The '67 BSA Wasp is very rare with less than 20 produced, all by special order off of the normal factory production line. It is the 500cc brother to the well known 650 Hornets. As with the Hornet, the Wasp is strictly a competition/off-road machine with 10.5:1 high compression pistons along with its special high performance dual carbs., cylinder head and other competition parts. You can own a Wasp t-shirt with the '67 Wasp fuel tank design on the back. The shirts are 6.1 oz. (heavy) 100% preshrunk cotton. Far heavier than other shirts being sold. 6.0 to 6.4 oz. are the heaviest t-shirts available. Sizes available are: Medium (M) Large (L) Extra Large (XL) 2Extra Large (2XL) Postage: USPS First Class. $4.00 Postage (except international). My cost to ship via USPS is now $5.00. My very rare Wasp shown is not included with the shirt. Thanks for looking.