This bike gives you the flexibility to ride the way you want, without wondering if you’ll stay with the front group. If fast gravel is what you're after the Áspero is for you. Fit Range 5'6" - 5'10" A. Effective Top Tube 553 mm B. Seat Tube 540 mm C. Seat Tube Angle 73.5° D. Head Tube Angle 72° E. Head Tube 133 mm F. Stack 555 mm G. Reach 388 mm H. Standover Height 770 mm.