BiKase

Big Daddy Rack Bag - Strap Mount

BiKase Big Daddy Rack Bag - Strap Mount is a high-capacity rear rack bag built for commuters and errand runs that demand more than a standard trunk bag. It straps onto most standard rear bicycle racks, then expands its carrying space with drop-down panniers to keep bulky loads stable and organized without moving weight to a backpack.

• Universal strap-mount fit - Secures to most standard rear racks for a straightforward setup on commuter, hybrid, and touring bikes
• Drop-down panniers - Adds side storage when needed for grocery runs or extra layers, then tucks away when riding lighter
• Seam-sealed waterproof liner - Helps protect gear in the main compartment from rain and road spray
• Fits racks up to 7.5" wide - Compatible with many common rear rack platforms without fussing over special hardware
• Top bungee storage - Quick-carry option for a jacket, gloves, or other items that need fast access
• Water bottle holder + shoulder strap - Carries a range of bottle sizes on the bike and converts to an easy grab-and-go bag off the bike