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Inserts squeak when climbing

July 3, 2024, 7:47 p.m.
Posts: 908
Joined: Jan. 2, 2018

Just did my first ride on a set of Rimpact pros. 

I like the feel, but the rear is squeaky as shit when climbing. Very distinct rubber-on-rubber rubbing sound. 

Is this normal? Does it go away on its own? More sealant? Earplugs? Shoot myself?

Any thoughts or experiences?

July 4, 2024, 7:13 a.m.
Posts: 2633
Joined: April 25, 2003

probably needs lube, give it a hawk tuah.

July 4, 2024, 10:23 a.m.
Posts: 1173
Joined: March 15, 2013

My first lazy thought would be to just give it a couple more rides to see if some sealant sneaks in between the squeaky bits and helps it quiet down.

July 4, 2024, 1:42 p.m.
Posts: 908
Joined: Jan. 2, 2018

Maybe. The other annoyance is I have reserve Fillmore valves, which reportedly usually work with inserts, but not these. They don't let out air well at all, the flat bottom of the insert and tight fit means even the Fillmore poppet can't push the insert away very effectively. Lots of stories on the net of people carving out a little pocket for the valve to live. 

Kinda leaves me wishing I'd paid more for cushcore trail. 

Since they have to come apart anyways to fix the valve issue I'll put a cushcore trail in the rear and hopefully fix both issues. Then carve a pocket out on the front and leave rimpact in there, and keep the rear as a spare.

Annoying but that's what you get when you cheap out I guess. Should have gone straight to cushcore.

July 18, 2024, 8:43 a.m.
Posts: 90
Joined: Nov. 23, 2002

I've heard only good things about Vittoria's Airliner, easier to install, much lighter and also cheaper than the Cushcores.

July 19, 2024, 8:19 a.m.
Posts: 1095
Joined: Jan. 31, 2005

I tried a bunch on the non-CC-Pro options and they weren't great. Tannus were light and easy to install and rode ok but absolutely do not run flat if you're over 200lbs. Octamousse were also light and easy and relatively cheap; ran pretty well and could run flat but they distorted inside the tire - they expanded like a pool noodle and couldn't be reused since they doubled in diameter and gained 6" in overall length. Octamousse with Stan's sealant are basically single use so basically they're junk. Now I'm on CushCore Trail and they seem a good compromise. They ride the best of them all, are marginally heavier and should handle reuse better than the others. If these had been available when I bought the Octamousse I would have got that route. Buy once and cry once.

July 19, 2024, 11:19 a.m.
Posts: 908
Joined: Jan. 2, 2018

Absolutely. I bought a cushcore trail a day or two after I posted this and it's great. 

I'll use the rimpacts for the front wheel until they both wear out and then put cushcore trail in the front as well.

July 19, 2024, 4:59 p.m.
Posts: 453
Joined: March 14, 2017

I've been on inserts for awhile now, I think it's better if you can get a heavier casing tire than having to deal with them.  Providing you can get the right compounds.  For some reason manufacturers don't like to supply DH tires that aren't MaxxGrip or T9, etc.

July 19, 2024, 7:35 p.m.
Posts: 698
Joined: May 11, 2022

Posted by: craw

I tried a bunch on the non-CC-Pro options and they weren't great. Tannus were light and easy to install and rode ok but absolutely do not run flat if you're over 200lbs. Octamousse were also light and easy and relatively cheap; ran pretty well and could run flat but they distorted inside the tire - they expanded like a pool noodle and couldn't be reused since they doubled in diameter and gained 6" in overall length. Octamousse with Stan's sealant are basically single use so basically they're junk. Now I'm on CushCore Trail and they seem a good compromise. They ride the best of them all, are marginally heavier and should handle reuse better than the others. If these had been available when I bought the Octamousse I would have got that route. Buy once and cry once.

How easy is the install of the cc trail?  I’ve been considering the tannus quite strongly but could be swayed if install is considerably easier than the pro

July 20, 2024, 3:38 a.m.
Posts: 908
Joined: Jan. 2, 2018

Posted by: LoamtoHome

I've been on inserts for awhile now, I think it's better if you can get a heavier casing tire than having to deal with them.  Providing you can get the right compounds.  For some reason manufacturers don't like to supply DH tires that aren't MaxxGrip or T9, etc.

It's interesting how the use case for jnserts has evolved a little. 

Not a lot of DH/Enduro racers use them currently, but almost all XC riders are using them, despite the fact that they began more as a product geared towards "gravity" riding. 

It's almost the opposite now use now. Lighter casing, lower pressure, and an insert works way better than a heavy casing tire with respect to rolling resistance, and on a shorter travel bike especially, ride quality and traction is better.

On a 160 travel bike sure, I'll just run heavy casings, but on my tallboy, inserts with super trail schwalbe gives me a mix of rolling speed, traction, and comfort that I could never achieve with super gravity casing and no inserts. It's way better with the only downside being more potential for punctures, but it's not like I get flats left right and centre. 

So I'd say for winch and plummet "Enduro" or park bikes, simple DH casing is fine. 

The more you move towards "trail" the more the other benefits of inserts start to shine. The top level xc people running them speaks volumes in this regard. 

Posted by: BC_Nuggets

How easy is the install of the cc trail?  I’ve been considering the tannus quite strongly but could be swayed if install is considerably easier than the pro

I've run tannus as well briefly. Install difficulty is about the same - pretty easy. 

I installed the CC trail by hand no tire lever. 

Tannus provides really good lateral support with low pressure, maybe better than CC trail. CC trail provided more damping though. 

I've had rimpact, tannus, nukeproof ard, and CC trail. CC feels like a "premium" product. I really like how the profile sits in the rim bead.

July 22, 2024, 9:54 a.m.
Posts: 1095
Joined: Jan. 31, 2005

Posted by: BC_Nuggets

Posted by: craw

I tried a bunch on the non-CC-Pro options and they weren't great. Tannus were light and easy to install and rode ok but absolutely do not run flat if you're over 200lbs. Octamousse were also light and easy and relatively cheap; ran pretty well and could run flat but they distorted inside the tire - they expanded like a pool noodle and couldn't be reused since they doubled in diameter and gained 6" in overall length. Octamousse with Stan's sealant are basically single use so basically they're junk. Now I'm on CushCore Trail and they seem a good compromise. They ride the best of them all, are marginally heavier and should handle reuse better than the others. If these had been available when I bought the Octamousse I would have got that route. Buy once and cry once.

How easy is the install of the cc trail?  I’ve been considering the tannus quite strongly but could be swayed if install is considerably easier than the pro

CC Trail is definitely easier to install than Pro. You still need the buttplug tool and the same techniques though. CC Trail is a good compromise for me. All the lighter options give up too much.

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