Planet X is a bicycle company based in Rotherham

Rotherham

Rotherham is a town in South Yorkshire, England. It lies on the River Don, at its confluence with the River Rother, between Sheffield and Doncaster. Rotherham, at from Sheffield City Centre, is surrounded by several smaller settlements, which together form the wider Metropolitan Borough of...

, in the north of England. It was founded by Dave Loughran from Sheffield

Sheffield

Sheffield is a city and metropolitan borough of South Yorkshire, England. Its name derives from the River Sheaf, which runs through the city. Historically a part of the West Riding of Yorkshire, and with some of its southern suburbs annexed from Derbyshire, the city has grown from its largely...

. Planet X produces road and time-trial bikes using alloy and composites. It was founded in the 1990s to produce dirt, jump and trials bikes. It then diversified into a wider range.

In 2003, Planet-X sponsored the Trialskings team who used Planet-X Pitbull and Jack Flash frames. These were present in Trialskings team videos, ridden by Danny Holroyd and other members.