Wikipedia
A Goldsprint is a bicycle rollers racing and social event. Riders on stationary bikes compete against each other in front of spectators.
While roller racing has a history going back to the beginning of cycling, Goldsprints are fairly new and closely related to bicycle messenger culture. It began in Zurich, Switzerland as part of the 1999 Cycle Messenger World Championships. At which point the name and the event were founded by Adrien Weber, a passionate cyclist and owner of the TurbinenBräu brewery in Zurich, Turbinenbräu. The event was named after their beer brand "Gold-Sprint".
As opposed to traditional roller racing, where riders have to balance, Goldsprints use forkstands so that the riders don't have to balance, only pedal as fast as they can. This provides an easy way for anyone to try Goldsprints. However some Goldsprints groups are now adding traditional rollers, without forkstands, to their equipment to challenge the advanced riders. As with roller racing in general, the rollers are in turn attached to a device that measures distance and can display the progress of the riders. Goldsprints can also feature modern 2D and 3D visualizations.