10 Best Mountain Bike Helmet of December 2025

• MARKET-LEADING PROTECTION: Engineered in Giro’s category-leading helmet test lab
• INTEGRATED MIPS: Utilizes the Multi-Directional Impact Protection System to redirect energy in a crash
• VENTILATION: 18 Wind Tunnel vents with internal channeling
• RUGGED: In-mold construction
• UNIVERSAL FIT SIZING: Get the right fit, straight out of the box

Giro

• 【Superior Protection】: The Mokfire cycle helmets boast extended rear coverage, Energy Optimized Multi-Density EPS foam that manages the energy from impacts effectively which is helpful to decrease the impact forces and protect the rider's head during crash.
• 【Good Ventilation】: The 15 large vents enhance the air flow inside the helmet and allow air go through the helmet for an optimal temperature regulation in your head to keep the cyclist cool.
• 【LED Safety Light】: This bike helmet with CPSC and CE Safety Standard, equipped with USB rechargeable LED light which included 3 lighting modes - steady, slow flashing and fast flashing, which will help people behind you clearly recognize your direction and provide more protection and visibility when you're riding at night.
• 【Upgrade Adjust System】: The biking helmet goes with a standard size, equipped with the dial fit retention system and lets you easily secure and adjust helmet fit with your head. Besides, camera mount could record and capture more wonderful shots on the way.
• 【Detachable Visor】: The long detachable visor can protect the eyes from the sun. Package including manual instruction; USB charge cable and soft, comfortable, moisture-wicking, and washable helmet pads.

MOKFIRE

• Shell Material: Aero core, Korey
• Impact Foam: EPS
• Ventilation: 15 optimized vents, Arenac
• Fit Adjustment: Vapor Fit system
• Visor: 3-position adjustable

Smith Optics

• Comfort : Super fit designed for the purpose of asian and western head shape.  Clean Tex Pads are be specially treated and therefore is suitable for wearing. As a consequence, longevity and long-lasting hygienic freshness is achieved. Chinpad Optimal wearing comfort in the chin area.
• Lightweight : Weight size is 550g/ 19.4 OZ, Size is M/L ((56-62cm/22.04-24.41 IN). Actively ushers cool air over the head and regulates temperature by drawing cool air into the intake ports and circulating it through a matrix of air channels. 25 Big vents provide improved airflow and reduced weight.
• Safety : Complies with CE EN 1078 CPSC 1203 AS/NZS 2063 safety standards for helmet for cycling and use with skateboards and roller skates for persons age 5 and older.
• Unique details design : Outer Shell Construction: In-mold polycarbonate shell with EPS liner .Inner Shell: Thermoformed reinforcement shock absorbing polystyrene.LFS - Light Fit System.19 Wind Tunnel vents with internal channeling.Removable protective chin bar, designed for trail riding adaptability. Plug in with a simple 1-step connection process no tools needed .
• Protection : Removable protective chin bar, designed for trail riding adaptability. In-mold Construction Multi-density impact reduction system provides superior protection.Super and Comfort Fit with an easy-to-turn rubber overmolded dial for adjustments.Adaptable and Colorful visor system accommodates both goggles and glasses and works with or without the visor attached .

Leeworks

• PASS CPSC & CE CERTIFIED - This GROTTICO bike helmet meets US & EU cycling standards.
• ADJUSTABLE DIAL & STRAPS - The adjustable fit system for men and women. 2 sizes for choice, suggested head circumference: M (55-58CM), L (59-61CM)
• INTEGRATED SAFETY REAR LIGHT - Bicycle helmet with USB rechargeable light. Best for night riding with 3 lighting modes, Steady, Flash and Wave.
• TOUGH & LIGHTWEIGHT - In-mold construction fuses a tough polycarbonate outer shell with the impact-absorbing foam liner. The fusion process makes in-mold helmets lighter and cooler than traditional helmets.
• KEEP YOUR HEAD COOL - 23 vents keep ample ventilation. Provide one more set of helmet replacement inner pads and two different color visors to collocation.

GROTTICO

• MARKET-LEADING PROTECTION: Engineered in Giro’s category-leading helmet test lab
• MIPS: Utilizes the Multi-Directional Impact Protection System to redirect energy in a crash
• COMFORT: Easily adjust vertical position and tension with the Roc Loc 5 fit system
• GOGGLE COMPATIBILITY: Fully adjustable P.O.V. Plus visor
• VENTILATION: 14 Wind Tunnel vents with internal channeling

Giro

• FIT SYSTEM - Adjustable Size: 22.83 - 24.02 inch (58-61 cm).
• PROTECTION - PC shell with EPS hard foam provides reliable protection in a low-profile design. Meets CPSC and EN 1078 standards for bike and skate.
• COMFORT - Featuring our Crank Fit dial adjustable fit system, tried and true EPS/PC construction, and a moisture-controlling premium Replaceable liner, the Watts fits and feels great. The lightweight, in-mold shell has 11 vents and internal channeling for maximum airflow to keep you cool as a cucumber, all day long.
• ADJUSTABLE & REAR LED TAIL LIGHT - Safety Colorful Flashing Tail Light. Warning the Cars or help other riders behind you clearly recognized your direction, Safer and Shine in Night Cycling.The Light used one CR2032/3v button battery, it is very easy to change the battery.
• SERVICE - 100% Satisfaction Guarantee as all PTSOC products. If for any reason you don't feel comfortable with our helmet, we can assist you with any doubt you may have or refund you if necessary. Your safety is our priority.

• The bicycle helmet is made of strong PC shell and high quality EPS foam, providing more safety with the integrated-moulding technology.
• Helmet size is 56-61 cm (22-24 inch). Suitable for adult, men, women, youth, teen. Chin straps and rear dial adjustment are easy to adjust for custom fit.
• Designed for various mountain biking activities, especially for enduro and trail. By detaching the visor, it is suitable for road bike in city and urban.
• Lightweight material and 16 vents keep user cool. Soft inner pads, chin straps and chin pad provide more comfortable user experience.
• Detachable visor is easy to remove and install. Package includes 1 helmet & 1 carrying bag.

OUWOR

• Protection: This mountain bike helmet is US CPSC standards certified. Material of thickened multi-density EPS foam inside helmet absorb impact energy effectively to minimize the risk of harms to head in crash, and extended rear shaped guarantees full protection to cranial part of head. Exploring the rough and rugged mountain trails become more reassured on safety and more enjoyable
• Optimal Ventilation and Lightweight: To guarantee you benefit from optimal ventilation and save physical strength at same time with this MTB bicycle helmet, 18 air vents is formed on this bicycle helmet while it weights only 280g. Experience of mountain adventures are quite fatigue-free and comfortable with cool airflow
• Adjustment System: Single-Hand dial retention system is easy to adjust and secure the cycling helmet perfect fit on your head, It is very important for you to get helmet on head properly because potential dangers occurs easily with small or big size helmet. please measure your head circumference correctly before purchase, This helmet fits head circumferences 22.05-24.01 inches(Adult Sizes)
• Reinforced Large Sun Visor: Sun visor on bicycle helmet is essential to all-mountain biking lovers, This reinforced large sun visor is designed perfectly to match this biking helmet for you - Visor is easy to move upward and secure to offer you broad sights to keep safe, Vents on Visor guarantee airflow pass to keep you cool. More, Large visor with insert-net can better keep discomforts from sun, leafs, other elements away to make you 100% attention on cycling
• High quality service: Exclusky team fully stand behind all Exclusky products, if you are not satisfied with our product for any reason at any time, please contact our Exclusky team timely and we will make it right

Exclusky

• 【Rechargeable USB Light】9 lighting modes for choosing, can be charged fully in 2 hours. The USB taillight on the helmet increases visibility in both bright and low-light conditions. The light can help people behind you clearly recognize your direction, safer for your night cycling.
• 【Head Protection】 The bike helmet has deeper coverage on head rear section. Innovative in-molding system bonds the outer shell to thick EPS foam liner to create a sturdier helmet, offers great mechanical strength and shock resistance, protecting you on both road mountain cycling and daily commute.
• 【Ventilation】 With the ergonomic air guide groove design and streamlined design, 16 large vents guarantee optimum airflow, can reduce air resistance and greatly enhance comfort, allowing you to stay cool all the time even in warmer climates.
• 【Two ways to wear】The visor on the helmet provides constant coverage against sun and rain. It is detachable if you don't want to attach it on the helmet. Breathable and soft mesh lining is comfortable to wear, removable and easy to wash.
• 【Adjust Size】 Single hand dial actuated retention system on the back of the helmet and Y-strap system provides easy adjustment. With an adjustable size, the bicycle helmet is suitable for most adults with the head circumference of 54-61CM/21.26''-24''.

MOKFIRE