Inside Yamaha’s MotoGP Race Shop

The M1’s engine block begins as a 90kg (198 lbs) chunk of aluminum that, says Yamaha, costs about the same as a VW Golf. Some 40 hours of machining later, it is whittled down to just 4.5kg (9.9 lbs)! The crankshaft inside undergoes seven different heat treatments over a 12-to-15-week period to ensure robust strength.