With the Hold Fast Half Frame Bag, Swift Industries has at last entered the triangle! On the underside of the bag there is an external daisy chain that runs the length of the bag to allow of the lash-on of additional items like a pump, tent poles etc.
Looking for solutions to running a half frame bag and maintaining water bottle clearance? Check out this incredibly useful mounting base from Wolf Tooth.
Find our sizing guide under the SPECs Tab to ensure the best possible fit with your frame.
Challenge Sailcloth ECOPAK (EPLX400) shell fabric
Challenge Sailcloth recycled polyester bag cloth rip stop (450D)
Large, main pocket and small, external organizer pocket
YKK water resist zippers
.125″ closed cell foam for padding at top tube and downtube
Nylon mesh stabilizer along top tub to add rigidity and support.
One-wrap velcro attachment straps with flexible mounting points for top tube
Hydration hose/cable port on top panel of bag
Made in Seattle, WA.
- 2.8 L: 17.5” X 4” X 2.25”
- 3.5 L: 19.5” X 4.5” X 2.25”
- 4 L: 21” X 5.25” X 2.25”
- Capacity: 2.75 Liters, 3.25 Liters, 4 Liters
- Weight: 5.75 oz, 6.5 oz, 7 oz
Unsure about the right size Hold Fast Half Frame Bag for your bike? Print out templates of the bags to test sizing at home:
1) Choose the file for the paper size you will be printing on. There are files sized for the Letter paper size common in North America and A4 for the rest of the world.
2) Print out the first page of the file at 100% scale
3) Measure the lines marked 100mm in the bottom left corner of the printout. If both measure 100mm, proceed to the next step. If the measurements are off, adjust the scale in your printing software. Most software only allows scaling as a percentage, but since this is 100mm, it should be easy to do the math—a measurement of 99mm should be printed at 101% scale, 102mm printed at 98%, and so on. If the two lines do not measure the same, aim to get the horizontal line correct. Reprint the first page until the measurement is correct.
4) Print the second page at the same scale that worked for the first page
5) Line up the printouts – there are registration marks to aid in this process. Tape one page to a window and then line up the registration marks on the other page. Once lined up, tape the two pieces together. Note that on 4L size, the registration marks may be outside of the printer’s margins. Confirm that the lines demonstrating the length and height of the bag are measuring as specified, then cut out the outline of the bag.
6) Compare the cutout to the bicycle frame, repeat for smaller or larger bag sizes until satisfied with the fit.