Bicycle Tubing ...

[Newdiv]

From a standard mountain bike tire. Go to a bike shop and ask if they have one in the garbage from a repair.

 

[inquis]

If new, a MTB tire listed as 2.35" or 2.4" as the upper end of the range. You might need to fold the webbing like a taco as you go to easily slide the band longer distances. The next size up (for so called "plus" tires) is much larger.

 

[Kupu]

I bought a cheap 2.00-2.40" inner tube from ebay, works perfect

 

[Ulfhedinn]

https://smile.amazon.com/gp/product/B000AAYBHI/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1

26"x1.75-2.25"

or the local bike shop and ask for one that is going to be thrown away.

 

[Bigbella]

Inner tube doesn’t last. EDPM bands cost a little but they don’t degrade and break like inner tube does.

I made some ballasts for a FFM from sections of inner tube; lead shot; and cinched with cable ties, back in 2000.

They are still in use . . .

 

[Zef]

I made some ballasts for a FFM from sections of inner tube; lead shot; and cinched with cable ties, back in 2000.

They are still in use . . .

Oooh!
I have a set of ankle weights with lead shot in them and one is in disrepair where towards then end causing the shot to come out. I am going to use your idea above to effect a repair of it. I sometimes use these when diving with new divers that may need extra weight once we are in the water as I can use the quick release buckles to quickly attach them to a weight belt, waist strap or other area.

-Z

 

[PfcAJ]

I made some ballasts for a FFM from sections of inner tube; lead shot; and cinched with cable ties, back in 2000.

They are still in use . . .

Are those bands repeatedly stretched like what happens when you remove and replace a backup light?

 

[Bigbella]

Are those bands repeatedly stretched like what happens when you remove and replace a backup light?

No . . .

 

[Nemrod]

EDPM rubber bands for example:

https://www.amazon.com/Ranger-Bands...ords=epdm+rubber+bands&qid=1630677538&sr=8-14

The cheaper MTB/ATB tubes in the 2.25 size work well. They tend to be thicker than quality performance tubes. They last a long, long time but it is also a PITA to undo the webbing to get to the shoulder straps to replace them, I usually load some extras on to account for breakage, not sure if that is against the rule book:

https://www.amazon.com/Bell-STANDAR...ocphy=9024228&hvtargid=pla-383625493664&psc=1

I am a cyclist so I tend to have plenty of bicycle tubes about. Though not the cheapo tubes and most of my bicycles are racers with 23mm tires. For example, these will not work:

But they are the right diameter to pull over a braided single hose regulator hose so that it does not saw into your wing but that is against the rules I imagine.

James