• I agree with everyone recommending reaming and facing the headtube before first assembly - you may be lucky and it happens to all sit square, but even the manufacturer recommends it which implies they don't do it even before adding the paint. It can make all the difference to handling and life of the headset, even to the point of invalidating the CK warranty as mentioned above. That said, I would normally be happy to do this for forumongers for a couple of beers, but sadly I only own the tool for 1" headtubes - they are really expensive and I don't deal with more than a handful of 1&1/8" frames a year. Remember that from a bike shop's point of view, the cost of doing jobs like this also reflects the cost of owning and replacing the expensive tools - they don't last forever if you use them! I also recommend chasing the BB threads and possibly reaming the seat tube, these I can do.
    Cheers H

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