- Mixing crown races & headsets – OK or a no -no?
My only concern would be that even if the difference on size is 1 or 2 mm or it is a slightly different shape it could result in excessive wear on the headset. For all it takes to change it I would just do it. Probably took you more time to write this post than it would have for you to change it.Posted 8 years ago
Hmmm. As confused as ever.
Motivation is idleness, and not wanting to have to get the CK race off and the CC one on as neither are split race designs.
Probably right that I should use the right race – I suppose the question should have been more about how you could assess properly whether they are interchangeable. Anyone any idea where the detailed tech specs would be? Like precise details of crown race dimensions, angles and so on?Posted 8 years ago
I’ve got a nice new Cane Creek 110 here and, armed with a selection of hammers, blocks of wood and malicious intent I’m about to fit it with the necessary precision.
Looking at the crown race, it looks like a CK crown race will be a perfect match – the CC has a rubber lip, but otherwise the CK seems to fit the CC headset perfectly. Is there any reason not to keep the CK (which is fitted) and use it with the 110?
CheersPosted 8 years agothomthumbMember
knee jerk reaction would be no.
but if you check the bearings and they are the same then presumably the race which mates to them must also be the same – might fowl the cups though.
you are jsut being lazy though – it’s not even a necessisty!
stoner: the bearings wouldn’t be loaded right, minute difference would soon turn into lots of play and wobbly steering.Posted 8 years agoanotherdeadheroMember
Its not a 45degree angle to 45 degree angle though is it? The bearing inner race cross section is convex, while the crown race cross section is slightly concave isn’t it? So unless they were exactly the right angle, you’ll end up with a broken (expensive) headset. If they cost you £2 I’d say go for it.Posted 8 years agovinnyehSubscriber
Stoner- If the taper angle on the race is different to the taper angle on the cup then there’s not much contact area to spread the load. Most races seem to be alloy as well, so easily deformed.I err ‘tested’ this through laziness a few weeks back and the forks lasted 5 miles or so (on the road) before play had noticeably developed. turned around, and by the time I was back home it felt like the cups were just rattling round in the headtube…Posted 8 years ago
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