A quick definition: A fixed-gear bicycle (or fixie), like the very first safety bicycles introduced in 1885 by John Kemp Starley in Coventry, England, is the simplest and, some (like me) would ...

Pre-installed on the Hub One, the 14 tooth single sprocket is set within a plastic body which replaces the usual cassette. To attach your bike to the single sprocket select a mid-range gear on the ...

Pedal forward or backwards and the bike goes forward. This project started off as any old cruiser with a free-wheeling rear hub. To pull off this mod a second free-wheel and sprocket had to be ...

For this wheel, the distance traveled by the bike for a single crank revolution is: The picture shows the rear sprocket mechanism (without the chain). The derailleur mechanism is to the right of the ...

If you want to go 'Full Zwift' with your multi-gear home trainer, it has never been easier with the Zwift Cog and Click.