Headset bearing replacements??

Last time i replaced headset stuff it was before before intergrated headsets became the norm, so now i need new bearings i’m a bit lost.

I have a kona jake the snake 2011 cross bike with intergrated tapered headset.
I’m i right in thinking that the bottom option of the link is what i need as a replacement and these are fairly standard and will fit the existing crown race and frame?

http://www.chainreactioncycles.com/Models.aspx?ModelID=62162

A quick google finds the kona spec which suggests your headset is a FSA No. 57-B.

http://2011.konaworld.com/bike.cfm?content=jake_the_snake

Googling that brings up the FSA spec

http://www.fullspeedahead.com/products/290/Orbit-15-ZS

which says you need 36/45 rather than 45/45 as per your link to ritchey bearings.

beyond that, I can’t find anywhere with bearings for tapered headtubes in that size!

further searching… using part numbers from the FSA spec sheet

http://www.fullspeedahead.com/storage/insidetech/items/EN_fc1f6e5e-c440-414a-b630-2a84bda89c54_Orbit%201.5%20ZS.pdf

eg. lower bearing

http://www.ukbikestore.co.uk/product/140/160_6740/fsa-mr110-073-rs-15-acb-36-x-45-bearing.html

thanks for that CP

so opened it up last night expecting to find a sealed cartridge bearing with numbers printed on the side helping me choose a likely replacement.

to my suprise i discovered an open loose bearing type!!
Also the surface within the frame that the bearing move on are pitted.

Surely this most be a semi intergrated headset and i sure be able to replace the cups, as if not the frame is finished?

Looks like a trip to a bike shop.

i hate the mine field that has been created in headset.
Convential press/Bash in cups makes more sense.

weird. did you buy the bike new? If they are indeed loose bearings, then it sounds like a bodge to me! Any pics?

Can you see a cup in the frame?

aye brand new.
i wonder if the number 57 is sealed bearings and the 57-B is the OEM loose bearing crap type.

It does look like the cup is a serperate piece to the actual frame.
Eg, the material in the headtube is rough until right at the very top just under the bearing race there is a ring of shiney machined metal.

Seems to fit totally flush within the head tube so no where to jam a rod and bash out other than on the backside of the bearing race it’s self.

I’ve have a couple of phone style pics but no idea how to upload from computer?

email em to me and I’ll take a look – address in my profile.