T-Shirt sketch. Nice fluid scribble of a Beeza twin pre-unit engine. The three lobed timing side cover is very distinctive. Hand written notes list the essential engine components: piston, sparkplugs, carbs, exhaust etc. This top is one of Red Torpedo’s offerings, they make garb for motorcyclists; also used by the likes of road racers & mechanics like Guy Martin.
geordiebiker.com 