The Hold Fast Half Frame Bag allows you to take advantage of the space in the triangle of your bicycle frame, providing a home for awkwardly shaped essentials like a pump, tent poles, or a hydration bladder. Talk about practical storage! Choose from three different sizes to ensure the right fit for your bike.
2.75 L: 16.5” X 3.75” X 2.25” | 3.5 L: 18.75” X 4.25” X 2.25” | 4 L: 20.25” X 5” X 2.25”

2.75L Hold Fast Half Frame Bag Specs
Measurements: 16.5”L X 3.75”H X 2.25”D
Capacity: 2.75L
Weight: 5.75 oz
3.25L Hold Fast Half Frame Bag Specs
Measurements: 18.75”L X 4.25”H X 2.25”D
Capacity: 3.25L
Weight: 6.5 oz
4L Hold Fast Half Frame Bag Specs
Measurements: 20.25”L X 5”W X 2.25”D
Capacity: 4L
Weight: 7 oz
Materials List
Country of Origin: Indonesia
Materials List
Feature Callouts
The Hold Fast Frame Bag is our number one solution for smart, inconspicuous storage on your bike. The main compartment is accessed via a drive side water-resistant zipper. A smaller zipper pocket on the non-drive of the bag is perfect for a snack or cell phone. To accommodate a variety of frames, there are webbing daisy chains on the top panel for flexible attachment points and extra long fixed Velcro straps intended to be cut-to-fit to your needs. On the top of the bag we added an exit port for a hydration hose or power cable, and along the underside of the bag there is a webbing daisy chain that runs the length of the bag for additional lash points for items like a pump, tent poles.
Find our sizing guide under the “Specs” tab to ensure the best possible fit with your frame.