• Aerodynamically honed stem with adjustable length and angle to optimize your position
• The rider makes up 80-90% of total aero drag, so refining position can produce some of the biggest aero gains of all.
• Included shims allow change of +/– 2.5mm in reach at -12°, or adjust the angle to -7° or -17°
Handlebar Diameter - 31.8mm