frame size (inch), fork travel recommended, seat tube, chainstay, bottom bracket height, head angle, head tube length, wheelbase, seat angle, top tube (center to center), Tire clearance ,bottom bracket housing ,seatpost diametre, headtube type,
small 4 - 5" 16,7" 16,8" 0,6" 69,1° 4,9" 40,1" 73,7° 21,6" 2,3 68 31,6 1 1/8"

싯 튜브 16.7inches, 탑 튜브(센터 2 센터) 21.6 inches군요.