Bearing Race On Fork: Standard?

Quoted message said:

Just got a 'zocci shock - drop shipped, unfortunately.

Looking at the shock it's going to replace, I see a little steel

ring at the

Quoted message said:

base of the steering tube that feels like it's a press fit.

Nothing of the sort on the new shock.

Chris King headset.

Is this ring something that's standardized among headsets, or to I

have to get a

Quoted message said:

Chris King ring?

Your LBS has a tool that is used to remove the bearing race from your old fork and one to install it
on the new fork. If you don't want to pay the LBS, you can find a length of pipe that will just slip
over the fork steerer and can be used to tap the race into place on the new fork.

To remove the race from the old fork, I just use a flat head screwdriver to *carefully* tap the race
from the bottom and loosen it up to remove it.

The race you have with your CK headset is not a standard race, and you should only use a CK race
with a CK headset.

-John Morgan

"(Pete Cresswell)" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

Just got a 'zocci shock - drop shipped, unfortunately.

Looking at the shock it's going to replace, I see a little steel ring at

the

Quoted message said:

base of the steering tube that feels like it's a press fit.

Nothing of the sort on the new shock.

Chris King headset.

Is this ring something that's standardized among headsets, or to I have to

get a

Quoted message said:

Chris King ring?
--
PeteCresswell

That's called the "crown race". Its a pressfit, but it is removeable. They are not standard among
headsets, especially the chris king one which is far different than open bearing versions, but you
can buy them individually if you don't trust yourself to take it off.

If you do want to take it off, there's a super expensive tool, or there's the flathead screwdriver
and a hammer method. Fork has to be off the bike to do this.

There's probably a little slot cut in the back of the fork right under the race. Stick the
screwdriver in there, against the race, at maybe a 30-45 degree angle to perpendicular, pointing up
the steerer tube. Give the screwdriver a good whack with a hammer. It takes a lot of force, so don't
be afraid to hit it kinda hard if you don't see anything at all happening.

TIP: Get a block of scrap wood, put it on the floor , and rest the steerer tube flat on that. It'll
make things a lot easier and help prevent damage to the top of the steerer tube.

Then, move the screwdriver to the other side of the fork and do it again. Then move it to one of the
sides, the other side, and just keep moving around the ring, giving it good whacks. It doesn't have
to move up much, maybe half a centimeter, and it'll come right off, but they're usually on there
pretty good. Just make sure you keep it as flat as possible to the steerer, if its angled it can
distort or break. Eventually it'll pop off. It'll take more force than you probably expect, so if it
doesn't look like its doing anything, hit it harder.

This will scrape up the bottom a little bit, but its not a big deal at all as long as its not awful.
If you want to file down any burrs afterwards, that wouldn't be a bad idea.

For installation, drop the race only the new fork's steerer tube and then take a pipe with an inside
diameter of just over 1 1/8" (so it just fits over the steerer tube - make sure it fits over that
little bump right above the crown too, or the race won't seat all the way!). Make sure its the right
way up - chris king races are fairly flat on both sides but the top has a little lip around the
inside. A PVC tube would probably work really well, since it would prevent damage to the race, but
anything will do. If you're worried about damage, you can tape the edge of the pipe up or work a rag
around it or something. Then its simply the reverse process - use the pipe as ram and just ram that
sucker on there. Mine was a super tight fit on my marzocchi, so it took a lot of force. You might
find the shock is absorbing your blows - so here's a quick shop trick. Throw a rag/towel over the
end of the crank lever for a bench vise, facing up. Then put the BOTTOM of the steerer tube (under
the crown) on there. The bit of lever sticking out from the pivot shaft should hold the fork on
there somewhat securely, and this will keep the suspension from affecting your ability to get that
race on there.

Then, just make sure its seated fully on the crown and flat, and you're good to go!

Jon Bond

In "]news:[email hidden],
(Pete Cresswell) <[email hidden]> typed:

Quoted message said:

Just got a 'zocci shock - drop shipped, unfortunately.

Looking at the shock it's going to replace, I see a little steel ring at the base of the steering
tube that feels like it's a press fit.

Nothing of the sort on the new shock.

Chris King headset.

Is this ring something that's standardized among headsets, or to I have to get a Chris King ring?

It's press fit. Gently knock the 'base plate' off the steerer of your old fork with a screwdriver
and a mallet. Work alternately both sides. Then obtain a 12" section of 1 1/4" PVC pipe. Slide
the base plate over the steerer, place the pipe over the steerer and set the race with the
mallet. You have to have a CK base plate for a CK headset. You can obtain them separately at your
LBS for not too much.

Mike

"(Pete Cresswell)" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

Just got a 'zocci shock - drop shipped, unfortunately.

Looking at the shock it's going to replace, I see a little steel ring at

the

Quoted message said:

base of the steering tube that feels like it's a press fit.

Nothing of the sort on the new shock.

Chris King headset.

Is this ring something that's standardized among headsets, or to I have to

get a

Quoted message said:

Chris King ring?
--
PeteCresswell

cambriabike.comchris king base plate crown race.htmOpen ↗
--
DTW .../\.../\.../\...

I've spent most of my money on mountain biking and windsurfing.
The rest I've just wasted.