Duprat

Andre DUPRAT

France

Among their offerings, produced the possibly the lightest steel cottered cranks.

8.2.2014

Mike Barry of Bicycle Specialties comments:

“The best of all, in my opinion, were the French Duprat which had hollow steel arms. Their weight was very little more than alloy ones and they were quite elegant.”

In the Speedplay Vintage Bike Components Museum
Flickr site: HERE and HERE

Duprat hollow steel cottered cottered crank

Courtesy Bryant Bambridge

Patent sheets from 1934 detailing the hollow crank arms

Courtesy Christoph Guder

“Maniplum” Dural (aluminum alloy) cottered crank

Courtesy Bryant Bambridge

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