The Back-Roller Core is the solid base bag among the Back-Rollers and yet 100% waterproof. With its robust polyester fabric, it's not only suitable for extended bike tours but also ideal for daily urban commutes. With the Back-Roller Core, you're always ready to transport important items dry and securely – whether it's on your way to work, shopping, or other urban adventures. A reliable companion that withstands the elements and simplifies your everyday life. If the basic functions of the Back-Roller Core are ever insufficient, this practical bag can be expanded with various optional accessories. The Carrying System Bike Pannier helps carry the Back-Roller Core on your back, various inserts provide stability to the bag body off the bike, or offer better organization inside the rear bike bag. FURTHER PRACTICAL DETAILS - High-visibility reflectors on the outside of the bag.

Rear pannier (single bag) with three-dimensional front pocket and roll closure; Quick-Lock 2.1 System; PU-coated Cordura fabric, incl. inner pocket, large reflectors, shoulder strap with two fastening options on the bag. Can be combined with rack pack 24 L and 31 L on the rear rack. Separately available accessories: Pannier Stabilizing Insert (F3911), Packing Cubes/Pannier Commuting Insert; Carrying System Bike Pannier (F35); Anti-theft device (E125); Outer pocket 2.1 L; Mesh pocket (F9121); QL2.1 hook 18 mm (E211) & 20 mm (E193).

• Vinyl coated hooks • 9 mm diameter • Black

The Jandd Reflector Mount allows riders to attach a reflector to a rack.

Universal shoulder strap for ORTLIEB bags. Includes D-rings, plastic shoulder pad and carabiners. For Bike-Packer and Sport-Packer models from 2009 and for all Back-Roller City, Sport-Roller City and Gravel-Pack models. DETAILS: - 1 shoulder strap with carabiners

For all models from 1999 Need to replace a defective buckle? DETAILS: - 1 plastic, side-release buckle

Replacement bracket and hardware for Origin8 Classique and Rush front cargo racks

Spruce-up a well-loved Dummy bag with replacement parts from Surly.

Spruce-up a well-loved Dummy bag with replacement parts from Surly.

Spruce-up a well-loved Dummy bag with replacement parts from Surly.

Bolt-on eyelet for use with Tubus Lowrider racks and bags requiring bungee hook attachment.

Replacement hardware, bolts and nuts for Wald baskets. Works with Wald Basket models: 520, 520GB, 535 and 535GB

Spruce-up a well-loved Dummy bag with replacement parts from Surly.

- Bike rack RR 290 mm strut kit with hardware - Great for smaller frames - 4 bolts & nuts - 1 set/bag

Models with the QL1 system from 2005; Models with the QL2 system. The right hook inserts allow you to securely attach your ORTLIEB pannier with its proven QL1 or QL2 mounting system (16 mm) to virtually any bike rack. - 2 inserts measuring 8 mm - 2 inserts measuring 11 mm

Banjo Brothers' Phone Wallet is ingeniously simple and effective. This durable, water-resistant pouch weighs next to nothing yet it keeps your phone, ID, and spare key protected. It features a full-length zipper and a headphone slot, too.

Disc brake compatible leg for Megarack

For all models, including the Back-Roller and Sport-Roller, with Stealth buckles Need to replace a pair of broken buckle? - 2 plastic buckles (male and female ends, 25 mm, black)

It's always a good idea to have backup hardware. This is a replacement hardware pack for Portland Design Works Payload or Loading Dock rear racks. - 2x P clamps - 4x nyloc nuts - 4x hex bolts

This elastic net secures awkward loads to bike racks, or it serves as a hammock for your cat. These may vary slightly from the photo since we get them from a couple of different suppliers, but they all work equally well. Approx. 14" x 15" unstretched.

These are simple polished stainless steel struts which can be used to mount many of our racks to your bike's brake bridge or fork crown. Available in Small and Large sizes. - Small is 8.5cm long from end to end - Useful for mounting our Constructeur Rear Rack to your brake bridge. - Useful for mounting our Constructeur Rear Rack to your brake bridge. Also used for mounting our Randonneur, Constructeur Front, and Porteur Racks to your bike's fork crown. - Note: not required if you mount the rack to metal fenders, as is traditional.

Replacement leather strap for wicker and wood baskets

Featuring composite construction, Lezyne's Caddy QR Mount provides a simple attachment to your seat rails. It's compatible with all Lezyne QR Caddys.

Topeak's Cargo Net works with the Trolley Tote or MTX Rear Basket (sold separately). Make sure your goods stay in place on those bumpy rides home!

QuickClick mount for racing type saddles. Works with all Topeak Wedge Bags. - Material : Injected Nylon - Weight: 30g / 1.06 oz

- The seat bag alternative - Stash your stuff at a lower center of gravity - Two convenient size options, small or large

The shoulder strap for your Ultimate Compact, Bike-Box, E-Glow, E-Mate, Velo-Shopper, Trunk-Bag RC or Bike-Tourer is just what you need to carry on once you reach your destination. CONTENT: - 1 shoulder strap with plastic pad

Are you trying to carry an oddly-shaped item on your rack? Sunlite's Bungee Cargo Net will secure it for the ride home. It is 13 x 13 inches in size and the 4 vinyl coated hooks help secure it to your rack.

This mounting set allows you to attach your Saddle-Bags to other bicycles. For all Saddle-Bag, MudRacer and Micro models. - 1 mounting set for Saddle-Bags, including screws

Replacement stays for a variety of Tubus racks. Every roundstay is made out of solid aluminum, and they are available in various lengths and offsets. - 8mm diameter stay - Drilled for M5 bolts