Oneal Sl1 Terra Downhill Helmet

Was £145.56
From £114.99
Save 21.00%
Compare prices from trusted UK retailers below
BikeINN
£114.99
View Deal
In Stock, ready to order
Price last checked: 03/10/2026

Browse all Helmets or explore ONeal offers
Find the best ONeal Helmets deals

Oneal Sl1 Terra Downhill Helmet

Oneal Sl1 Terra Downhill Helmet. Conquer descents with the O´Neal SL1 Terra Downhill Helmet. Lightweight Inmold construction meets a superior ventilation system for maximum airflow and cooling. Enjoy enhanced comfort with a plush, washable liner and a secure Fidlock® magnetic closure. Safety is paramount, featuring bre ...
Oneal Sl1 Terra Downhill Helmet. Conquer descents with the O´Neal SL1 Terra Downhill Helmet. Lightweight Inmold construction meets a superior ventilation system for maximum airflow and cooling. Enjoy enhanced comfort with a plush, washable liner and a secure Fidlock® magnetic closure. Safety is paramount, featuring break-away visor screws and full ASTM Downhill certification. Compatible with Airflaps™ for ultimate versatility. Shred with confidence and superior protection. SL1 Terra downhill helmet.Experience the pinnacle of lightweight protection and superior comfort with the O´Neal SL1 Terra Downhill Helmet. Engineered for the demanding world of downhill, enduro, and freeride mountain biking, this helmet is designed to keep you cool, confident, and focused on the trail ahead. Its advanced construction provides robust safety without the weight penalty, allowing for enhanced agility and reduced fatigue on long, challenging descents. Whether you´re charging through technical rock gardens or sending it over massive jumps, the SL1 Terra offers the perfect balance of safety, ventilation, and performance-driven design to elevate your ride.Dominate every trail with a helmet that prioritizes your comfort and protection. The SL1 Terra is built to withstand the rigors of gravity-fueled riding while ensuring you stay cool under pressure. Its innovative design focuses on maximizing airflow, pulling cool air through the front and expelling hot air out the back, creating a constant cooling effect. This makes it an ideal choice for intense race runs or warm days at the bike park. The user-friendly features and meticulous attention to detail ensure a secure, hassle-free fit, so you can spend less time adjusting your gear and more time shredding.Key Features:* Lightweight Inmold Construction: A state-of-the-art manufacturing process that creates a single, strong, and lightweight structural unit for superior impact resistance without excess bulk.* Exceptional Ventilation System: Features multiple oversized ventilation openings strategically placed and connected by deep internal air channels, guaranteeing maximum airflow and cooling efficiency during high-exertion riding.* Enhanced Rider Comfort: Equipped with a plush, sweat-absorbing inner liner that is fully removable and washable, ensuring a fresh, comfortable, and hygienic fit for every ride.* Advanced Safety Integration: The visor is mounted with break-away screws designed to detach during an impact, helping to reduce the risk of rotational injuries.* Airflaps™ Compatibility: Designed to be fully compatible with the Airflaps™ system, allowing riders to attach the device for improved breathing and goggle ventilation on grueling climbs or between race stages.Technical Specifications:* Attributes: Adult, No Technology, Synthetic* Product Name: SL1 Terra downhill helmet* Shell Construction: Inmold technology* Safety Standard: Certified to EN1078 and the rigorous ASTM Downhill standard* Locking System: O´Neal Fidlock® magnetic closure* Material and Function: Removable, washable, sweat-absorbing liner* Special Technology: Air flaps compatible* Screws: Break-Away screw design for visor* Material: PC 13.15%, EPS 37.42%, Nylon 7.59%, Aluminium 1.52%, ABS 17.57%, POM 4.17%, ABS 10.24%, EPP 1.64%, Polyester 6.7%. tradeinn Bikeinn
Read More

Other Colours & Sizes

Latest Cycling Deals & Promos from BikeINN

Browse our latest cycling promos and vouchers now and start saving on everything from cycling jerseys and shoes to road bikes and electric bikes!

BikeINN: Visit BikeINN for some great deals
- Expires: 31 Dec 2026

About: ONeal

ONeal is a well-established brand in the motocross and mountain biking industry, recognized for producing high-quality protective gear, apparel, and accessories for riders. Founded in the 1970s, ONeal has a long history of catering to the needs of off-road and extreme sports enthusiasts. The brand offers a comprehensive range of products, including helmets, jerseys, pants, gloves, goggles, and body armor. ONeal is particularly known for its commitment to rider safety, incorporating advanced materials and innovative design features into its protective equipment. In the mountain biking community, ONeal has gained popularity for its durable and stylish gear, suitable for various riding styles and conditions. The brand's products often feature bold designs and colorways, reflecting its connection to the adrenaline-fueled world of motocross and mountain biking. Whether it's for professional athletes or recreational riders, ONeal remains a prominent choice for those seeking reliable and performance-driven gear that prioritizes both safety and style in the demanding realm of off-road cycling.

About: BikeINN

The Tradeinn network stands as a trailblazer in the realm of online retail, carving a niche as the premier platform specializing in the sale of sports equipment to a diverse clientele spanning Europe. Operating seamlessly across 220 countries, the network has earned the distinction of being the official retailer for an impressive array of 2000 sports brands. Beyond their core specialization, Tradeinn continues to diversify its portfolio by introducing new stores in various industries. This expansion showcases their commitment to meeting the evolving needs of consumers. What sets Tradeinn apart is not only its extensive reach and brand partnerships but also its unwavering dedication to customer satisfaction. With a meticulously curated inventory featuring thousands of top-tier products, the Tradeinn network emerges as the go-to choice for publishers with a keen focus on sports, outdoor activities, children's lifestyle, or cutting-edge tech products.