Category
page 1Hub gears
hub gear
device for changing gear ratio on bikes
Sturmey-Archer
thumb|A Sturmey-Archer three speed hub, the most common kind of Sturmey-Archer gear
Sturmey-Archer was a manufacturing company originally from Nottingham, England. It primarily produced bicycle hub gears, brakes and a great many other sundry bicycle components, most prominently during its heyday as a subsidiary of the Raleigh Bicycle Company. Earlier, it had also manufactured motorcycle hubs, gearboxes and engines.
Rohloff
thumb|Internal Schematic of a Rohloff Speedhub 500/14
Rohloff AG is a German company from Fuldatal near Kassel that manufactures hub gears, bicycle chains and tools that are known for their durability and high performance. The company's logo is a black silhouette of a raven on a yellow background.
Rohloff Speedhub
internal hub gear for bicycles
enviolo Continuously Variable Transmission
roller-based continuously variable transmission