Jetstream TT Helmet
Size:
Quantity
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.
Details
- 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
- no
- Ventilation
- 5 vents
- Fit Adjustment
- Vapor Fit
- Visor
- 2 shield lenses included (ChromaPop and clear)
- Certifications
- Complies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older, EN1078
- Claimed Weight
- [size large] 410g
- Activity
- time trial, triathlon, road cycling
- Manufacturer Warranty
- [sunglasses, goggles] limited lifetime, [helmets] limited 3 years, [apparel, accessories] limited 1 year
Reviews
Q&A
Overall Rating
5 based on 1 ratings
Review Summary
Fits True To Size
Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.View
Selecting an option will reload the available reviews on the pageMarch 4, 2026
Great Helmet for Triathlon
- Familiarity:
- I've used it several times
Super comfortable helmet for long periods of times. The detachable lense is really nice as well. It allows you to make a game time decision on which tint to use. Likewise, if you do not use a visor sunglasses still fit great on your face.
Originally reviewed on Backcountry.com
Need Expert Advice?
Our Gearheads Can Help