Sigma - Gallery

Alpha X technology ported to a stem

Minimal frontal profile

Integrated centerpull cable routing

Manages cable with bolt-on cover

Integrated BTA bottle mounting

25mm stack, 100m reach

All-Carbon Construction

Born from Alpha X, Includes aero-matched spacers

Single-bolt Wedge Clamp

Smooth shapes for less drag

Complete Superstem tech

Hassle-free Cable Routing