More information1-1 / 8 "" - 1.5 "" full carbon OCLV tapered head tube; 51mm offset; Compatible with Post Mount brakes and discs up to 210mm; Axle to crown length 490mm, fits tires up to 26 x 5 "" or 27.5 x 4.7 ""; Includes 150 x 15mm thru-axle and carbon steerer compression cap; Replaceable Carbon Armor dropout protectors;