Thor MX Mouthpiece SVS Helmet Accessories June 9, 2010 Legacy TeamHelmet Accessories, Thor MX Price: $2.75 and Includes Free Ground Freight Thor MX Mouthpiece SVS Helmet Accessories Replacement Mouthpiece for Thor MX SVS Helmets Price: $2.75 and Includes Free Ground Freight 2210-00-05 – Thor MX – Mouthpiece – Chrome – $2.75