Bicycle Mechanics - Update: Ofmega sealed bearing headset - how to install it???
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Well, it took a long time but I finally got it done - it didn't end up being too hard. First I put the fork in the freezer for a couple hours, heated the lower race a little bit and it was easy to tap the bearing into place. The upper part had access to the bearing race so I could press it in using the normal method.167988
Next the fork went back in the freezer, warmed up the head tube, and pressed the lower bearing in by using a spacer around the fork tube and pulling from the bottom of the fork tube.
Thanks again to all for the great advice back when I started trying to figure this out!
04-09-13, 11:24 PM
Hi! I know this is an old thread, but any additional info to add? I have a NOS Ofmega CX headset (in Red) that I am interested in installling on a 1981 Bianchi Campione D'Italia that I am restoring (modding slightly). It came with a Campy GS headset, but I had this set that I thought would be great on this bike. Thanks in advance!
04-10-13, 04:29 PM
The Ofmega CX has a 40mm stack height, while the Campy Gran Sport is only 33mm. Unless you have ~7mm worth of washers installed with the Campy headset, chances are your steer tube is too short for the CX.
04-10-13, 08:27 PM
Thank you for that info, I'll check my setup, what is the stack height for NR headsets?
04-11-13, 01:25 PM
The Nuovo Record stack height is 39mm, so not much better. The Tange "Levin" is an decent, affordable unit with a 33mm stack, and there are others that would work as well:
That CX unit ought to fetch a decent price if you need funds.
All I have to add is, this headset has worked fine since I installed it. Regarding the height, I don't know what was originally on my bike, I just had the frame and fork, and the CX fit. Regarding installation, I don't know if the heat/cool process is really necessary, but doing it that way, everything went together quite easily without a lot of stress on the parts. (By heat, I just mean a towel with hot water, not a torch or anything like that). Good luck with your project!
04-17-13, 07:50 PM
Thanks all, the Gran Sport is 33.8 and the CX is 39mm , I have decided to keep looking for a Pista Super Record Headset, and have put the CX up on Ebay. Anyone interested in it, shoot me a fair price and I'll kill the auction. I really wanted to use it on the CDI, but it won't work.
04-17-13, 08:48 PM
Thanks all, the Gran Sport is 33.8 and the CX is 39mm , I have decided to keep looking for a Pista Super Record Headset, and have put the CX up on Ebay.
Is there a problem with the Gran Sport headset that you feel warrants its replacement? If not, why not just keep the Gran Sport; it's a fine headset with no real functional difference from the Super Record Pista (and which is likely to cost you an arm and a leg).
04-17-13, 09:00 PM
the GS headset will be fine, just thought about doing something different.
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