Join Date: Jun 2005
Location: San Jose, CA
Bikes: trying to decide on sport tourer
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Integrated Headset (again)
I'm putting together a rather inexpensive (Performance Scatante on sale)frameset which includes a 1 1/8
integrated headset. I'm trying to confirm how to assemble it. It's dustcover
says Cane Creek ...Aheadset. It is a cup, cone and caged ball bearing type.
The outer cups are a drop fit into the 41mm ID flared headtube seats. Then the
caged ball bearing is inserted. Next the inner cone ring. There is also a formed
rubber ring that acts as a dirt/dust/water seal to the bearings.
The headset parts also include the dust cap, the stem cap, star nut, Allen head screw, 2- .010 (.254mm) thick spacers 1 1/8 ID 1.357 inch OD, a fork crown race, and a split flanged ring.
Since I have the inner bearing cup, do I need the Fork Crown Race installed?
The crown race does not contact any bearings, but contacts the lower inner
bearing cup. The flange on the crown race appears to mate well with the inner
surface of the cone bearing cup?
The fork seems to trial assemble w/o hitting the lower part of the headtube
without the crown race. The crown race would appear to insure the fork crown would
never rub aqainst the headtube. The crown race is definitely a press fit onto
the machined lower section of the steerer.
Question 2: What are the two 1 1/8 ID .010 thick shim spacers for?
Question 3: What is the split flanged ring for? I suspect it is placed inside the
top end bearing cone cup (it is a good fit like the fork crown race), on top of which goes the dust cap with the Cane
Creek lettering. It's function could be to provide more clearance between
the dust cap and the outer bearing cup.
Any response would be appreciated. I could take a photo of the parts if it would
be more helpful. I searched previous threads on the subject and the link to the Park Tools explanation of the different integrated headsets is helpful.