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Pro Road Racing Frame Geometry

Size*
top tube length
seat tube angle
set back
chainstay length
stand over height
b.b. drop
head tube angle
head tube length
wheel base
46 **
50
75
11.9
39
71.5
4
72
9.1
93.4
48
51.5
74.5
12.7
41.5
74.0
7
72
9.1
97.0
50
52.5
74.5
13.4
41.5
76.2
7
72.5
10.0
97.1
52
53
74
14.3
41.5
77.4
7
73
11.3
97.2
54
54.8
73.5
15.3
41.5
79
7
73
12.8
98.0
56
56
73
16.4
41.5
81.3
7
73.5
15.0
98.8
58
57
73
17.0
41.5
82.3
7
74
16.0
99.4
60
58.3
72.5
18.0
41.5
84.4
7
74
18.0
100.0
62
60
72.25
19.0
41.5
85.8
7
74
20.0
101.0
64
61
72
19.8
41.5
87.3
7
74
22.0
102.0
66
63.3
71.5
20.8
41.5
88.0
7
74
24.0
104.3

Tri Time Trial and Triathlon Frame Geometry

Size*
top tube length
seat tube angle
set back
chainstay length
stand over height
b.b. drop
head tube angle
head tube length
wheel base
46
49
77
10.3
39
71.0
4.0
72.5
9.1
93.4
48
50
77
10.8
39
71.5
4.0
72.5
9.1
94.4
50
51.5
77
11.2
39
72.1
4.5
72.5
10.0
96.0
52
53.5
77
11.6
39
73.8
4.5
73
11.3
97.8
54
55.5
76.5
12.5
39
74.8
4.5
73
12.8
99.6
56
57
76.5
13
39 (40.5)
77.4 (78.4)
4.5 (7.0)
73 (72.5)
15.0 (12.8)
101 (103.6)
58
58
76..5
13.6
39 (40.5)
78.9 (79.6)
4.5 (7.0)
73 (72.5)
16.0 (13.3)
102 (104.6)
60
60
76
14.5
39 (40.5)
79.5 (82.6)
4.5 (6.2)
73 (72.5)
18.0 (16.5)
104 (106.7)

Frame sizing note:

When comparing our frames with your current frame, use the standover height and top tube length for comparison. For the Tri frames, we've found that a longer top tube and shorter stem gives better weight distrobution. A 9 or 10cm stem would be ideal for Tri frames and a 10 to 12 cm stem is good for Pro frames.