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Jetstream TT Helmet

5 out of 5 stars
1 Review
Color:Matte Black


Size Chart


Why We Like The Jetstream TT Helmet

The Jetstream TT helmet offers a great combination of speed and safety elements. The polycarbonate material creates a lightweight aerodynamic helmet that also has high impact resistance. Equipped with both MIPS and Koroyd layers, this helmet will reduce impact to the head during a crash.

With five air vents, optimal airflow is created so that you can stay up to speed on race day. A low profile y-strap divider is also in place to help with aerodynamics. The Jetstream also features a magnetic visor for easy removal to switch between two lenses, a basic clear lens and the color enhancing ChromaPop.


  • Helmet designed specifically for time trials
  • Built with MIPS and Koroyd layers for maximum brain protection
  • VaporFit adjustment system allows for 270-degree fit
  • Magnetic visor comes with clear and ChromaPop lenses
  • Sweat-activated odor control from ionic anti-odor lining
  • Item #SMIZ9EZ
Shell Material
polycarbonate with Koroyd liner
Audio Compatible
5 vents
Fit Adjustment
Vapor Fit
2 shield lenses included (ChromaPop and clear)
Complies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older, EN1078
Claimed Weight
[size large] 410g
time trial, triathlon, road cycling
Manufacturer Warranty

Overall Rating

5 based on 1 ratings

Review Summary

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5 Stars - 1 reviews

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5 out of 5 stars

June 21, 2022

Awesome TT helmet

I bought this helmet to replace my old TT helmet. The Smith helmet is super light and the retention system is great. Other nice thing is the brim on it has a very low profile so you don't have to crane your neck back as much to see forward.


Originally reviewed on smithoptics.com