The Bikase Long John takes top tube bags to the next level. Need more space than the Trifly but really don't want a full-fledged frame bag? Then the Long John is the perfect option for you. With multiple mountain straps and positions, the Long John can be mounted like a traditional top tube bag, or… flip it over and use it like a frame bag. With side zippers, it doesn't matter how you mount it… your gear always remains in reach!