Elliptical Bicycle Crankset

A growing trend in cycling is the oval chainring also known as an elliptical chainring.

Elliptical bicycle crankset.

Elliptical chainrings have been around since the beginning of the bicycle. That shimano manufactured an elliptical chainring in the 1980s called the biopace and aside from a few love letters the component was generally panned for causing undue stress on the knees. Donsp1986 single speed crankset set 46t 170mm crankarms 130 bcd crankset for mountain road bike fixed gear bicycle square taper black 46t sprocket 17 ref tags container link. Biopace biopace is a patented non round chainwheel design made and licensed by shimano.

Ever since the chain driven bicycle was invented elliptical chainwheels have been re invented and re abandoned for the same reason every ten or fifteen years. By using an oblong rather than circular shape you can effectively make the chainring. The premise is simple.