Trek Ballista Mips Biking Helmet Black Matte Jan-22 +/- 5% accurate power readings

+/- 5% accurate power readings

The Harbinger Olympic Bar Pad is designed to improve comfort when performing back squats and other exercises where the bar rests on the body

Side zip for easy access

Product Code: 1ME30520553

Trek Ballista Mips Biking Helmet Black Matte Jan-22 +/- 5% accurate power readingsWhen speed is your top priority and every watt counts, reach for the helmet that'll cut through the wind to save you seconds. Ballista is Trek's fastest, most aerodynamically advanced helmet. Highlights: Circumference S M : 51 57 cm M L : 54 60 cm Fit System: BOA Buckle Type: Standard Buckle Trek's fastest, most aerodynamic helmet will save big watts and shave crucial seconds An excellent ventilation system makes this aero helmet surprisingly cool and