Elliptical Bicycle Crankset

By using an oblong rather than circular shape you can effectively make the chainring.

Elliptical bicycle crankset.

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

Elliptical chainrings have been around since the beginning of the bicycle. This unique piece of gear is gaining popularity among road cyclists mountain bikers bicycle tourists and commutes. 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.