Restrap Race Aero Handlebar Bag - BlackRestrap Race Aero Handlebar Bag Black. The Adventure Race Aero Bar bag uses a unique laser cut holster design for ultra distance events audaxes and races when using aero bars. The holster has a dedicated 7L drybag which is front loaded and easy to take on and off the bike. The dry bag is 100% waterproof and secured with a Fidlock magnetic buckle thats easy to adjust even while wearing gloves. Reflective detailing on the dry bag also aids visibility