Adjustable bike helmet
$42.00
This bike helmet features a 56–63 cm wide adjustable headband with a rotating knob, making it suitable for different head shapes of adults and teenagers. Equipped with 18 honeycomb ventilation holes for excellent heat dissipation, it ensures a cool and comfortable ride. The detachable soft inner lining provides easy cleaning and added comfort. Perfect for commuting, mountain biking, and road cycling, this premium bike helmet delivers both safety and performance.
Free Shipping Within the U.S.
Enjoy free shipping on all U.S. orders — no minimum required. Your new helmet will be delivered fast and securely anywhere in the United States at no extra cost.
Premium Quality & Comfort
Each helmet is designed with lightweight materials, advanced ventilation, and certified safety protection, ensuring comfort and reliability on every ride.
30-Day Free Returns
Shop with confidence! If your helmet doesn’t fit or you simply change your mind, you can return or exchange it within 30 days, and we’ll cover the return shipping fee.
- For mountain biking, which features frequent collisions and obstacles, a fully enclosed structure is adopted. The key areas of the back of the head and the temples are fully covered, increasing the protective area by 40% compared to ordinary helmets. When encountering rocky roads and steep slopes and falling, it can effectively cushion the impact force. It has passed the CPSC mountain biking special certification, allowing outdoor enthusiasts to ride with peace of mind.
- A lightweight helmet specially designed for urban daily use, with a total weight of only 280g. When worn, it offers almost no pressure sensation, eliminating the “head heaviness” problem that plagues long rides. The precisely arranged honeycomb ventilation holes, combined with aerodynamic design, allow air to flow rapidly through the helmet during riding. In summer, it can keep the head dry and prevent excessive sweating due to heat.
- A lightweight helmet specially designed for urban daily use, which offers almost no pressure when worn. Say goodbye to the “head heaviness” problem caused by long rides. With 18 precisely arranged honeycomb ventilation holes and aerodynamic design, the air flows quickly through the helmet during riding. Even in summer, it can keep the head dry and prevent excessive sweating.
- To address the pain points of traditional helmets, such as “fixed head circumference, and the helmet cannot be used with a different head” this helmet adopts a dual adjustment design of “rear rotating knob + two sides of Velcro”. The head circumference coverage is 56-63cm – suitable for adults (both male and female) and teenagers over 150cm in height. Even round or long head shapes can be perfectly fitted without loosening. No tools are needed for adjustment. Just rotating the knob with one hand can fine-tune the tightness, and it takes only 3 seconds to put on or take off. It is convenient for family use and borrowing among friends, avoiding the waste of “one helmet for one person”.
- The streamlined shell specially designed for road racing has been optimized through wind tunnel testing, with a wind resistance coefficient 25% lower than that of ordinary helmets. During long-distance rides (such as 100km+), it can reduce physical exertion and help increase the riding speed. It is suitable for professional riders and cycling enthusiasts for training and competitions.
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