In 1972 Don Castro shook up the establishment by racing this factory-backed Triumph with streamlined bodywork. In the early 1970s this styling was all the rage. Craig Vetter designed a BSA prototype that the styling on Castro’s machine was strikingly similar to. Triumph revived Vetter’s concept a few years later with the release of the limited-edition Triumph X75 Hurricane. I don’t believe Castro’s Triumph ever made a Grand National. He was slated to race the bike at San Jose, but the AMA banned the bodywork for “slipstreaming”.
Don Castro’s 1972 Triumph flat track bike, which featured streamlined bodywork. The AMA banned the motorcycle for breaking the slipstreaming rule. The bike was restored and owned today by Don Miller of Metro Racing. (Larry Lawrence photo)
Rider Files 
That bike is beautiful!
LikeLike
It looks a little odd to me. I think it’s one of those things where the bike is very indicative of the early 1970s styling. To my eye it’s interesting, but the design hasn’t aged well.
To each his own when it comes to motorcycling style. I thought the Katana was a cool-looking bike back in the day. I look at it now and have a bit of a laugh.
LikeLike