Search  for anything...
ROCKBROS

ROCKBROS 15L Bike Rear Rack Bag Pannier Trunk Bag with Rain Cover | Large Capacity Storage Bag Detachable Shoulder Strap Bicycle Trunk Rear Rack Bag Fits All Bikes E-bikes for Daily Cycling

  • Based on 2,679 reviews
Condition: New
Checking for the best price...
$35.90 Why this price?
Save $3.99 was $39.89

Buy Now, Pay Later

As low as $8 / mo
  • – 4-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: Only 3 left in stock, order soon!
Fulfilled by Amazon
Arrives Thursday, Aug 13
Order within 5 hours and 16 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Number of Items: 1


Features

  • MULTIPLE COMPARTMENTS & EXTENSIBLE DOUBLE SIDE POCKETS: 15L Maximum capacity bike trunk bag main compartment with a removable board, and some inside pockets to help with a bit of organization for small things. Fold-out pockets on each side for expanded capacity to hold a lot of side items and incidentals. For a day ride or daily commute, this is a good choice
  • STABLE CONSTRUCTION & PROTECTION: Thicken foam pad fills the inside bottom and sides of the trunk bag for holding its shape and protecting your items. It will not collapse to one side or the other even if nothing is in it
  • WATERPROOF RAIN COVER: The product comes with a waterproof rain cover and a carrying strap. There is no need to worry about waterproofing. In case of light rain or even heavy rain, you can choose to use a waterproof rain cover to achieve the waterproof effect.
  • REFLECTIVE STRAPS & COMPATIBLE WITH TAILLIGHT FOR SAFETY: Reflective straps on the bike luggage bag provides good visibility, the strap at the back for attaching rear light. You'll want to add some reflective items to ensure your safety if you're a night rider
  • EASY TO ATTACH & STAYS IN PLACE: 2 straps on the front of the rack, the 2 long straps going across the rack as well as 2 fixed buckle, it's fastened securely to the rack and doesn't shift. Bike rack bag fits for any racks, such as fat bikes, e-bikes and other commuter bikes

Description

For daily use, we offer you a free shoulder strap to carry Package Includes: Bike Trunk Bag*1 Rain Cover*1 Shoulder Strap*1 Tail light not include On the back of the bike trunk bag we have added a pocket for water bottle bag which is adjustable. 13L Maximum capacity Compartment with a removable board, Convenient store items .Take out or place it for different need. Classified Storage Mesh layering designed on Internal cover for more easier classified storage your items. More secure design You can put some items on the rack bag, such as clothes, mini pumps and fastened securely. 4 Strap Fastened Securely 2 straps on the front of the rack, 2 long straps going across the rack as well as 2 fixed buckle. ROCKBROS 13LBike Rack Bag Our Hard Shell Rack Bag Carbon Leather Rack Bag ROCKBROS Bike Panniers Waterproof Bike Bags One-Piece Folding Bag Bike Rear Bag

Color: black


Size: small


Brand: ROCKBROS


Material: Polyester


Vehicle Service Type: Bicycle


Compatible with Vehicle Type: Bicycle


Mounting Type: Rack Mount


Strap Type: Adjustable


Capacity: 15 liters


Closure Type: Drawstring


Handle Type: Web Handle


Number of Compartments: 1


Automotive Fit Type: Universal Fit


Water Resistance Level: Waterproof


Size: small


Item Dimensions L x W x H: 13.9"L x 6.6"W x 6.4"H


Material Type: Polyester


Shell Type: Soft


Brand Name: ROCKBROS


Manufacturer: ROCK BROS


Unit Count: 1 Count


Number of Items: 1


Number of Packs: 1


Model Number: A9-BK


Manufacturer Part Number: A9-BK


Color: black


Pattern: Solid


Style Name: Expandable Bags


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Aug 13

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Fits all your needs
Number of Items: 1
Great bag! Straps down tight on back rack and has lots of storage
Reviewed in the United States on July 28, 2026 by Gibson
    • Well made bag
Number of Items: 1
Review Image by GrapeGumBeneathYourDesk
Review Image by GrapeGumBeneathYourDesk
Review Image by GrapeGumBeneathYourDesk
This bag is well made and sturdy. There is a flap to cover the zipper to help keep contents dry. A rain cover and carry strap are included. It holds a bottle with maximum diameter of 3 inches. I have a 24 ounce Takeya bottle pictured in the holder. I had to scooch the bag forward on my rack, so it hangs over the front about half an inch or so. Otherwise, the bottle holder rested on the raised "tail" and pushed the bottle out. The velcro straps for anchoring are generously sized. My rack is shaped more like a trapezoid than a rectangle, and there was no issue with holding either end securely. I'm underwhelmed with the panniers. They are small, but I was tired of asking Alexa to translate centimeters to inches for me while shopping for bags, so I just hoped for the best. They'll do in a pinch for small extra items, but don't plan on using them to carry anything over 8 inches tall or wide. The zipper opens starting halfway down the pannier. I would have preferred it to zip across the top only, giving the option to carry an item sticking out the top slightly. ... show more
Reviewed in the United States on March 24, 2022 by GrapeGumBeneathYourDesk
    • Great bag, but straping system needs improvement
Number of Items: 1
The bag appears to be holding up and is of decent quality. The only complaint I have with it is the straps used to hold the back onto the bike rack - they are using velcro. While traveling to a place to ride I have to remove the bag from the bike because the amount of wind pushing against the bag on the bike carrier is tremendous, so there is a lot of taking the bag on and off the bike rack. Over time the velcro will wear out. Also, the velcro is too long for the bike rack so I have to crisscross the straps under the frame to be secure. I would prefer a buckle system for this instead. Overall I like the bag, just the strapping system could be improved. ... show more
Reviewed in the United States on July 31, 2026 by Ronald Dorn
    • Bike rack bag
Number of Items: 1
It does fit on Aventon Sinch 2.
Reviewed in the United States on July 8, 2026 by Carol L Monroe
    • Perfect fit
Number of Items: 1
Review Image by Cesar Zermeno
Great add to my bike. Straps make sure it attaches securely and is relatively easy to tighten and adjust. Perfect amount of storage for my afternoon ride with my daughter on our snack run.
Reviewed in the United States on May 8, 2026 by Cesar Zermeno
    • Very durable
Number of Items: 1
Nice bag good size
Reviewed in the United States on August 3, 2026 by Annie
    • Easily attached to rack. Holds alot
Number of Items: 1
Great product. Looks great on my mountain bike. Will attach to any rack
Reviewed in the United States on May 9, 2026 by Jeffrey
    • Nice rack bag
Number of Items: 1
My last one lasted 5 years before the zipper broke. I like them and bought another.
Reviewed in the United States on July 6, 2026 by Richard Ames

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...