Steerer tube
28.6 mm (1.13 inch) 1-1/8" to 1.5" (Taper)AL-7075
Drop out/Crown material
Forging, AL-6061
Outer Tube
42 mm / AL- 6061
Inner Tube
35 mm / AL-7075 Dark Hard Anodized
Down tube
15 mm Axle x 150 mm / 20 mm Axle x 150 mm Thru-axle Design AL-7075