Gudook Bike Helmets for Men - Women Bicycle Helmet Adult - Certified Lightweight Comfort Adjustable Cycling Helmet with Detachable Visor for Mountain Road Biker is up for auction in Sports & Outdoors. The current bid is $11.00, 45% below the $20.00 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.