4742 Chill Speeder is a Alpha Team set released in 2004. It comes with the Chill Speeder which is piloted by Flex.
The set is able to transform into a robot.
This is a description taken from LEGO.com. Do not modify it.
Jump on the Chill Speeder and go with Agent Flex on his search for ice orbs in the mountains. Activate Alpha Mode and the Speeder converts into an extreme, all-terrain walker - the ultimate go-anywhere vehicle!