ONE BIKE HELMET TWO GENERATIONS A modern and safe bike helmet that appeals to two generations at once. The Youn-I 2.0 model has enabled ABUS to bridge the gap between helmets for adults and helmets for young people. Adults are role models for children and should therefore also wear a bike helmet. This could prevent many of the serious brain injuries caused by cycling accidents. However, women with smaller heads often cannot find a helmet that fits them properly. With a simple but modern look, this bike helmet meets the needs of both young cyclists as well as many women with smaller heads. The Youn-I 2.0 boasts a simple, urban and fashionable look that appeals to both generations.Features In-Mold for a durable connection of the outer shell with shock-absorbing helmet material (EPS) Visor-like front edge ensuring enhanced protection for the face Deep temple and neck area for increased all-round protection Large integrated rear LED light in a high position with 180 visibility Zoom Ace Evo precise adjustment system with an easy-to-grip adjustment wheel Size adjustment with a full ring made from hard-wearing and mouldable plastic for optimum stability and form fitting Excellent ventilation with 8 air inlets and 9 air outlets that are connected by flow channels Foamed-in fly net Passive safety thanks to reflectors Helmet size guide Measure your head circumference and use the measurements below for this helmet model. Head circumference Size Head circumference Small 48–54 cm Medium 52–57 cm