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Steertubes

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Billy3197

Vital MTB member Billy3197
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Posts: 10

Joined: 11/20/2011

Location: Thiensville, WI USA

2/28/2012 4:44 PM

Is it possible to change a fork with a tapered steer tube to straight? as in- buy a tapered fork and put a different steer tube on it.

bturman

Vital MTB member bturman
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Posts: 1239

Joined: 8/1/2009

Location: On The Road, CO USA

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2/28/2012 10:20 PM

*Moved to the mechanics forum.

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NoahColorado

Vital MTB member NoahColorado
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Joined: 8/1/2009

Location: Fruita, CO USA

2/28/2012 10:34 PM
Edited Date/Time: 2/28/2012 10:35 PM

In short: no.

You'd also need a new crown and most manufacturers aren't keen on reusing your stanchions either. So you'd really need what's called a "CSU" - which is a fresh crown, steerer, and stanchions (uppers). That'll cost you at least $300 at retail - a costly endeavor.

However, it is possible on some frames to fit a tapered steerer in a head-tube originally designed for a straight steerer. If you're frame uses an 1-1/8" zero stack lower headset, there are conversion headsets now available from Cane Creek and others to externalize your headset and fit a tapered steerer. This only works on Zero Stack headsets with pressed-in cups, not the IS style where the bearing sits directly in the frame.

Big Bird

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3/3/2012 9:54 AM
Edited Date/Time: 3/3/2012 9:55 AM

It will void your warranty and possibly your life, but I have replaced two steertubes in forks. I used 7000 series aluminum and a healthy amount of press fit. One was on a Manitou Super Nova single crown. The other was a bit safer as it was on a Dorado triple clamp. Neither one has given me any problems. I don't recommend it, but it can be done.