Rent this Ventum GS1 gravel bike for the perfect ride for mixed surface riding around Park City, UT. Size Medium (approximately 54). It is set up with electronic shifting with a SRAM Red​/​XX 1x Mullet drivetrain. 47mm Specialized Pathfinder Pro tires make easy work of gravel, pavement and even light single track. Bike weighs approximately 18 lbs.