Enduro/gravity bike suspension and geo

[Headshot]

The ding I did on Sunday was very much on the side of the side of the tyre/rim - hence no damage to the tyre, rim not so much

A quick Google revealed that the Mastering MTB Skills author agrees that "wider rims might lead to more rim dings because the outer edge of the rim is closer to the outside of the tyre" or something like that, so I'm sticking to my theory...

[Jewbacca]

Do you also not go faster on the dual suss than on the HT?

 

I say this as I tend to be less floaty on the pedals and way more direct on the Jeffsy than I am on the HT.

 

So maybe not that much faster, but I don't temper my speeds approaching rock gardens etc because I know the bike will just plow through it.

 

I'm not a fan of running 1.5kg of rotational mass if I don't have to.

[Hairy]

A quick Google revealed that the Mastering MTB Skills author agrees that "wider rims might lead to more rim dings because the outer edge of the rim is closer to the outside of the tyre" or something like that, so I'm sticking to my theory...

I think only in your later post did you make it clear it was the side of the rim ... I was under the impression it was a impact from the top of the rim

[Hairy]

Do you also not go faster on the dual suss than on the HT?

 

I say this as I tend to be less floaty on the pedals and way more direct on the Jeffsy than I am on the HT.

 

So maybe not that much faster, but I don't temper my speeds approaching rock gardens etc because I know the bike will just plow through it.

 

I'm not a fan of running 1.5kg of rotational mass if I don't have to.

Your argument holds no water, you are on a YT and he is on a Spaz, it is obvious your bike will handle better and come out unscathed on the other end of a rock garden.

[Duane_Bosch]

Your argument holds no water, you are on a YT and he is on a Spaz, it is obvious your bike will handle better and come out unscathed on the other end of a rock garden.

When he talks rock gardens he doesn't mean the bits of loose stone where the city have done a half job of repairing the road that one finds on the cycle path to town.

[Hairy]

When he talks rock gardens he doesn't mean the bits of loose stone where the city have done a half job of repairing the road that one finds on the cycle path to town.

Like Duh ..... chop

[Jehosefat]

The ding I did on Sunday was very much on the side of the side of the tyre/rim - hence no damage to the tyre, rim not so much

 

If it really was from the side then its very unlikely that any amount of foam inserts or tougher casing tyres would have saved the rim unfortunately. Because you were asking about those I assumed you were talking about a straight-on impact rather than a side-on impact. In that particular case a narrower rim might have been a bit better but it would have been marginal at best because the tyres also have a bit more lateral flexibility on narrower rims.

[Headshot]

I think only in your later post did you make it clear it was the side of the rim ... I was under the impression it was a impact from the top of the rim

 

Well who really knows, but the fact that the tyre did not get damaged at all is a clue. 

[Headshot]

If it really was from the side then its very unlikely that any amount of foam inserts or tougher casing tyres would have saved the rim unfortunately. Because you were asking about those I assumed you were talking about a straight-on impact rather than a side-on impact. In that particular case a narrower rim might have been a bit better but it would have been marginal at best because the tyres also have a bit more lateral flexibility on narrower rims.

 

Are you guys being difficult on purpose,.. The damage to the rim was a classic ugly ding in the edge of the rim where the bead of the tyre sits.  The quoted text refers to damage to the edge of the rim. Where do you guys damage your rims? At the spoke holes? I mean....

[Jehosefat]

I'm just pointing out that narrower rims might be less resistant to dings in very specific circumstances whereas wider (to a point) rims are more resistant to dings in almost every other situation (assuming other things are equal like same tyres/casing etc.).

 

We are not being difficult, we are just pointing out the flaws in your "narrower rims are better for avoiding dings" comment. 

[Hairy]

Are you guys being difficult on purpose,.. The damage to the rim was a classic ugly ding in the edge of the rim where the bead of the tyre sits.  The quoted text refers to damage to the edge of the rim. Where do you guys damage your rims? At the spoke holes? I mean....

This is one of those instances where a picture = 1000 words.

[usxorf]

Maybe you need more psi for your, er, bodyweight. I run 35psi and rim dingalings are few and far between. 2.4 dhr on 35mm internal rim, for science.

[Hairy]

Maybe you need more psi for your, er, bodyweight. I run 35psi and rim dingalings are few and far between. 2.4 dhr on 35mm internal rim, for science.

[Bos]

I'm just pointing out that narrower rims might be less resistant to dings in very specific circumstances whereas wider (to a point) rims are more resistant to dings in almost every other situation (assuming other things are equal like same tyres/casing etc.).

 

We are not being difficult, we are just pointing out the flaws in your "narrower rims are better for avoiding dings" comment. 

 

Yes.. You dont want to go back..

 

You are quick to forget how your 2.5WT will roll off the rim in berms, or the rim will need trueing after every ride. 30mm ID rims dont look so wide on a 2.4 tyre anyway. Since I've been running 30mm ID rims I have hardly had to true a rim, but I dinged my rim so bad without even noticing that I could not get the tire off the rim! It literally pinched it and I had to pry the bead open to get it to release.

 

Tyres and rims cost about the same these days. My new bike will just have RAPIDE TR30 rims, which are for argument sake, trail wheels, but there was very little difference to the Spanks I upgraded to.

 

If I have to replace a R900 back rim once every 1.5 years. I can probably live with it. 

[Meezo]

Maybe you need more psi for your, er, bodyweight. I run 35psi and rim dingalings are few and far between. 2.4 dhr on 35mm internal rim, for science.

You run.

 

Haha funny that

[Meezo]

Yes.. You dont want to go back..

 

You are quick to forget how your 2.5WT will roll off the rim in berms, or the rim will need trueing after every ride. 30mm ID rims dont look so wide on a 2.4 tyre anyway. Since I've been running 30mm ID rims I have hardly had to true a rim, but I dinged my rim so bad without even noticing that I could not get the tire off the rim! It literally pinched it and I had to pry the bead open to get it to release.

 

Tyres and rims cost about the same these days. My new bike will just have RAPIDE TR30 rims, which are for argument sake, trail wheels, but there was very little difference to the Spanks I upgraded to.

 

If I have to replace a R900 back rim once every 1.5 years. I can probably live with it.

Yep I'm on a rim a year, and actually accept it. There's foam inserts there's dh skin tyres there's rattle my spine pressures and then there's trail stoke and bad luck. The last is me

 

 

 

 

 

 

 

 

.... At least that's what o tell myself