crown race removal

z000m

does any1 know a cleanway to remove a crown race? cleaner than the hammer and old screwdriver method but not as clean as the park CRP-1 method?

nicklouse

looked in the FAQs?

that is the way to do it.

no other way.

dennisn

campy has a tool. #729 crown race remover. You can look at it on www.excelsports.com I had my uncle, who's a machinist, make me one for next
to nothing.

Dennis Noward

z000m

ive got one of them its not wide enough to go over the crown on suspension forks

dennisn wrote:

campy has a tool. #729 crown race remover. You can look at it on www.excelsports.com I had my uncle, who's a machinist, make me one for next
to nothing.

Dennis Noward

dennisn

z000m wrote:

ive got one of them its not wide enough to go over the crown on suspension forks

dennisn wrote:

campy has a tool. #729 crown race remover. You can look at it on www.excelsports.com I had my uncle, who's a machinist, make me one for next
to nothing.

Dennis Noward

sorry i don't have a mountain bike. that's something i didn't know. interesting problem.

Dennis Noward

nicklouse

dennisn not a prob. that campag tool is great but unfortunately just about every MTB fork has a crown that covers the crown race. if you look in the FAQ section there is an example of an extreme situation. and working you way round it with some means of lifting it up the steerer is how you have to do it.

in some extreme cases the kitchen knife has been brought into play just to get it started.

supersonic

Oh yes, had the kitchen knife out before! Luckily a couple of forks manufucterers have starting putting notches into the crown.

Splasher

When you buy a headset, it's almost bound to have a chamfered inner race on the bearing for the the crown race to fit against. If the crown race isn't already split, I stick a junior hacksaw straight through it before I fit it for the first time. There's no problem because by preloading the stack, you force the crown race into the bearing chamfer which compresses the race onto the steerer.

I've been doing it for years and it makes removing races a piece of p1ss.

nicklouse

Splasher wrote:

When you buy a headset, it's almost bound to have a chamfered inner race on the bearing for the the crown race to fit against. If the crown race isn't already split, I stick a junior hacksaw straight through it before I fit it for the first time. There's no problem because by preloading the stack, you force the crown race into the bearing chamfer which compresses the race onto the steerer.

I've been doing it for years and it makes removing races a piece of p1ss.

SORRY that is VERY VERY POOR advice.

yes in many cases the crown race is not actually a race. But in the majority of headsets supplied on bikes and offered as replacements the race is a race and as bearings run on it must NOT be cut.

Splasher

nicklouse wrote:

Splasher wrote:

When you buy a headset, it's almost bound to have a chamfered inner race on the bearing for the the crown race to fit against. If the crown race isn't already split, I stick a junior hacksaw straight through it before I fit it for the first time. There's no problem because by preloading the stack, you force the crown race into the bearing chamfer which compresses the race onto the steerer.

I've been doing it for years and it makes removing races a piece of p1ss.

SORRY that is VERY VERY POOR advice.

yes in many cases the crown race is not actually a race. But in the majority of headsets supplied on bikes and offered as replacements the race is a race and as bearings run on it must NOT be cut.

:shock: I'd read it again before you start SHOUTING. For one thing I didn't give advice, I explained what I do. And for another, I explained that I do this on headsets which have a chamfered inner race already on the bearing.

I will accept that unless you have a basic knowledge of bearings, the difference between a cartridge headset and a loose ball headset may have not have been apparent but you could have clarified that without the DRAMA.

stevie the freerider

adding fire tot the fuel here but:

on my 'zocchi z.1 FR (2003) the steerer looks to have a thred but its just rings and is pressed from 1 ring tot he next, very annoying to remove but on my AM bike the forks (marz's again,) the race sits on a litle lip above/ on the crown
A) whitch type are we talking about
and how do i get the ar*sing race of me z1s

Splasher

The only way to get them off is to prise them if you want to re-use them or cut them if you don't but in either case, if you fcuk it up, you can seriously damage your fork. Be warned and seek professional help if you have any doubts.

nicklouse

stevie the freerider wrote:

adding fire tot the fuel here but:

on my 'zocchi z.1 FR (2003) the steerer looks to have a thred but its just rings and is pressed from 1 ring tot he next, very annoying to remove but on my AM bike the forks (marz's again,) the race sits on a litle lip above/ on the crown
A) whitch type are we talking about
and how do i get the ar*sing race of me z1s

err there is only one way that a crown race fits to a fork. and that is a press fit.

if it is not flush with the crown it is not fitted correctly.

So stevie get you forks looked at before things go pear shaped.