Guide:
#10201 · 11-1/2": Simpson Voyager, Side Pro Elite
#10204 · 11-1/2": Simpson RX, Super Bandit, Raider, Diamond Black
#10205 · 12-3/8": Bell 276, 281, 288 shields GTX/Vortex/BR-1/M4/K-1/Sport G-force
#10206 · 11-1/2": Bell SE03/SE05 shields, Dominator 3, GTX3, GP3
#10208 · 12-1/8": Bell 287 shield, Dominator 2, GTX2, GP2, M8
#10209 · 12-3/4": Simpson Sharks, VUDO, Invader, Valor, StingRay, K10, DevilRay, Voyager Evol., Impact Air Draft, SuperSport, Spider, Wizard, EuroSport
#10210 · 13": Simpson Venator
#10211 · 12-1/4": Bell Vador, RaceQuip Vesta 15
#10218 · 12-3/4": Arai GP6, SK6
#10230 · 11-7/8": Impact Vapor, AirVapor, Charger, SuperCharger, Draft
#10231 · 11-1/2": Impact Champ, Nitro, Super Cyclone, Bell SE07 Shield, RS7, HP7
#10252 · 12": Stilo ST5 with Large Tabs