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Hey guys...brand new to the forum and just looking for a little advice. Ive got an 06 Specialized Rockhopper sitting around that Ive been building up for the fun of it and looking to put a new Fox Fork on it. I just found out today that they have this headtube bottom Cane Creek 40 Series EC44/40 Bottom Cup > Components > Headsets and Spacers > Headsets | Jenson USA Online Bike Shop conversion to possibly run a tapered fork. Long story short aside from knowing i have a 1 1/8 threadless headtube, im not sure of the 44mm they require to run this setup. Is that the standard size bore in a 1 1/8 threadless headtube from back in 06? Any way for me to tell besides measuring with a calibrating tool when its all apart? Also will I still be able to get a new Fox fork with straight steerer tube for a while or are they kind of phasing these out? Thanks so much and appreciate any advice
 

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While there are headsets that accommodate a straight fork in a tapered tube frame, as far as I know, the opposite is not possible. It makes sense if you think about it. The link you included does not seem to allow this either -- is it the correct link?
 

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Hey guys...brand new to the forum and just looking for a little advice. Ive got an 06 Specialized Rockhopper sitting around that Ive been building up for the fun of it and looking to put a new Fox Fork on it. I just found out today that they have this headtube bottom Cane Creek 10 Series EC34 1 1/8" Headset > Components > Headsets and Spacers > Headsets | Jenson USA Online Bike Shop conversion to possibly run a tapered fork. Long story short aside from knowing i have a 1 1/8 threadless headtube, im not sure of the 44mm they require to run this setup. Is that the standard size bore in a 1 1/8 threadless headtube from back in 06? Any way for me to tell besides measuring with a calibrating tool when its all apart? Also will I still be able to get a new Fox fork with straight steerer tube for a while or are they kind of phasing these out? Thanks so much and appreciate any advice
Not possible.

ID for a straight 1-1/8" external cup head tube is 34mm, which is what your bike has.
Specialized Bicycle Components
 

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What's wrong with the fork that's on it? I'm only asking because the price of a new Fox fork is pretty insane these days and I can't imagine spending that kind of money on an '06 Rockhopper. Maybe you could buy a used one on Ebay and then have it freshened up with new seals and oil...

And of course, Shiggy is right as usual. You can't fit a tapered fork on a bike designed for a straight fork although the opposite is possible. A tapered fork has a 1 1/2 inch bearing on the bottom and that won't fit into a head tube meant for a 1 1/8 inch bearing.
 

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It is possible to fit the tapered steerer to an older frame that started out with a straight 1-1/8" steerer but the headtube diameter must be 44mm which, as shiggy points out, is not the case on the '06 Specialized.
 

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I hope you're kidding... With someone with that many MTBR posts, I would have thought you'd learned by now.
I love Fox forks. Firm lockout. Stiff forks, solid construction, good customer service, great aftermarket support.
I have also owned Rock Shox products. My Fox forks always out shined the RS forks.
 

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Well, 7 years later.. I'm hoping they've gotten a new bike ;)
 
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