SwitchGrade - Raw Origins
WHICH VERSION DO YOU NEED? Go to the Compatibility Guide to find out.
"This device could be a game-changer for many bikes and riders of all types."
"One seat position isn't actually the optimum position most of the time… sometimes on the super steep climbs you've got to get your weight right over the front and at the same time keep some pressure on the saddle so I think this is a really cool idea."