Helmet and Race-Suit Size Guide

Helmet

Wrap a soft tape measure round the head, about 2.5 cm (1 inch) above the eyebrows, and round the back at the point that gives the biggest measurement.
Measure two or three times and keep the biggest number. Wear the thin balaclava or head sock the driver will race in.
Type the number below. Between two sizes, take the smaller one, as Bell advises: the padding settles a little with use.

These sizes are for Bell helmets and may not match other brands.

Bell's size chart with a box for your measurement. One A4 page, to print or save.

For a race suit and gloves, have these ready:

Show the 13 measurements (all in cm)

Neck — all the way round the base of the neck.
Shoulders — straight across the back, from one shoulder bone to the other.
Chest — round the fullest part of the chest, just under the armpits.
Waist — round the waist, level with the belly button.
Hips — round the fullest part of the hips, about 22–23 cm below the waist.
Sleeve — from the shoulder bone down to the wrist bone.
Thigh — round the fullest part of the thigh, about 10 cm below the crotch.
Back length — from the bony bump at the base of the neck (at the back) down to the waist.
Leg length — from the waist down to the ankle bone. Also measure round the knee, the calf and the ankle.
Front length — from the notch at the base of the neck (at the front) down to the waist.
Total crotch length — from the notch at the front of the neck, between the legs, up to the bony bump at the back of the neck. The tape makes one full loop.
Inside leg — from the crotch down to the ankle.
Biceps — round the fullest part of the upper arm.

A form with a box for every measurement. One A4 page, to print or save.