Thor MX Forehead Vent SVS Helmet Accessories June 9, 2010 Legacy TeamHelmet Accessories, Thor MX Price: $1.25 and Includes Free Ground Freight Thor MX Forehead Vent SVS Helmet Accessories Replacement Forehead Vent for Thor MX SVS Helmets Price: $1.25 and Includes Free Ground Freight 2210-00-03 – Thor MX – Forehead Vent – $1.25