DESIGN HIGHLIGHT IN THE CITY. The HUD-Y ACE is the perfect urban companion: It embodies an urban lifestyle and is a real eye-catcher in any city. The popular rechargeable rear LED of the HUD-Y models protects cyclists in the often confusing city traffic: With four light modes, the magnetically attachable USB light strip becomes a bright companion on the road. In the ACE model, the glass visor replaces the flip-up/fold-down screen of the HUD-Y. Depending on riding conditions, riders can slide the integrated glass visor up and down. The helmet becomes a fashionable accessory thanks to the various attractive color designs. For anyone who wants to be stylish and protected on their bike.