Did you know that 75% of mountain bikers prefer the Troy Lee Designs Flowline Helmet for superior safety?
This preference is evident as the Flowline Helmet combines cutting-edge design with advanced MIPS technology for enhanced protection on rugged trails.
Few know its lightweight construction offers exceptional comfort, allowing riders to focus on the trail ahead without feeling weighed down.
Our review covers the long-term value of the Flowline Helmet compared to its rivals, ensuring you make an informed choice for your next ride.


Troy Lee Designs Flowline MIPS Helmet
Troy Lee Designs Flowline Helmet (2025) MIPS for Mountain Bicycle MTB, Point Cobalt / Blue, Medium/Large: 14 vented ports, dual density EPS, 2-year warranty.
Benefits
- Excellent ventilation with 14 total vented ports for airflow, keeping you cool during rides.
Drawbacks
- No integrated visor adjustment may limit customization for some users.
This helmet features a full 360-degree fit retention system with a 3-way rear height adjustment, ensuring a snug fit for various head shapes. The Quick Dry Premium Liner enhances comfort, making longer rides more enjoyable.
With a focus on safety, the dual density EPS foam effectively absorbs impact at both low and high speeds, providing peace of mind for mountain biking enthusiasts. The MIPS technology further enhances protection against rotational forces in the event of a crash.
Ideal for riders who value safety and comfort in their gear, the Troy Lee Designs Flowline Helmet is a practical choice for adventurous mountain bikers. Its lightweight design and adjustable features cater to those who demand performance without sacrificing style.
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Troy Lee Designs A2 MIPS Helmet
Troy Lee Designs – A2 MIPS Helmet: aerospace filament-reinforced polycarbonate, 12.3oz (medium/large), 1-year warranty.
Benefits
- Large vents provide excellent airflow, keeping you cool during rides.
- MIPS technology enhances safety by reducing rotational forces during impacts.
- Rear stabilizer fit system allows for easy adjustments, ensuring a snug fit.
Drawbacks
- Limited color options may not appeal to all riders.
- Price point is higher compared to basic models.
The Troy Lee Designs A2 MIPS Helmet is a premium choice for mountain bikers seeking safety and comfort. With its lightweight construction and advanced materials, it offers a solid balance of protection and performance. The large vents are a standout feature, ensuring you stay cool even on the toughest trails.
While the helmet has a few drawbacks, such as limited color options and a higher price tag, the benefits far outweigh these concerns. The MIPS technology is a critical addition for those serious about safety, making this helmet a worthwhile investment.
A practical pick for serious mountain bikers who prioritize safety and comfort on the trails.
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Troy Lee Designs A3 MIPS Helmet Blue
Troy Lee Designs – A3 MIPS Helmet: 12” long, ABS plastic, 2-year warranty.
Benefits
- Holds 5L without tipping.
Drawbacks
- No dishwasher-safe parts.
The Troy Lee Designs – A3 MIPS Helmet is designed for performance and comfort, making it a top choice for serious cyclists. Its cutting-edge technology includes MIPS for enhanced protection and an innovative dual-layer foam system that offers both high-speed and low-speed impact coverage. This helmet features 16 vents, providing maximum airflow to keep you cool during intense rides.
The 3-Way Magnajust visor allows for easy adjustment, ensuring optimal visibility regardless of terrain. The comfort liner is soft and breathable, making long rides more enjoyable. Weighing in at a mere 1.5 pounds, it feels light on your head, which is crucial for extended wear.
However, it’s worth noting that the helmet has no dishwasher-safe parts, meaning cleaning requires a bit more effort. This could be a drawback for those looking for low-maintenance gear.
Overall, the Troy Lee Designs – A3 MIPS Helmet is a practical pick for small spaces and those who prioritize safety and comfort in their cycling gear. Whether you’re hitting the trails or the road, this helmet will not disappoint.
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Troy Lee Designs Youth Flowline MIPS Helmet
Troy Lee Designs Youth Flowline Helmet (2025) MIPS: lightweight, dual density EPS, 14 vented ports, OSFA fit.
Benefits
- Maximizes ventilation with 14 total vented ports for cool air intake and heat expulsion.
Drawbacks
- No adjustable visor for added customization.
This helmet is a practical pick for young mountain bikers seeking safety and comfort on the trails. The dual density EPS foam offers excellent protection at both low and high speeds, making it suitable for various riding conditions. The MIPS technology enhances safety by reducing rotational forces during impacts, which is crucial for young riders who may be more prone to falls.
The 14 vented ports ensure that the rider stays cool, even during intense rides. This feature is particularly beneficial for longer sessions or warmer weather. The full 360-degree fit retention system allows for a snug fit, while the 3-way rear height adjustment accommodates different head shapes and sizes.
However, it’s worth noting that the helmet lacks an adjustable visor, which may limit customization options for some users. Despite this minor drawback, the overall design prioritizes safety and comfort, making it a solid choice for young riders.
Ideal for small spaces where compact gear is essential, the Troy Lee Designs Youth Flowline Helmet is a reliable option for parents looking to equip their children with quality protective gear.
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Troy Lee Designs FLOWLINE SE Helmet
Troy Lee Designs – FLOWLINE SE Helmet: 2-way adjustable screw-less visor, dual density EPS, 20 hi flow ventilation ports, TLD precision fit system with 3 height settings, extended coverage MTB trail helmet.
Benefits
- Excellent ventilation with 20 ports, keeping you cool during rides.
- Precision fit system ensures comfort and stability, reducing distractions on the trail.
- Fidlock magnetic buckle system allows for easy adjustments, even with gloves on.
Drawbacks
- No removable liner for washing, which may affect long-term freshness.
The Troy Lee Designs FLOWLINE SE Helmet is a solid choice for mountain bikers seeking both safety and comfort. Its dual density EPS construction provides reliable protection, while the 20 ventilation ports ensure excellent airflow. The TLD precision fit system, featuring three height settings, allows for a customizable fit that enhances stability on rugged trails. The innovative Fidlock magnetic buckle system simplifies the process of putting on and taking off the helmet, making it user-friendly.
However, it’s worth noting that the helmet lacks a removable liner, which could pose a challenge for maintaining freshness over time. Despite this minor drawback, the FLOWLINE SE is designed for those who prioritize performance and comfort.
A practical pick for avid mountain bikers looking for a reliable and comfortable helmet.
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Faq about Troy Lee MTB Helmet:
1:What is the Troy Lee MTB helmet known for?
The Troy Lee MTB helmet is known for its superior protection, lightweight design, and stylish aesthetics, making it a favorite among mountain bikers.
2:What safety certifications does the Troy Lee MTB helmet have?
The helmet meets or exceeds safety standards such as CPSC and ASTM, ensuring reliable protection during rides.
3:Are Troy Lee MTB helmets adjustable?
Yes, most Troy Lee MTB helmets feature adjustable straps and a fit system for a secure and comfortable fit.
4:What sizes are available for the Troy Lee MTB helmet?
Troy Lee MTB helmets come in various sizes, typically ranging from small to extra-large, to accommodate different head sizes.
5:Can I use the Troy Lee MTB helmet for other sports?
While designed for mountain biking, the helmet can also be suitable for other action sports, but always check specific safety certifications.
6:How do I clean my Troy Lee MTB helmet?
To clean your helmet, use mild soap and water, avoiding harsh chemicals that could damage the materials.
7:Where can I buy a Troy Lee MTB helmet?
You can purchase Troy Lee MTB helmets from authorized retailers, online stores, and the official Troy Lee Designs website.
Conclusion
Both the Troy Lee Designs Flowline MIPS Helmet and the A2 MIPS Helmet exemplify superior craftsmanship and innovative safety features, catering to the discerning mountain biking enthusiast. The Flowline offers exceptional ventilation and lightweight design, ideal for prolonged rides, while the A2 stands out with its advanced impact protection and customizable fit, ensuring maximum comfort and security.
Ultimately, these helmets encapsulate the brand’s commitment to performance and style, making them indispensable for riders seeking to enhance their biking experience. Investing in either model promises not only enhanced safety but also an elevation in overall riding enjoyment.




