Helmets to protect your kids. Do you let your kids ride ATV or motorcycles without a helmet? You shouldn't. Here's a great deal on nearly new helmets that will fit kids or adults with small heads. Barely used modular helmets still with the paperwork. $60 each or $100 for both. The red one will fit a head 7 3/8 in. To 7 1/2 in. The pink one is 7 1/8 to 7 1/4 inch. Please invest in your kids' safety. Brand new these were about $170 each.