Ortlieb Seat-Pack QR

Yes, but you will need to purchase the optional dropper post adapter separately. This ensures the bag remains stable and doesn't interfere with the post's travel.

The quick-release system is engineered for stability and is designed to lock securely onto standard saddle rails. Combined with the air-release valve, which lets you compress the bag tightly, it stays rattle-free even on technical gravel or off-road trails.

It is fully waterproof with an IP64 rating. The combination of PU-laminated nylon and a secure roll-top closure ensures your gear stays completely dry, even in heavy rain or mud.

Yes, the integrated plate is designed to protect the bag from tire spray and debris, effectively acting as a mini-fender. It also adds structural rigidity to the bag, helping it maintain its shape.

For the best stability, pack your heavier items closer to the seat post and lighter gear toward the back. Once packed, use the integrated air-release valve to squeeze out excess air before rolling the top shut to ensure a compact, secure fit.

It is compatible with most standard saddle rails. However, because of the quick-release mechanism, it may not fit saddles with unconventional rail shapes or those with very limited clearance between the rails and the seat post.