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PostPosted: Fri Apr 14, 2017 9:03 am 
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Joined: Thu Aug 04, 2011 8:18 pm
Posts: 33
My Supersix EVO frame is 30.0mm in the seatpost clamp zone.
Is a 30.0mm clamp mandatory or will a 30.8mm be ok?

I'm asking because Tune makes a super light one but only in 30.8mm , and I've heard mixed thoughts about the compatibility.

Thanks!


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Posted: Fri Apr 14, 2017 9:03 am 


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PostPosted: Fri Jul 28, 2017 4:46 am 
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Joined: Fri Jul 28, 2017 12:34 am
Posts: 30
Have you measured the seat tube OD yourself, or just going on spec?
The risk you take with a slightly bigger clamp size is the seatpost slipping, especially with carbon ones.


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PostPosted: Fri Jul 28, 2017 7:01 am 
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Joined: Wed Jul 13, 2005 10:51 am
Posts: 1090
Location: Sydney, Australia
The other risk is the clamp cracking.

It seems the Evo is a 30.0 clamp, with a 25.4mm post, which seems like a PITA to me.
The only frames I've come across that use the 30.0 clamp are steel ones like the Surly Crosscheck I used to own. I put a Thomson clamp on that - not exactly a WW clamp though.

Luca79: Do you not have the factory clamp or are you just looking for a WW upgrade?

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