Rhinowalk Motorcycle Tail Bag — Expandable 80L Waterproof Trunk Bag with Sissy Bar Straps (Black)

The Rhinowalk Motorcycle Tail Bag is an expandable, weatherproof 80L travel luggage solution that secures to racks and sissy bars and converts to a shoulder bag.

Built for riders who need large, adaptable storage without a permanent hard case, this soft trunk bag balances capacity, stability and weather protection. It combines reinforced framing, tear-resistant fabric and a dedicated rain cover so gear stays put and dry on multi-day rides or urban trips. The bag compresses for storage when not in use and adds external lash points for helmets or extra kit when you need them.

How much gear does the bag actually hold?

The Rhinowalk tail bag provides a practical range of volumes: a compact 60L for everyday trips and an expanded 80L for longer journeys. When not in use it folds flat for minimal storage space.

• Normal capacity: about 60 liters (19.6 x 13 x 14.1 inches)
• Expanded capacity: about 80 liters (26.7 x 13 x 14.1 inches)
• Folded storage size: approximately 16.1 x 13.4 x 4.5 inches

Will it stay secure on rough roads and harsh weather?

Yes — the bag’s internal reinforced steel wire and PE board maintain shape and resist bouncing, while a non-slip, wear-resistant base helps it grip racks. A fitted rain cover with a drawcord prevents water ingress and stays attached even in windy conditions.

• Reinforced frame reduces flex and shifting
• Anti-slip bottom material for stable mounting
• Dedicated rain cover with drawcord for reliable waterproofing

How does it attach and adapt to different bikes?

Multiple mounting straps and thoughtful fastening features make it versatile across many motorcycle styles. Four rack straps secure the bag to a luggage rack, sissy-bar straps stabilize it behind the seat, and extended straps let you lash large items externally.

• Four attachment straps for rack mounting
• Sissy bar straps for rear-seat or backrest fitment
• Two extended straps to secure oversized cargo
• Buckle with push-button after tightening to prevent strap loosening from bumps

What convenience features help during trips and storage?

The bag includes practical details that make packing and daily use easier: a top elastic cord for quick-stow items, a dual-zippered pocket layout for organized access, and a detachable shoulder strap to carry the bag off-bike.

• Top elastic cord to hold jackets or quick-access items
• Double-sided zipper pocketing for sorting essentials
• Detachable shoulder strap converts the bag to a carry option

Who is this for: Riders who need a flexible, high-capacity soft luggage option—especially ADV and touring motorcyclists, weekend travelers carrying helmets or wet gear, and commuters who want a removable bag that doubles as a shoulder pack. The Rhinowalk tail bag suits medium to large adventure bikes, mid-range street motorcycles and urban cruisers that require stable, weather-resistant rear storage without permanent racks or panniers.