Trainer 29" Unicycle Saddle: Unicycle.com (black) with lift handle Seat Post: Club 25.4mm x 300mm chromed steel, welded rectangular mounting bracket, 4 hole Frame: Trainer round crown 29" (chrome) steel with 40mm stamped maincap bearing housings Hub/Axle: UDC cotterless (black) 48H, chromoly splindle,100 mm center bearing to center bearing Rim: Trainer 29" (chrome) 48H, singlewall, aluminum