Giant Talon 27l5 Wheel Alloy Disc Brake Mountain Bike Frame Medium. In good condition, no damage, just some very cosmetic marks and scratches. 30.9mm seat tube. 17 seat tube, measure bb center to top of tye seat tube. 11.5cm head tube. 22.5 top tube measered center head tube to center seat tube. Double waterbottle cage mount.