ABUS has continuously developed every detail to offer you the best possible comfort, protection and style with the 4.0 generation of their Urban-I. The ACE version includes a magnetic Rear Light with additional functions. Whether you commute to work every day, meet up with friends for a relaxed coffee ride or want to be safe and stylish at all times the Urban-I 4.0 is the helmet for you. Making sure that you are seen The Rear Light is now magnetic and rechargeable. As an elegant light strip at the rear of the helmet, it offers 180-degree visibility especially in the dark, at dusk or in bad weather. In the ACE version, you can select Power and Pulse in addition to the Steady and Flash light modes. Two batteries ensure longer operating times. With more powerful LEDs and a diffuser for harmonious light distribution, the Rear Light emphasises your visibility in traffic without dazzling. For a perfect fit The second generation of our Zoom Spin adjustment system for urban helmets ensures even easier and better customisation to your needs: the design is more minimalist, operation of the adjustment wheel is smoother and the Ponytail Fit offers more space for long hairstyles. In the ACE version, the flat Trivider strap divider with fixed positioning emphasises the premium look of the helmet. The most popular comfort features of the previous versions are also back in the 4.0 generation: Magnetic FIDLOCK fastener closes reliably, opens conveniently with one hand Optimal ventilation - with 16 ventilation openings Insect protection net keeps flies and other insects away Washable Comfort Pads particularly durable and hygienic Rediscover one of their most successful helmets.Features Lower edge protection: polycarbonate (PC) outer shell covers the lower edge of the helmet and protects against scratches, impacts and signs of wear and tear Ponytail Fit: thanks to the opening in the height-adjustable adjustment system, the helmet is also suitable for long hairstyles such as ponytails, buns, or braids Reflector Sticker: for better visibility in the dark Bug Mesh: keeps flies and other bugs off your head without messing with the helmet's ventilation Rechargeable, magnetic Rear Light: is attached to the back of the helmet using magnets and ensures greater visibility can be charged with USB-C charging cable Four different light modes (Rear Light): Steady, Power, Pulse and Flash selectable corresponding to light and weather conditions Operating time per mode in h (min.): depending on the weather conditions and type of use, the available usage time of the light is at least 4.3 hours in continuous mode and in flashing mode at least 35 hours Battery charging time (light): the charging time until the battery is fully charged is approximately 1.5 hours IP44: protection class that certifies protection against solid foreign bodies larger than 1 mm and against splash water for electronic products such as lights Clip on peak: removable peak attached with pins to protect against sunlight Zoom Spin adjustment system: rotary wheel at the back of the head for individual adjustment of the helmet to the head size Trivider: particularly flat divider with fixed positioning of the straps to prevent unintentional adjustment Comfort Pads: soft padded inserts for optimum comfort, attached to the helmet with Velcro Removable, washable pads: can be removed and washed by hand or replaced if necessary Magnetic buckle: the straps are fitted with a high-quality, magnetic FIDLOCK buckle to enable the chin buckle to be opened with one hand, even when wearing gloves In-mould process: production process in which the inner cushioning material made of expanded polystyrene (EPS) is foamed directly into the outer shell made of polycarbonate (PC) this creates a durable and robust connection Helmet size guide Measure your head circumference and use the measurements below for this helmet model. Head circumference Size Head circumference Small 51–55 cm Medium 54–58 cm Large 57–61 cm Extra Large 60–64 cm