Weird wheel set up ...
 

[Closed] Weird wheel set up idea- will I die?

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Ok so bare with me on this one..

Got an on one whippet and I currently have a rigid carbon (exotic) fork on it that replaced a rockshox sid. It's currently running mavic crossmax sl 26 wheels.

I've read and seen a few people put 650b wheels in these frames and really rated them.

I'm considering puting a 650b wheel on the rear with an xc type race tyre prob a 2.25 ralph. Then on the front as I've got the rigid fork a 650b+ tyre to act like a little bit of suspension.

Q1) any Weird cornering characteristics likely to occur (standard stw will I die question)?

Q2) can anyone recommend a light wheel set that will be ok with a 2.25 ralph and give a decent profile but still wide enough to run a 2.8 out front? Would like to avoid mismatching rims if possible.

Cheers for inputs in advance


 
Posted : 27/04/2017 6:10 am
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I had a quick spin on that bike, it feels fast. Very fast.

Around an XC course the tyre combo worked well and I didn't even give those weird forks a thought, they just worked. Sort of surprised me how good it all felt.

The problem you may encounter is that you are raising the BB


 
Posted : 27/04/2017 7:32 am
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Cant open the link ๐Ÿ™


 
Posted : 27/04/2017 8:15 am
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Sorry, probably a closed group or something. It's a Travers RussTi frame with 35mm Nextie rims and a 2.25 Thunder Burt on the rear but a 2.6 Rocket Ron on the front. Not very suitable for rocky terrain I'd guess but worked a treat for an XC race bike.


 
Posted : 27/04/2017 8:30 am
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How about going 26+ front with the 27.5 rear. That way you minimise the bb height change and roughly keep the same HA.


 
Posted : 27/04/2017 8:31 am
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Shirley it would be odd having softer tyre and more grip up front?


 
Posted : 27/04/2017 8:59 am
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Is that any more odd than having only front suspension? Tractors and dragsters tend to prioritise rear grip over steering but they have specific reasons


 
Posted : 27/04/2017 9:05 am
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Would love to be able to see that Traver Trus ti. Can anyone scrren grab it?


 
Posted : 27/04/2017 9:35 am
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Rubber_Buccaneer - Member

Is that any more odd than having only front suspension?

The levels of grip will be different.


 
Posted : 27/04/2017 10:00 am
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Generally people run a grippier tyre on the front though don't they.

For example on my big bike I run a magic Mary up front and I'm now on a Rock Razor on the rear.

Suspension increases grip too and I've ditched the sus fork.

Question is I guess... how different?


 
Posted : 27/04/2017 10:05 am
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The levels of grip will be different.

Like chilled76 says it's not uncommon for people to put a big soft compound tyre up front and a harder compound faster rolling tyre on the rear. It looks a bit strange but felt fine, in fact rather good, around an XC course.

Since no one can see the link I should probably mention the forks are the Lauf leaf spring suspension forks. It's a different discussion but I thought they would be a horrible pogo stick affair. In reality I didn't really notice them, they just did their job. I need to keep stressing though that my little demo ride was around an XC race course.


 
Posted : 27/04/2017 10:29 am
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Yeh this bike never gets used for big terrain, I've got a trail bike I take if I go peak district/lakes etc.

This one is more for local woods etc. Fast xc type riding


 
Posted : 27/04/2017 10:51 am
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I have an inbred with a 26 rear and 27x2.8 front, rides fine. Used to run it as a 69er but this is better as more cush and the diameter of the 27.5x2.8 is quite a bit less than a 29x2.4 so steering is better.

Every off road bike I have had for the last 20 years atleast has had a bigger more aggressive tyre up front, including my CX.


 
Posted : 28/04/2017 10:18 am