Echelon II

With a sleek and fast look, the Echelon helmet presents a compact profile on a rider's head. And with increased ventilation and an ergonomic design, you're guaranteed an exceptional fit, tremendous comfort, and ample ventilation. Accordingly, it's the ideal helmet for road cycling enthusiasts.

With a sleek and fast look, the Echelon helmet presents a compact profile on a rider's head. And with increased ventilation and an ergonomic design, you're guaranteed an exceptional fit, tremendous comfort, and ample ventilation. Accordingly, it's the ideal helmet for road cycling enthusiasts.

Helmet Size Chart

Model
Fit Size
Hat Size
Inch
Metric
Airnet
Small
6-3/8 -
7
20"-
22"
51-
56cm
Medium
6 7/8-
7 3/8
21 3/4"-
23 1/4"
55-
59cm
Large
7 3/8-
7 7/8
23 1/4"-
24 3/4"
59-
63cm
Align
One Size
6 3/4-
7 3/4
21 1/4"-
24 1/2"
54-
62cm
Ambush / Ambush Comp
Small
6 3/8-
7
20"-
22"
51-
56cm
Medium
6 3/4-
7 1/4
21 1/4"-
23"
54-
58cm
Large
7 1/8-
7 5/8
22 1/2"-
24"
57-
61cm
X-Large
7 3/8-
7 7/8
23 1/4"-
24 3/4"
59-
63cm
Aspire
Small
6 3/8-
7
20"-
22"
51-
56cm
Medium
6 7/8-
7 3/8
21 3/4"-
23 1/4"
55-
59cm
Large
7 3/8-
7 7/8
23 1/4"-
24 3/4"
59-
63cm
Centro
One Size
6 3/4-
7 3/4
21 1/4"-
24 1/2"
54-
62cm
Chamonix
One Size
6 3/4-
7 3/4
21 1/4"-
24 1/2"
54-
62cm
Covert
Small
6 1/2-
7
20 1/2"-
22"
52-
56cm
Medium
7-
7 1/2
22"-
23 1/2"
56-
60cm
Large
7 1/2-
7 7/8
23 1/2"-
24 3/4"
60-
63cm
Covert Kids
X-Small
6-
6 5/8
18 1/2"-
20 3/4"
47-
53cm
Small
6 1/2-
7
20 1/2"-
22"
52-
56cm
Medium
7-
7 1/2
22"-
23 1/2"
56-
60cm
Dissident / Dissident Comp
Small
6 3/4-
6 7/8
21 1/4"-
21 3/4"
54-
55cm
Medium
7-
7 1/8
22"-
22 1/2"
56-
57cm
Large
7 1/4-
7 3/8
22 5/8"-
23"
58-
59cm
X-Large
7 1/2-
7 3/4
23 1/2"-
24 1/4"
60-
62cm
Duet
One Size
6 1/4-
7 1/4
19 3/4"-
23"
50-
58cm
Echelon
Small
6 3/8-
7
20"-
22"
51-
56cm
Medium
6 7/8-
7 3/8
21 3/4"-
23 1/4"
55-
59cm
Large
7 3/8-
7 7/8
23 1/4"-
24 3/4"
59-
63cm
Evade / Evade Tri
Small
6 3/8-
7
20"-
22"
51-
56cm
Medium
6 7/8-
7 3/8
21 3/4"-
23 1/4"
55-
59cm
Large
7 3/8-
7 7/8
23 1/4"-
24 3/4"
59-
63cm
Flash
One Size
6 1/4-
7 1/4
19 3/4"-
23"
50-
58cm
Flash
One Size
7-
8
22"-
25 1/4"
56-
64cm
Mio
One Size
< 6-
6 3/8
18"-
20"
46-
51cm
Prevail
Small
6 3/8-
7
20"-
22"
51-
56cm
Medium
6 7/8-
7 3/8
21 3/4"-
23 1/4"
55-
59cm
Large
7 3/8-
7 7/8
23 1/4"-
24 3/4"
59-
63cm
Propero 3
Small
6 3/8-
7
20"-
22"
51-
56cm
Medium
6 7/8-
7 3/8
21 3/4"-
23 1/4"
55-
59cm
Large
7 3/8-
7 7/8
23 1/4"-
24 3/4"
59-
63cm
S-Works TT
X-Small/Small
6 3/8-
7 1/8
20"-
22 1/2"
51-
57cm
Medium/Large
6 3/4-
7 1/2
21 1/4"-
23 1/2"
54-
60cm
Sierra
One Size
6 1/4-
7 1/4
19 3/4"-
23"
50-
58cm
Shuffle Child
One Size
6 1/4-
6 7/8
19 3/4"-
21 3/4"
50-
55cm
Shuffle Youth
One Size
6 1/2-
7 1/8
20 1/2"-
22 1/2"
52-
57cm
Small Fry Child
One Size
< 6-
6 7/8
18 1/2"-
21 3/4"
47-
55cm
Small Fry Toddler
One Size
< 6-
6 1/2
17 1/2"-
20 1/2"
44-
52cm
Tactic
Small
6 3/8-
7
20"-
22"
51-
56cm
Medium
6 7/8-
7 3/8
21 3/4"-
23 1/4"
55-
59cm
Large
7 3/8-
7 7/8
23 1/4"-
24 3/4"
59-
63cm
  • Easy-adjust Headset SL II fit system with six height positions and micro-adjustable dial.
  • 4th Dimension Cooling System optimizes ventilation.
  • Composite matrix internal reinforcement allows larger vents for greater cooling.
  • Tri-Fix web splitter for improved comfort and ease of strap adjustments.
  • Reflective decals for increased visibility in low-light conditions.
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Echelon II

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