Run over the every-day roads of the Isle of Man for the past 100 years, the world-famous Tourist Trophy races have gripped the imaginations of successive generations of motorcyclists. From the earliest days of single-speed, belt-driven machines delivering 5 bhp, to the highly developed projectiles of today offering a fearsome 200 bhp, race fans have thronged the roadside banks and watched in awe as the best racing motorcyclists in the world rode the fastest machines of their day around the twists, turns and climbs of the 374 mile Mountain Course, all in pursuit of a coveted Tourist Trophy. This book reveals the event's colorful history through the high-speed activities of great riders such as the Collier brothers, Geoff Duke, Mike Hailwood, Giacomo Agostini, Steve Hislop, Joey Dunlop, John McGuinness and many others. It also looks at the machines and mechanical developments and race organization, plus the financial rewards and commercial interests; setting them all in the context of the triumphs and tragedies of a great sporting event that has seen average lap speeds rise from 40 mph to almost 130 mph.