2013 Specialized Allez Headset
Moderator: robbosmans
Hi,
I've got a specialized allez sport 2013 which needs new headset bearings. It's an intergrated bearing threadless headset with a 1 1/8 inch steered. Don't really know which bearings I can get but someone told me that there are cups inside you need to knock out before you can put decent bearings in?
Thanks,
I've got a specialized allez sport 2013 which needs new headset bearings. It's an intergrated bearing threadless headset with a 1 1/8 inch steered. Don't really know which bearings I can get but someone told me that there are cups inside you need to knock out before you can put decent bearings in?
Thanks,
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- Posts: 74
- Joined: Sun Sep 29, 2013 4:34 pm
You may have an "integrated" headset which has steel cups pressed quite deep into the head tube, these form the bearing race for steel balls in a metal holder. It mimics what most folk would recognise as a traditional external headset, except it's hidden inside the head tube.
IF you have the above, then it's possible to drift the steel "cups" out, as you would with a more traditional headset. It's awkward, to say the least…. However, once they are out, you'll see that the frame is ready to accept a proper integrated headset, there are bearing seats for the upper and lower bearings already formed in the head tube.
Normally it's then possible to fit an 1 1/8, 36/45, Cane Creek or similar headset. The whole new headset should be used, including the crown race. It could also be an 1 1/8, 45/45, Campag headset fit….. One measurement is worth a thousand forum posts…..
If you are in the UK, then the steel inserts could well be seizing into the aluminium head tube, and it's a pig of a job to get them out, so be sure/confident of what you are doing when drifting them. It's useful to have a helper, or something to support the front of the frame…..
IF you have the above, then it's possible to drift the steel "cups" out, as you would with a more traditional headset. It's awkward, to say the least…. However, once they are out, you'll see that the frame is ready to accept a proper integrated headset, there are bearing seats for the upper and lower bearings already formed in the head tube.
Normally it's then possible to fit an 1 1/8, 36/45, Cane Creek or similar headset. The whole new headset should be used, including the crown race. It could also be an 1 1/8, 45/45, Campag headset fit….. One measurement is worth a thousand forum posts…..
If you are in the UK, then the steel inserts could well be seizing into the aluminium head tube, and it's a pig of a job to get them out, so be sure/confident of what you are doing when drifting them. It's useful to have a helper, or something to support the front of the frame…..
Bog standard 36 x 45 1 1/8" cane creek style bearing.
http://www.chainreactioncycles.com/ca/en/fsa-bearing-th-873e-acb/rp-prod134043
http://www.chainreactioncycles.com/ca/en/fsa-bearing-th-873e-acb/rp-prod134043
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- Posts: 74
- Joined: Sun Sep 29, 2013 4:34 pm
If I'm reading the spec line correctly, it suggests a 41.8mm diameter, 45/45 deg bearing in both upper and lower. That is the Campag dimension.
It's generally easier, and pretty much the same price wise, to buy a complete headset and just use the bearings from it.
I would expect a lot of bike shops to have stock of the headsets, but maybe not know what you're on about if you ask for a bearing by dimension.
It's generally easier, and pretty much the same price wise, to buy a complete headset and just use the bearings from it.
I would expect a lot of bike shops to have stock of the headsets, but maybe not know what you're on about if you ask for a bearing by dimension.
goodboyr wrote:Bog standard 36 x 45 1 1/8" cane creek style bearing.
http://www.chainreactioncycles.com/ca/en/fsa-bearing-th-873e-acb/rp-prod134043
That bearing is 41.0mm dia and 6.5mm thick and not the correct one.
androidavies is correct. The OD is 41.8mm and the thickness is 8.0mm according to that chart.
A TH Industries TH-870 will fit (1-1/8" 45deg x 45 deg Campag compatible). FSA sell them under their own name and Ritchey do a Campag compatible as well.
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Cane Creek headset finder for this bike says IS 41 which is what I said....weird.
https://www.canecreek.com/headset-fit-finder
Sent from my SM-G900W8 using Tapatalk
https://www.canecreek.com/headset-fit-finder
Sent from my SM-G900W8 using Tapatalk