daneil

I'm going to be swapping out my Profile Stiffy for a 3TTT Forgie on my bike and I had a question. I've never done this procedure on a full carbon fork (Easton EC90) and I wanted to be sure about the procedure first. Also, I couldn't find any specs on Easton's new website and I was wondering if this fork had a sleve near the top of the steerer? Thanks.

sydney

And, what does a 'sleeve' got to do with whatever it is you are asking?? Besides, since you are removing the topcap,why don't you just look?

daneil

Well lets see. Some models of carbon steerer forks have alloy sleeves inserted into the carbon so that the steerer clamp won't crush the carbon. As I stated in the original post I've never done this on a carbon steerer before and I was just looking for a little guidance to make sure I don't f up my fork.

sydney

The compression bung serves the same purpose. If you are so hamsifsted as to be worrying about crushing CF,maybe you should let LBS handle it.

daneil

Man what is your problem. And by the way it's hamfisted. And no I'm not. I really can't believe that this is the best help that this board could give. All I wanted was a break-down for how to replace a stem on a CF steerer.

Teach me for asking.

sydney

Well, I pull the topcap,loosen stem bolts, remove stem, put on new stem, make sure top of steerer is proper distance below top of stem for proper topcap clearance, install topcap and preload bearings,then tighten stem. Viola'...No rocket science involved. Don't like my answer, try the repair section at www.parktool.com

dmw010

I recently installed a full carbon fork on my bike with a Ritchey WCS stem. I discovered that Ritchey recommends a lower torque for tightening the stem bolts on a carbon steerer than on an alloy steerer. You should see if you can find the proper torque numbers for the 3TTT Forgie stem bolts. As an example, here is what Ritchey says for my stem:

Torque specs and bolt pattern for WCS stems:

1) Torque specs:

WCS stem front faceplate with 4mm bolts
- 30-60kgfcm for alloy bars 26-52 inch/lbs
- 40kgfcm max for carbon bars 35 inch/lbs

WCS stem steerer clamp with 5mm bolts
- 60-100kgfcm for alloy steerers 52-86 inch/lbs
- 90kgfcm max for carbon steerers 78 inch/lbs


Also, my fork came with a special preload gizmo that does not scrape up the inside of the carbon steerer like a star-fangled nut would.

By the way, the Forgie is a pretty heavy stem; that's what I had before I got the Ritchey WCS, but I didn't have a full carbon fork then

Hope this helps,

David

sydney

Gosh dang. How have I managed to install stems without a trouque wrench?

daneil

Thanks for the info. I appreciate it. Yeah the Forgie is heavy (175g), but it's also lighter than that Stiffy (250g). Also I needed the extra reach and drop of the Forgie and I got it for $15 on ebay.

daneil

Now was that so hard.

Now just remove the load of attitude and that would have been the perfect post.