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Can't believe that anyone would suggest you cut through a crown bearing race.
FWIW, I reckon it's likely to be a mismatch between the chamfer on the inner diameter of the headset and the radius on the fork.
Running a dremel round the headset to increase the size of the chamfer may be an option. It's something we have problems with in other industries. You can make nice sharp precise corners in metal (and it's cheap to do) carbon and plastic prefers nice rounded corners,which means occasionally the metal bits don't seat properly.
You must make sure that the two locating faces are undamaged tho.
jooo wrote:Valbrona wrote:Can't believe that anyone would suggest you cut through a crown bearing race.
You realise that split crown races come as a standard part for a lot of headsets right?
+1. And also +1 to the "it's not a bearing race". You realise that the bearings don't actually roll on the crown race Valbrona? We aren't talking about loose ball headsets.
There's nothing remotely unsafe or unusual about a split crown race. Any future carbon bikes I build myself will have one, and I will split them myself if they don't come pre-split.
They had the same issue as previous shop, could not get it on completely snug even with a good whack.
They lightly used a bit of wet/dry paper and it now sits pretty close to the fork crown, maybe a mm above at max. They said that without a proper facing tool for the diameter of this fork it wont sit completely flush with the fork crown.
So Im just going to leave it at that - the race is sitting pretty close to fork crown, max 1mm gap is equal all the way around and there is no issue with steering etc.
Thanks for the help nonetheless!
I still think the chamfer is too large, maybe 2mm radius, and you've got a 1mm chamfer.
But without a picture, can't confirm.
And if there is a gap, you'll eventually damage either the fork or the head set. Or both.
This is the crown race I need I presume... http://www.reveloutdoors.co.uk/Cannondale-CAAD10,-Supersix-EVO-Crown-Race,-KP156/accessorydetail/3-39953
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