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Question about a new fork...

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Old 01-07-11, 06:46 PM
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Question about a new fork...

I am wanting to upgrade to a carbon fork on my 2009 Windsor clockwork road bike. I am confused on what size the new fork has to be? I'm looking at forks online and they have a 700c 50mm or like 45mm and I'm unsure what they mean with the mm measurement. Is that the tube diameter? Does anyone have any suggestions on forks?
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Old 01-07-11, 07:08 PM
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The steering tube diameter must match your old fork, either 1" or 1-1/8" so that's easy. If you have a threadless headset, just make sure the steerer is longer so you can cut it down. Thread forks must be sized closer.

Now for the 50 or 45mm dimension. That's probably the fork rake. Read this for an explanation. Try to match your original fork, but in most cases you won't notice a difference of 5mm.
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Old 01-07-11, 08:34 PM
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Originally Posted by FBinNY
The steering tube diameter must match your old fork, either 1" or 1-1/8" so that's easy. If you have a threadless headset, just make sure the steerer is longer so you can cut it down. Thread forks must be sized closer.

Now for the 50 or 45mm dimension. That's probably the fork rake. Read this for an explanation. Try to match your original fork, but in most cases you won't notice a difference of 5mm.
It's a 1 1/8 fork.
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