I want to add a port for a hydration bladder tube to my bike's frame bag. Is it possible to buy a sew-on port from anywhere?



Cheers, Michael.

I've never seen such a thing but fabbing something from a piece of Hypalon shouldn't be too difficult ... reckon I'd start by cutting a small cross in the centre of a piece and passing the tube through the resulting 'cat's bum'

Bearbonesnorm wrote: ↑Tue Sep 21, 2021 7:46 pm I've never seen such a thing but fabbing something from a piece of Hypalon shouldn't be too difficult ... reckon I'd start by cutting a small cross in the centre of a piece and passing the tube through the resulting 'cat's bum'

I suspected that I might have to down that route, but was hoping that there would be something available commercially that's a bit neater.

Could you perhaps cut one from an old bag? Plenty of cheap rucksacks and things have them fitted.

I would just sew two pieces of lmaterial of your choice] together with an overlap to create a horizontal slot with a baffle. Hard to explain but simple to do. Like this bit on my frame bag (where it's actually the whole front panel that's like this, but you could easily make a small panel to sew into an existing bag):
P8140459 by Dave W, on Flickr

Bearbonesnorm wrote: ↑Wed Sep 22, 2021 8:18 am Could you perhaps cut one from an old bag? Plenty of cheap rucksacks and things have them fitted.

I can send you some but.... how about bonding some inner tube or side wall on the outside with rubber cement? tiny hole punch each end of line you cut & centre of 'X'.
I have some Hypalon but it's awkward to sew. drags thread and is tough to punch needle through. . you need to use waxed/ lubed (silicone polish spray - pledge) thread & an oversized needle... size19/110 etc
also a patch over the port either inside or out to prevent water running in...
just my tw'pennth..
now do you cut a line an 'X' or a 'Y' to self....

Thanks everyone, looks like I'll be using a piece of innertube.

Cheers, Michael.

Bearbonesnorm wrote: ↑Tue Sep 21, 2021 7:46 pm 'cat's bum'

I was thinking tea towel holder, now I can’t get rid of the image

Mart wrote: ↑Tue Oct 05, 2021 7:25 pm

Bearbonesnorm wrote: ↑Tue Sep 21, 2021 7:46 pm 'cat's bum'

I was thinking tea towel holder, now I can’t get rid of the image

save an inner tube and use Road-Kill.
It's all Stu's fault for putting tht image and idea in my head.
I'll have to wash it away with a strong beer..

Reduce, Re-use then Cycles

jimbobcraig wrote: ↑Mon Dec 13, 2021 2:47 pm https://www.extremtextil.de/en/outlet-elastomer.html

Thanks very much, that's exactly what I was thinking of

Unfortunately they won't ship to Blighty. Thanks very much Brexit, you're the gift that keeps on giving