This fitness video – part of Troy Jacobson’s SPINeRVALS Aero Base Builder series – is a solid, hour-long workout for anyone that wants to be a better endurance athlete. Join Troy and 100 cyclists as he takes you through this fun, low intensity aerobic re-establishment program. Delivered straight to your PC, TV or iPod this routine builds strength and speed - perfect for recovery days and your pre/ post-season program.