6D HELMETS

6D ATS-1R Helmet Size Chart by Head Circumference Measurements: XSM (extra small) fits 53 cm to 54 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 59 cm to 60 cm; XLG (extra large) fits 61 cm to 62 cm; 2XL (double extra large) fits 62 cm to 63 cm

ATS-1R

6D ATS-1 Helmet Size Chart by Head Circumference Measurements: XSM (extra small) fits 53 cm to 54 cm; SML (small) fits 55 cm to 56 cm; MSM (medium small) fits 56 cm to 57 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 59 cm to 60 cm; XLG (extra large) fits 61 cm to 62 cm; 2XL (double extra large) fits 62 cm to 63 cm

ATS-1

6D ATR-2 Helmet Size Chart by Head Circumference Measurements: XSM (extra small) fits 53 cm to 54 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 58 cm to 59 cm; XLG (extra large) fits 60 cm to 61 cm; 2XL (double extra large) fits 62 cm to 63 cm

ATR-2

6D Youth ATR-2Y Helmet Size Chart by Head Circumference Measurements: YSM (youth small) fits 49 cm to 50 cm; YMD (youth medium) fits 50 cm to 51 cm; YLG (youth large) fits 51 cm to 52 cm; YXL (youth extra large) fits 52 cm to 53 cm

ATR-2Y

6D ATR-1 Helmet Size Chart by Head Circumference Measurements: XSM (extra small) fits 53 cm to 54 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 58 cm to 59 cm; XLG (extra large) fits 60 cm to 61 cm; 2XL (double extra large) fits 62 cm to 63 cm

ATR-1

AGV

AGV Tour Modular Helmet Size Chart by Head Circumference Measurements: XSM (extra small) fits 53 cm to 54 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits to 59 cm to 60 cm; XLG (extra large) fits 61 cm to 62 cm; 2XL (double extra large) fits 63 cm to 64 cm

Tourmodular

AGV AX-8 Evo and AX9 Helmet Size Chart by Head Circumference Measurements: 2XS (double extra small) fits 51 cm to 52 cm; XSM (extra small) fits 53 cm to 54 cm; SML (small) fits 55 cm to 56 cm; MSM (medium small) fits 57 cm to 58 cm; MLG (medium large) fits 58 cm to 59 cm; LRG (large) fits to 59 cm to 60 cm; XLG (extra large) fits 61 cm to 62 cm; 2XL (double extra large) fits 63 cm to 64 cm; 3XL (triple extra large) fits 65 cm to 66 cm

AX-8 Evo & AX9

AGV Corsa, Pista GP R, Pista GP RR, K6, and Veloce S Helmet Size Chart by Head Circumference Measurements: SML (small) fits 55 cm to 56 cm; MSM (medium small) fits 57 cm to 58 cm; MLG (medium large) fits 59 cm to 60 cm; LRG (large) fits to 60 cm to 61 cm; XLG (extra large) fits 61 cm to 62 cm; 2XL (double extra large) fits 63 cm to 64 cm

Corsa, Pista GP R(R), K6, & Veloce S

AGV Pista GP RR and K6 S Helmet Size Chart by Head Circumference Measurements: XSM (extra small) fits 53 cm to 54 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits to 59 cm to 60 cm; XLG (extra large) fits 61 cm to 62 cm; 2XL (double extra large) fits 63 cm to 64 cm

Pista GP RR & K6 S

AGV K1, K3 SV, and K5 S Helmet Size Chart by Head Circumference Measurements: XSM (extra small) fits 53 cm to 54 cm; SML (small) fits 55 cm to 56 cm; MSM (medium small) fits 57 cm; MLG (medium large) fits 58 cm; LRG (large) fits to 59 cm to 60 cm; XLG (extra large) fits 61 cm to 62 cm; 2XL (double extra large) fits 63 cm to 64 cm

K1, K3 SV, & K5 S

AGV Sport Modular Helmet Size Chart by Head Circumference Measurements: SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits to 58 cm to 59 cm; XLG (extra large) fits 60 cm to 61 cm; 2XL (double extra large) fits 61 cm to 62 cm

Sport Modular

ALPINESTARS

Alpinestars Off-Road Helmet Size Chart by Head Circumference Measurements: XSM (extra small) fits 53 cm to 54 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 59 cm to 60 cm; XLG (extra large) fits 61 cm to 62 cm; 2XL (double extra large) fits 63 cm to 64 cm

ARAI

Arai Contour-X Size Chart for Head Shape of Intermediate Oval: XSM (extra small) fits 53 cm to 54 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 59 cm to 60 cm; XLG (extra large) fits 61 cm to 62 cm; 2XL (double extra large) fits 63 cm to 64 cm; 3XL (triple extra large) fits 65 cm to 66 cm

Contour-X

Arai Corsair-X Size Chart for Head Shape of Intermediate Oval: XSM (extra small) fits 53 cm to 54 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 59 cm to 60 cm; XLG (extra large) fits 61 cm to 62 cm; 2XL (double extra large) fits 63 cm to 64 cm; 3XL (triple extra large) fits 65 cm to 66 cm

Corsair-X

Arai XD-4 Size Chart for Head Shape Intermediate Oval: XSM (extra small) fits 53 cm to 54 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 59 cm to 60 cm; XLG (extra large) fits 61 cm to 62 cm; 2XL (double extra large) fits 63 cm to 64 cm; 3XL (triple extra large) fits 65 cm to 66 cm

XD-4

Arai Regent-X Size Chart for Head Shape of Intermediate Oval: XSM (extra small) fits 53 cm to 54 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 59 cm to 60 cm; XLG (extra large) fits 61 cm to 62 cm; 2XL (double extra large) fits 63 cm to 64 cm; 3XL (triple extra large) fits 65 cm to 66 cm

Regent-X

Arai Quantum-X Size Chart for Head Shape of Round Oval: XSM (extra small) fits 53 cm to 54 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 59 cm to 60 cm; XLG (extra large) fits 61 cm to 62 cm; 2XL (double extra large) fits 63 cm to 64 cm; 3XL (triple extra large) fits 65 cm to 66 cm

Quantum-X

Arai Signet-X Size Chart for Head Shape of Long Oval: XSM (extra small) fits 53 cm to 54 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 59 cm to 60 cm; XLG (extra large) fits 61 cm to 62 cm; 2XL (double extra large) fits 63 cm to 64 cm; 3XL (triple extra large) fits 65 cm to 66 cm

Signet-X

Arai VX-Pro4 Size Chart for Head Shape of Intermediate Oval: XSM (extra small) fits 53 cm to 54 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 59 cm to 60 cm; XLG (extra large) fits 61 cm to 62 cm; 2XL (double extra large) fits 63 cm to 64 cm; 3XL (triple extra large) fits 65 cm to 66 cm

VX-Pro4

Arai Classic-V Size Chart for Head Shape of Intermediate Oval: XSM (extra small) fits 53 cm to 54 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 59 cm to 60 cm; XLG (extra large) fits 61 cm to 62 cm; 2XL (double extra large) fits 63 cm to 64 cm; 3XL (triple extra large) fits 65 cm to 66 cm

Classic-V

Arai Ram-X Size Chart for Head Shape of Intermediate Oval: XSM (extra small) fits 53 cm to 54 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 59 cm to 60 cm; XLG (extra large) fits 61 cm to 62 cm; 2XL (double extra large) fits 63 cm to 64 cm; 3XL (triple extra large) fits 65 cm to 66 cm

Ram-X

BELL

Bell Star DLX MIPS Helmet Size Chart by Head Circumference Measurements: XSM (extra small) fits 53 cm to 54 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 59 cm to 60 cm; XLG (extra large) fits 61 cm to 62 cm; 2XL (double extra large) fits 63 cm to 64 cm

Star

Bell Pit Boss Helmet Size Chart by Head Circumference Measurements: XSM/SML (extra small to small) fits 53 cm to 56 cm; MED (medium) fits 56 cm to 58 cm; LRG (large) fits 58 cm to 60 cm; XLG/2XL (extra large to double extra large) fits 62 cm to 63 cm; 3XL (triple extra large) fits 63 cm to 64 cm

Pit Boss

Bell Riot Helmet Size Chart by Head Circumference Measurements: XSM (extra small) fits 53 cm to 54 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 59 cm to 60 cm; XLG (extra large) fits 61 cm to 62 cm; 2XL (double extra large) fits 63 cm to 64 cm

Riot

Bell Scout Air Helmet Size Chart by Head Circumference Measurements: XSM (extra small) fits 53 cm to 54 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 59 cm to 60 cm; XLG (extra large) fits 61 cm to 62 cm; 2XL (double extra large) fits 63 cm to 64 cm

Scout Air

Bell MOTO-9 Flex and MOTO-9 MIPS Helmet Size Chart by Head Circumference Measurements: XSM (extra small) fits 54 cm to 55 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 58 cm to 59 cm; XLG (extra large) fits 60 cm to 61 cm; 2XL (double extra large) fits 62 cm to 63 cm

MOTO-9

Bell MOTO-9 Youth Helmet Size Chart by Head Circumference Measurements: YSM/YMD (youth small to youth medium) fits 49 cm to 51 cm; YLG/YXL (youth large to youth extra large) fits 51 cm to 53 cm

MOTO-9 Youth

Bell MX-9 MIPS and MX-9 Adventure MIPS Helmet Size Chart by Head Circumference Measurements: XSM (extra small) fits 53 cm to 54 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 59 cm to 60 cm; XLG (extra large) fits 61 cm to 62 cm; 2XL (double extra large) fits 63 cm to 64 cm; 3XL (triple extra large) fits 65 cm to 66 cm

MX-9

Bell Custom 500 Helmet Size Chart by Head Circumference Measurements: XSM (extra small) fits 53 cm to 54 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 59 cm to 60 cm; XLG (extra large) fits 61 cm to 62 cm; 2XL (double extra large) fits 63 cm to 64 cm

Custom 500

Bell Race Star Helmet Size Chart by Head Circumference Measurements: XSM (extra small) fits 53 cm to 54 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 59 cm to 60 cm; XLG (extra large) fits 61 cm to 62 cm; 2XL (double extra large) fits 63 cm to 64 cm

Race Star

Bell Rogue Helmet Size Chart by Head Circumference Measurements: XSM (extra small) fits 54 cm to 55 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 58 cm to 59 cm; XLG (extra large) fits 60 cm to 61 cm; 2XL (double extra large) fits 62 cm to 63 cm

Rogue

Bell MAG-9 Helmet Size Chart by Head Circumference Measurements: XSM (extra small) fits 54 cm to 55 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 58 cm to 59 cm; XLG (extra large) fits 60 cm to 61 cm; 2XL (double extra large) fits 62 cm to 63 cm

MAG-9

Bell Bullitt Helmet Size Chart by Head Circumference Measurements: XSM (extra small) fits 54 cm to 55 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 58 cm to 59 cm; XLG (extra large) fits 60 cm to 61 cm; 2XL (double extra large) fits 62 cm to 63 cm

Bullitt

Bell Broozer Helmet Size Chart by Head Circumference Measurements: XSM (extra small) fits 54 cm to 55 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 58 cm to 59 cm; XLG (extra large) fits 60 cm to 61 cm; 2XL (double extra large) fits 62 cm to 63 cm

Broozer

Bell Revolver Helmet Size Chart by Head Circumference Measurements: XSM (extra small) fits 54 cm to 55 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 58 cm to 59 cm; XLG (extra large) fits 60 cm to 61 cm; 2XL (double extra large) fits 62 cm to 63 cm

Revolver

Bell Recon Helmet Size Chart by Head Circumference Measurements: XSM (extra small) fits 53 cm to 54 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 59 cm to 60 cm; XLG (extra large) fits 61 cm to 62 cm; 2XL (double extra large) fits 63 cm to 64 cm; 3XL (triple extra large) fits 65 cm to 66 cm

Recon

Bell SRT and SRT Modular Helmet Size Chart by Head Circumference Measurements: XSM (extra small) fits 53 cm to 54 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 59 cm to 60 cm; XLG (extra large) fits 61 cm to 62 cm; 2XL (double extra large) fits 63 cm to 64 cm; 3XL (triple extra large) fits 65 cm to 66 cm

SRT

Bell Eliminator Helmet Size Chart by Head Circumference Measurements: XSM (extra small) fits 53 cm to 54 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; MED/LRG (medium large) fits 58 cm to 59 cm; LRG (large) fits 59 cm to 60 cm; XLG (extra large) fits 61 cm to 62 cm; 2XL (double extra large) fits 63 cm to 64 cm; 3XL (triple extra large) fits 65 cm to 66 cm

Eliminator

Bell MOTO-10 Helmet Size Chart by Head Circumference Measurements: XSM (extra small) fits 54 cm to 55 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 58 cm to 59 cm; XLG (extra large) fits 60 cm to 61 cm; 2XL (double extra large) fits 61 cm to 62 cm

MOTO-10

Bell MOTO-3 Helmet Size Chart by Head Circumference Measurements: XSM (extra small) fits 53 cm to 54 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 59 cm to 60 cm; XLG (extra large) fits 61 cm to 62 cm; 2XL (double extra large) fits 63 cm to 64 cm

MOTO-3

Bell RS-2 Helmet Size Chart by Head Circumference Measurements: XSM (extra small) fits 54 cm to 55 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 58 cm to 59 cm; XLG (extra large) fits 60 cm to 61 cm; 2XL (double extra large) fits 62 cm to 63 cm

RS-2

Bell Qualifier, Qualifier DLX MIPS, and Qualifier Forced Air Helmet Size Chart by Head Circumference Measurements: XSM (extra small) fits 53 cm to 54 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 59 cm to 60 cm; XLG (extra large) fits 61 cm to 62 cm; 2XL (double extra large) fits 63 cm to 64 cm; 3XL (triple extra large) fits 65 cm to 66 cm

Qualifier

DAYTONA HELMETS

Daytona Adult Helmet Size Chart by Head Circumference Measurements: 3XS (triple extra small) fits 43.5 cm to 45.7 cm; 2XS (double extra small) fits 46 cm to 48.3 cm; XSM (extra small) fits 48.6 cm to 50.8 cm; SML (small) fits 51.5 cm to 53.3 cm; MED (medium) fits 53.7 cm to 55.9 cm; LRG (large) fits 56.2 cm to 58.4 cm; XLG (extra large) fits 58.7 cm to 61 cm; 2XL (double extra large) fits 61.3 cm to 63.5 cm; 3XL (triple extra large) fits 63.8 cm to 66 cm; 4XL (quadruple extra large) fits 66.4 cm to 68.6 cm

Adult

Daytona Youth Helmet Size Chart by Head Circumference Measurements: YSM (youth small) fits 38.4 cm to 40.6 cm; YMD (youth medium) fits 41 cm to 43.2 cm; YLG (youth large) fits 43.5 cm to 45.7 cm

Youth

FLY RACING

Fly Racing Motocross Helmet Size Chart by Head Circumference Measurements: YSM (youth small) fits 47 cm to 48 cm; YMD (youth medium) fits 49 cm to 50 cm; YLG (youth large) fits 51 cm to 52 cm; XSM (extra small) fits 53 cm to 54 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 59 cm to 60 cm; XLG (extra large) fits 61 cm to 62 cm; 2XL (double extra large) fits 63 cm to 64 cm; 3XL (triple extra large) fits 65 cm to 66 cm

Moto (Off-Road) Helmets

Fly Racing Street Helmet Size Chart by Head Circumference Measurements: YSM (youth small) fits 47 cm to 48 cm; YMD (youth medium) fits 49 cm to 50 cm; YLG (youth large) fits 51 cm to 52 cm; XSM (extra small) fits 53 cm to 54 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 59 cm to 60 cm; XLG (extra large) fits 61 cm to 62 cm; 2XL (double extra large) fits 63 cm to 64 cm; 3XL (triple extra large) fits 65 cm to 66 cm

Street Helmets

FOX

Fox Racing Helmet Size Chart by Head Circumference Measurements: YSM (youth small) fits 49 cm to 51 cm; YMD (youth medium) fits 51 cm to 52 cm; YLG (youth large) fits 52 cm to 53 cm; XSM (extra small) fits 53 cm to 54 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 59 cm to 60 cm; XLG (extra large) fits 61 cm to 62 cm; 2XL (double extra large) fits 63 cm to 64 cm

HJC

HJC Helmet Size Chart by Head Circumference Measurements: 3XS (triple extra small) fits 50 cm to 51 cm; 2XS (double extra small) fits 51 cm to 52 cm; XSM (extra small) fits 53 cm to 54 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 59 cm to 60 cm; XLG (extra large) fits 61 cm to 62 cm; 2XL (double extra large) fits 63 cm to 64 cm; 3XL (triple extra large) fits 65 cm to 66 cm

ICON

Icon Helmet Size Chart by Head Circumference Measurements: 2XS (double extra small) fits 51 cm to 52 cm; XSM (extra small) fits 53 cm to 54 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 59 cm to 60 cm; XLG (extra large) fits 61 cm to 62 cm; 2XL (double extra large) fits 63 cm to 64 cm; 3XL (triple extra large) fits 65 cm to 66 cm

LS2 HELMETS

LS2 Adult Helmet Size Chart by Head Circumference Measurements: XSM (extra small) fits 53 cm to 54 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 59 cm to 60 cm; XLG (extra large) fits 61 cm to 62 cm; 2XL (double extra large) fits 63 cm to 64 cm; 3XL (triple extra large) fits 65 cm to 66 cm; 4XL (quadruple extra large) fits 67 cm to 68 cm

Adult

LS2 Rapid Mini Size Chart by Head Circumference Measurements: YSM (youth small) fits 47 cm to 48 cm; YMD (youth medium) fits 49 cm to 50 cm; YLG (youth large) fits 51 cm to 52 cm

Rapid Mini

LS2 Gate Youth Helmet Size Chart by Head Circumference Measurements: YSM (youth small) fits 51 cm to 52 cm; YMD (youth medium) fits 53 cm to 54 cm; YLG (youth large) fits 55 cm to 56 cm

Gate Youth

SCORPION EXO

Scorpion Helmet Size Chart by Head Circumference Measurements: XSM (extra small) fits 53 cm to 54 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 59 cm to 60 cm; XLG (extra large) fits 61 cm to 62 cm; 2XL (double extra large) fits 63 cm to 64 cm; 3XL (triple extra large) fits 65 cm to 66 cm; 4XL (quadruple extra large) fits 67 cm to 68 cm
Scorpion Helmet Head Shape Reference Chart: models for Long Oval Head Shape are EXO-R2000 and EXO-GT3000; models for Intermediate Oval Head Shape are EXO-R1 AIR including carbon version, EXO-ST1400 Carbon, EXO-T520, Covert FX, Covert 2, EXO-HX1, EXO-R420, EXO-R320, EXO-GT930, EXO-AT960, EXO-AT950, XT9000, and VX-16; model for Round Head Shape is Covert

SHOEI

Shoei Helmet Sizing Chart: XSM (extra small) fits 53 cm to 54 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 59 cm to 60 cm; XLG (extra large) fits 61 cm to 62 cm; 2XL (double extra large) fits 63 cm to 64 cm; 3XL (triple extra large) fits 65 cm to 66 cm

TROY LEE DESIGNS

Troy Lee Designs SE4 Helmet Size Chart by Head Circumference Measurements: XSM (extra small) fits 54 cm to 55 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 58 cm to 59 cm; XLG (extra large) fits 60 cm to 61 cm; 2XL (double extra large) fits 62 cm to 63 cm

SE4

Troy Lee Designs SE5 Helmet Size Chart by Head Circumference Measurements: XSM (extra small) fits 53 cm to 54 cm; SML (small) fits 55 cm to 56 cm; MED (medium) fits 57 cm to 58 cm; LRG (large) fits 58 cm to 59 cm; XLG (extra large) fits 60 cm to 61 cm; 2XL (double extra large) fits 62 cm to 63 cm

SE5

Troy Lee Designs Youth Helmet Size Chart by Head Circumference Measurements: YMD (youth medium) fits 50 cm to 51 cm; YLG (youth large) fits 52 cm to 53 cm

Youth