125
26 × 2.35
26 × 3.00
27 × 1
27 × 1-1/8
27 × 1-1/4
27 × 1-3/8
650 × 35A
650 × 38A
650 × 38B
700 × 18C
700 × 19C
700 × 20C
700 × 23C
700 × 25C
60-69
70-79
45.7
42.1
39.5
36.7
35.5
32.3
32.3
29.4
<32.3
<29.4
60-69
70-79
37.8
36.7
33
30.9
30
28.1
27.5
25.9
<27.5
<25.9
L (mm)
1753
1785
1795
1905
1890
1925
1965
1920
1913
1952
1953
1970
2068
2100
2005
2010
2023
2050
2055
2068
2070
2083
2170
2145
2155
2161
2169
2090
2125
2105
2070
2080
2086
2096
2105
Appendix
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