Improved for 2014, the Boulder Beta Rear Bag is the latest step in the evolution of the Duffel-Bag-with-Legs. Go further with extra capacity and extra stability, now with waterproof liners. Over ten years of evolution rest behind the new Boulder Beta Rear Bag. Designed to fit medium and big adventure bikes, it also fits sport, standards and cruisers. A contoured seat channel hugs the bike and “legs” add capacity, helping to keep the weight low and out of the way of the rider. Constructed of full ballistic-vinyl for durability, the bottom is triple-layered with 3/8″ foam, and Slip-Not material for strength and stability. The solid 4-point mounting system comes on and off the bike quickly and easily, and heavy duty 1.5″ and 2″ compression straps keep the load snug.
A wide, crescent zipper gives full access to contents. Inside, a wide Clear Mesh pocket keeps small items handy; the pocket doubles as a compression layer to cinch internal items, making opening and closing the Boulder Beta easier. (Pocket can be removed.) Three tailored waterproof liners keep gear dry and slide into place to simplify packing. Or just load up the 60+ liters of space will all the gear needed for a weekend or longer trip. Need more space? Use the included Quick-Clip duffel straps to add an additional duffel to the outside of the bag — try the waterproof Renegade Duffel. $499