Trailfork Bag - 4L Size:4L so they provide the same

so they provide the same high-quality replacement blades for both the 21” and 15” models

Designed to replace the removable liner in a wide range of footwear

contoured shoulder straps and a spring steel internal frame provide stable

In other words

Trailfork Bag - 4L Size:4L so they provide the sameWhen bikepacking, every mounting option counts. The lightweight, waterproof Trailfork bike fork bag is the perfect addition for fully loading your bike. The Bikepacking fork bag is attached using the extra flat KLICKfix Duo Adapter, which is mounted to the forks using two screw eyelets. The bag is securely fastened to the adapter, sitting close to the fork in a low profile position that keeps the bikes handling stable, even on rough terrain, thanks to