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Daves Cycle

Sizing Chart for Zeus,Gmax Helmets

Due to variations in head shapes; this fitment chart is for use as a guide only.
Using a cloth measuring tape, measure horizontally around the head just above the eyebrows (where a baseball cap would rest) making sure that the tape fits snugly but not to tight. It is important that the tape is as horizontal as possible, and rests with the bottom edge of the tape just touching the top of the eyebrows. Match the resulting measurement with the size on the chart.
 
 
                              Zeus helmets
 
 
                         XS              SM           MD            LG            XL          2XL          3XL
Size Code        1                 2              3               4              5             6                 7 
Size (cm)      53-54       55-56     57-58     59-60     61-62      63-64     65-66      
Size (") Min.    21         21 3/4     22 1/2    23 1/4    23 3/4     24 1/2   25 1/4   
           Max. 21 1/2      22 1/4       23       23 1/2    24 1/4      25        25 3/4
 
 
                                Gmax Helmets 
 
 
 50 cm      19 11/16"           Youth S/M                6-1/4"
 51 cm      20 1/16"             Youth S/M                 6-3/8"
 52 cm      20 7/16"             Youth L/XL                6-1/2"
 53 cm      20 7/8"               Youth L/XL                6-5/8"
 54 cm      21 1/4"                XS                               6-3/4"
 55 cm      21 5/8"                XS                               6-7/8"
 56 cm      22"                         S                                 7"
 57 cm      22 7/16"              S                                 7-1/8"
 58 cm      22 13/16"            M                                7-1/4"
 59 cm      23 1/4"                 M                                7-3/8"     
 61 cm     24"                          L                                 7-5/8"
 62 cm     24-3/8"                 XL                               7-3/4"
 63 cm     24-13/16"            XL                               7-7/8"
 64 cm     25-3/16"              XXL                             8"
 65 cm     25-5/8"                XXL                             8-1/8"
 66 cm     26" *                     XXXL                           8 1/4"
 67 cm     26 3/8" *             XXXL                           8 3/8"