Dunlop MTB Adjustable Bicycle Helmet Size M 55-58 cm Blue-Black

Riding off-road demands confidence, and a helmet that shifts or feels heavy can break your focus. The Dunlop MTB helmet in size M (55–58 cm) eliminates that distraction with a secure, customised fit and rugged protection, so you can tackle trails, roots, and rocks without second-guessing your gear. Its blue-black finish keeps you visible and stylish, while the adjustable dial and quick-release buckle make it effortless to put on and take off, even with gloves.

Who is it for

Built for adult mountain bikers and trail riders who need reliable head protection without the bulk. Whether you're a weekend singletrack enthusiast or a daily commuter on rough paths, this unisex helmet adapts to your head shape and riding style. The medium size fits head circumferences from 55 to 58 cm, and the adjustable fit system ensures a snug, wobble-free feel for most adults.

Main features

• Adjustable head circumference dial for a personalised, secure fit
• In-mold construction with polycarbonate outer shell and EPS foam liner
• Multiple vents (18) for continuous airflow and heat management
• Integrated visor shields your eyes from sun, rain, and trail debris
• Quick-release buckle and adjustable chin straps for easy on/off
• Removable, washable inner pads keep the helmet fresh ride after ride
• Meets CE EN 1078 safety standard for cycling helmets

Specifications

• Brand: Dunlop
• Model: 871125224002BLUE
• MPN: 871125224002BLUE
• EAN: 5904501205139
• Helmet type: MTB (Mountain Bike)
• Target user: Adult
• Size: M (Medium)
• Head circumference: 55–58 cm
• Colour: Blue-Black
• Adjustability: Adjustable head circumference dial
• Strap system: Adjustable chin straps
• Ventilation: 18 vents
• Construction: In-mold technology
• Outer shell material: Polycarbonate (PC)
• Inner shell material: Expanded Polystyrene (EPS) foam
• Visor: Integrated/removable
• Safety standard: CE EN 1078
• Closure type: Quick-release buckle
• Padding: Removable and washable inner pads
• Gender: Unisex
• Application: Mountain biking, trail riding, recreational cycling

Tips

To get the most from your Dunlop helmet, adjust the rear dial until the helmet sits level on your head—about two finger-widths above your eyebrows. The chin strap should be snug but not tight; you should be able to fit one finger between the strap and your chin. After muddy rides, remove the inner pads and hand-wash them in mild soap, then air dry. Replace your helmet after any significant impact, even if no damage is visible, to maintain CE EN 1078 protection.