26 frame but 27.5 f...
 

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[Closed] 26 frame but 27.5 forks and wheels???

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Posts: 186
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Good morning

So...... I have a 2010 Sanderson Blitz frame that's got a dent ,well passed warranty and in all honesty like me has seen better days
Whilst bored I fitted some X-Fusion Streat 140mm 27.5 forks (same axle to crown as 26 150mm Sektors I was currently running on it)
I also found the frame would take a 27.5 wheel so my question is .....
Am I adding undue stress on the frame therefore resulting in me being a horrific fireball where I end up sitting in the devil's lap or should I be overjoyed with this result!?
Thanks


 
Posted : 14/12/2021 10:37 am
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Running a wheel an inch bigger will add undue stress? What is your thinking to bring about that question?


 
Posted : 14/12/2021 11:25 am
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Assuming enough tyre clearance on the frame, it will be fine.

People forget "27.5" is actually less than 5% bigger than "26"


 
Posted : 14/12/2021 11:26 am
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I’m completely unqualified to have a qualitative opinion, but sounds like a result to me!


 
Posted : 14/12/2021 11:27 am
 K
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You'll be fine if you have tyre clearance.

The BB will be a little higher but nothing to worry about.


 
Posted : 14/12/2021 11:28 am
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You'll be fine.
Thinner tyre maybe but go for it


 
Posted : 14/12/2021 11:29 am
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Am I adding undue stress on the frame

No. Putting DH forks on an XC frame and riding it like a DH bike will break it, but that's just because you're riding it like a DH bike. If you ride the bike as it was intended to be ridden, you'll be fine.


 
Posted : 14/12/2021 11:59 am
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Should be fine. You could always run it as a mullet setup (26" rear with 27.5 up front) if tyre clearance is an issue.


 
Posted : 14/12/2021 12:01 pm
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same axle to crown as 26 150mm Sektors I was currently running on it

The only way you can apply a force to the headtube via the wheel is a load from the axle. Your load is therefore the same with the same A-2-C length.

Caveats of using the fork normally - if you landed a drop with the wheels turned 90 degrees, or with the brake locked on this statement becomes untrue, but you are going to have bigger and more painful problems at that point.

The extra height of the bottom half of the wheel will have slackened your headtube angle slightly, again raising the theoretical force if you were to do a zero mph drop to flat, but in reality, minimal practical change.


 
Posted : 14/12/2021 12:12 pm
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Thank you all , 27.5 wheels it is then


 
Posted : 14/12/2021 4:32 pm
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NO don’t do it - you will explode.


 
Posted : 14/12/2021 6:38 pm
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I ran a 27.5 inch Pike on a 26 inch frame with same c-to-a height, but with 26 inch wheels. Worked perfectly and loads more mud clearance at the front!! 🙂


 
Posted : 15/12/2021 12:13 pm
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Ran a 26 On-One 456 Carbon Evo with 27.5 wheels for about four years.

Still alive.


 
Posted : 15/12/2021 6:57 pm

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