Helmet sizing
#1
Thread Starter
Senior Member (Retired)

Joined: Sep 2001
Posts: 2,671
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From: Great North Woods
Bikes: Vittorio, Centaur triple; Casati Laser Piu, Chorus Triple.
Helmet sizing
OK, this sounds pretty simple to me: how are cycling helmets measured?
Given the sizes I see in ads, and taking a quick pass around my head with a tape measure, I am guessing that is what the sizes mean (for MET a large is 59-61 cm, for example).
Does anyone know for sure? If this is the method, where is the measurement taken?
Thanks...Gary
Given the sizes I see in ads, and taking a quick pass around my head with a tape measure, I am guessing that is what the sizes mean (for MET a large is 59-61 cm, for example).
Does anyone know for sure? If this is the method, where is the measurement taken?
Thanks...Gary
#2
feros ferio

Joined: Jul 2000
Posts: 22,398
Likes: 1,865
From: www.ci.encinitas.ca.us
Bikes: 1959 Capo Modell Campagnolo; 1960 Capo Sieger (2); 1962 Carlton Franco Suisse; 1970 Peugeot UO-8; 1982 Bianchi Campione d'Italia; 1988 Schwinn Project KOM-10;
Just to add to the confusion, Gary, traditional American hat sizes use head diameter, rather than circumference.
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"Far and away the best prize that life offers is the chance to work hard at work worth doing." --Theodore Roosevelt
Capo: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger (2), S/N 42624, 42597
Carlton: 1962 Franco Suisse, S/N K7911
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1982 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069
"Far and away the best prize that life offers is the chance to work hard at work worth doing." --Theodore Roosevelt
Capo: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger (2), S/N 42624, 42597
Carlton: 1962 Franco Suisse, S/N K7911
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1982 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069
#3
Life is good


Joined: Jan 2001
Posts: 18,208
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From: Not far from the Withlacoochee Trail. 🚴🏻
Bikes: 2018 Lynskey Helix Pro
Performance and Nashbar generally have sizing information on their websites. And they use circumference.
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The Lord is merciful and gracious, slow to anger and abounding in steadfast love. - Psalm 103:8
I am a cyclist. I am not the fastest or the fittest. But I will get to where I'm going with a smile on my face.
The Lord is merciful and gracious, slow to anger and abounding in steadfast love. - Psalm 103:8
I am a cyclist. I am not the fastest or the fittest. But I will get to where I'm going with a smile on my face.





