Topeak BackLoader X Seat Bag

No, the BackLoader X is designed as a rack-free system. It mounts directly to your seatpost and saddle rails, making it ideal for bikes that don't have rack mounts or for riders who prefer a minimalist setup.

The integrated air-release valve allows you to squeeze excess air out of the bag after packing your gear. This compresses the load, creating a tighter, more stable profile that prevents the bag from swaying while you ride.

The BackLoader X features a dedicated waterproof inner bag to ensure your clothes and electronics stay dry in wet conditions. The outer shell is constructed from durable, weather-resistant materials to handle road spray and light rain.

The mounting system utilizes anti-slip fabric at the contact points on the seatpost and saddle rails. When tightened properly, this creates a secure, stable connection that significantly minimizes side-to-side movement.

The 10L version is generally better for shorter trips or riders with limited tire clearance, while the 15L version is ideal for multi-day bikepacking where you need extra space for bulkier items like a sleeping bag or extra layers.