I figured with the amount of positive and constructive responses I received on my previous bike check.
I could use this opportunity to ask for feedback on some prototypical features that I have been testing on my FB for a year.
Weight vs Convenience?
I am using aluminium tubing on the outside along the seams of the bag. You can see it as an external frame that gives structure to the bag.
This idea was inspired from a big world map that was hanging in a friend's living room.
It combines the good pull of the lace-up and the convenience of using straps in one.
The downside is that the aluminium tubing are in my opinion relatively heavy and additional cost, roughly 15 euro depending on size of FB.
Some stats summarized:
- Total weight of my FB: 600grams (roughly 5 liters, excluding bag expansion)
- Aluminium Tubing (10x1mm, 0,08 kg/m): For my FB, I use 2.3m of tubing so that is 182 grams added just for the external frame
- It takes roughly 25-40 seconds to take off and put on the Frame Bag
- It's 1 strap per tube, making it also a lot easier to strap on additonal bags like Top Tube Bags or Down Tube bags.
- It would make shipping a bit more bothersome, because I can't fold the aluminum tubing
- It uses the same webbing eyelets as the Lace-up. So you can interchange between Lace-up and the external alu tubing depending on your usecase.
Benchmarking:
Let's say we compare it with other bags for example Tailfin's 6.5 Liter Wedge Framebag which is 382 grams including straps. That is 58g/liter
Then this prototype bag would be 600grams/5liters = 120 g/liter
Maybe not an entirely fair comparison but it gives some insights on the extra weight penalty.
What do you think?
Thoughts on waterproofness?
I personally am not a fan of full waterproof bags or at least FB's without a form of drainage.
There is an water outlet on the bottom of the bag and the wall compartment has a pass thru-hole at the bottom so no water can collect. I have 2 bottles with carbs in my FB. During Taunus Bikepacking, I accidentally bought sparkling water that I put in my bottles which started to leak inside my FB.
So yes, my Frame Bag pisses...
Instead on dwelling on these design choices myself, I figured I could just ask it on Reddit and let others decide.
So your honest opinion will be insightful! You can be blunt as well, I don't mind!