been there, done that. we move to the future, not the past.
the weight isn't much more than a DH tube. Gwin seems to think they're worth the weight penalty for the performance (and not smashing rims) and the extra security on not flatting (which will end a race run pretty quick)
fair point, but there are other items out there that were once decried as unnecessary extra weight; dropper posts, suspension, disc brakes
he's finished race runs after flatting / losing a tire, but didn't win. you're probably thinking of his chainless win.
I think you're talking about last year's WC run. He did not finish that one.
To add to drawbacks - cost, prone to rotting if they sit for more than a month, doesn't simulate a very low psi unless you drill holes in it,
As was point out, heavy duty tubes or the tubeliss (basically moto procore) are both used.
correct. closed cell.
staple it together...
I was thinking more wrinkles/creases.
Give it a shot, report back.
Why not go to grainger? You can get thick walled pipe insulation which is closed cell and is unslit.OK- got some stuff to report... The lowes foam pipe insulation seems to be closed cell and is cheap. $1.19. We also had a Huck Norris laying around- the HN is significantly stiffer, but pretty thin. I put 2 layers of the pipe insulation in my wheels for now, going to test over the next few weeks.
2Oz for 2 layers around the rim
Also came up with this- PEX pipe with foam underneath. Seems like it will cushion (the PEX is flexier than PVC and hopefully won't shatter) and keep the tire away from the sharp aluminum edges of the rim. It's very heavy though and I haven't tried mounting a tire.
14Oz for 1 wheel
$20 for everything so far
also, EPDM is the type of foam used...
You should be able to buty an EPDM seal strip like in the pic. below. Guessing by the claimed weight and possible dimensions it should have density around 100kg/m3. Epdm foams like this usually have hardness around 50 shore00. In here 20m long, 40mm dia. strip is around 100usd, but maybe You can get some shorter ones in the US.
My, what lovely hands you have @troy!You should be able to buty an EPDM seal strip like in the pic. below. Guessing by the claimed weight and possible dimensions it should have density around 100kg/m3. Epdm foams like this usually have hardness around 50 shore00. In here 20m long, 40mm dia. strip is around 100usd, but maybe You can get some shorter ones in the US.
Or you could use more than 18psi?
Even at 30psi the rear tire wants to fold over under hard cornering, which made for some burps, I generally run 35psi in the rear, 30 front, using maxxis HR2's. I don't think I've ever run 18psi in my life. Even my DH bike had 28/24psi with DH tires.
