Compare two waterproof rear-pannier sets by listed capacity, rack attachment, and current offer details.
Tourers who want a 40 L pair
Back Roller Pro Classic. The Ortlieb catalog entry lists 40 L total, split across two 20 L sides.
Riders who need more listed capacity
Thule Shield 25L Pannier Set. Thule lists two 25 L bags, but check that the larger set fits your rack and load needs.
Riders comparing mounting systems
It depends on your priorities. Choose between QL2.1 and Thule's listed 8-16 mm rack attachment after checking your rack.
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| Detail | Back Roller Pro Classic | Thule Shield 25L Pannier Set |
|---|---|---|
| Category | Bags Panniers | Bags Panniers |
| Level | Premium | Premium |
| Key features | Capacity L: 40; Capacity Per Side: 20; Waterproof Rating: IPX4, PVC-coated 1000D nylon; Mounting System: QL2.1; Weight G: 900; Reflective: true; Rail Compatibility: 8-16mm tubular | Selected size: 25L; Selected color: Black; Includes two 25L pannier bags; IPX4 waterproof rating; Attaches to 8-16mm racks without adapters |
| What is included | The catalog lists the selected product's capacity as 40 L total, 20 L per side. | Two 25 L pannier bags are listed. |
| Best for | Touring riders who want two rear bags and a removable QL2.1 mounting system. | Riders seeking a larger matched set with a rack attachment that needs no adapter on the listed rails. |
| Main drawback | The selected offer is expensive, and QL2.1 compatibility should be checked against the rack. | The 25 L size is listed for each bag; confirm that the overall capacity suits your bike and route. |
Specs and included items reflect the cited product listings; check the seller page for current package details.
| Aspect | Back Roller Pro Classic | Thule Shield 25L Pannier Set | Winner |
|---|---|---|---|
| Listed set capacity | 40 L total, listed as 20 L per side. | Two 25 L bags are listed. | Depends |
| Waterproof rating | The catalog lists IPX4 and PVC-coated 1000D nylon. | The selected set is listed with an IPX4 rating. | Depends |
| Rack mounting | Uses Ortlieb's QL2.1 system on listed 8-16 mm tubular rails. | The selected offer lists direct attachment to 8-16 mm racks without adapters. | Depends |
| Reflective details | Reflective details are listed. | The selected offer's catalog fields do not specify reflective details. | Option A |
| Selected offer price | The catalog lists $199.00. | The catalog lists $206.60. | Option A |
The Back-Roller Pro Classic is listed as a 40 L pair with IPX4 protection and QL2.1 mounting.
The selected Thule Shield offer lists two 25 L bags, IPX4 protection, and attachment for 8-16 mm racks.
A smaller, single-pannier option with hook-on mounting for riders who do not need a matched touring set.
Both sets are aimed at riders who want rear-rack storage, and both list IPX4 water protection. The catalog describes the Ortlieb Back-Roller Pro as 40 L total, split between two 20 L bags, while Thule's selected Shield offer lists two 25 L bags. Their attachment systems differ: Ortlieb uses QL2.1, while the Thule listing specifies 8-16 mm racks without adapters. The selected prices are close, so check the rack fit, package details, and capacity you actually need before paying for either set.
We compared the selected catalog offers and their listed specifications. No hands-on testing was conducted; verify package capacity and rack compatibility before purchase.
Our sizing guides and category pages help you narrow the field.