The World's Fastest Indian

 The World's Fastest Indian is a 2005 New Zealand biographical film based on the Invercargill, New Zealand speed bike racer Burt Munro and his highly modified Indian Scout motorcycle. Munro set numerous land speed records for motorcycles with engines less than 1000 cc at the Bonneville Salt Flats in Utah in the late 1950s and into the 1960s. Burt Munro is a sort of folk hero in his hometown for his friendly and charming personality and for being featured in Popular Mechanics magazine (May 1957 p6) for having the fastest motorcycle in Australia and New Zealand. However, that recognition is contrasted by his exasperated neighbours, who are fed up with his un-neighbourly habits such as urinating on his lemon tree every morning, neglecting his garden, and, most of all, waking up before sunrise to rev his bike's very loud engine. (From Wikipedia)

I just put this on my N-Flix list to watch again.  There are very few movies I will watch more than once and this is one of them.
Burt Monroe designed and built every part of his engine in his garage, casting many pistons, blowing up engines and doing it all again many times until he succeeded.
Anthony Hopkins  is always good, but here he is at his best.  
Based on a true story and very well done. 
It makes you wish you had been there.

The trailer