27.5 Forks on 26 Fr...
 

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[Closed] 27.5 Forks on 26 Frame

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Thinking of upgrading forks onmy Cotic Rocket 26 from 150mm revs to 160mm Lyrics.
If I try to future proof a little by going 27.5 will this lower the bb even more than just with the extra fork length?


 
Posted : 15/09/2017 7:44 am
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You're Axle to Crown height is going to increase by at least 40mm, possibly upto 70mm) as the Lyricks, for a similar travel, have a longer A2C. Moving to a 650b will add around 20mm A2C on it's own. You're likely to [u]raise[/u] your BB height by 20-30mm.


 
Posted : 15/09/2017 7:53 am
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Surely if you go longer and 27.7 you'll be raising the BB and slackening the head angle?

I run 160mm forks on my 26" Rocket and they're fine; I reckon the extra height from the 27.5 forks won't make too much difference over that.

**edit** also, what he said.


 
Posted : 15/09/2017 7:55 am
 core
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Longer forks will raise your bottom bracket.


 
Posted : 15/09/2017 7:55 am
 poah
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no issues with mine

[img] [/img]


 
Posted : 15/09/2017 7:56 am
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I've got some brand new Lyrik R 26 forks you can have for £250 posted.

See classifieds if interested.


 
Posted : 15/09/2017 7:57 am
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Whats the offset on the new lyriks?


 
Posted : 15/09/2017 8:36 am
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As others have pointed out, fitting longer forks will lift your bottom bracket. I don't know how feasible it is to fit an offset bushing to compensate, but even then you may end up with a taller BB than you started out with.


 
Posted : 15/09/2017 8:40 am
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i run 27.5 forks on my 26" bike.

works fine.


 
Posted : 15/09/2017 8:42 am
 poah
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makes very little difference


 
Posted : 15/09/2017 8:42 am
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When I looked (Pikes rather than Lyriks though) going from 26 to 27.5 only changed A-C by 10mm i.e A-C on a 140mm 27.5 Pike was the same as on a 150mm 26" fork.


 
Posted : 15/09/2017 9:17 am
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I meant raise!! 🙂
Thanks for the responses so far.


 
Posted : 15/09/2017 10:17 am
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@chilled76, we have pm'd re your forks already. I was after mission control damper unfortunately.


 
Posted : 15/09/2017 10:23 am