Avid Elixir Front Brake mount issue(with pic)

rammer

Hi,

I have a Rockshox Recon Gold RL year 2010 I think, with the power bulge, this fork has a post mount, I,m trying
to mount a Avid Elixir with a 185 post mount but it doesn't want to line up, are there diffent types of post mount ??

I have remedied this by leaving out one set of adjustment washers at the top, but im sure this isn't right.Do I need one of these? http://www.bikepedia.com/PA/Item.aspx?itemid=456371



Thanks in Advance.

386ka

What part of the adjustment washers did you leave out? Pics, or describe how the mount doesn't line up?

mattyg2004

Is the black bracket the right way up. It does look like it. But it might get the rotor more into the calliper the other way up??????

1mancity2

I think its upside down.

rammer

I'm sure its on the right way as there's an arrow on the other side which points up! :?

WisePranker

Is that the 185 rotor that you have fitted in the picture?

If it is, it looks like you don't need the spacer.

Ghostt

Is it the right adaptor? There is a rather confusing selection for avid brakes, and looking at how the 'bulge' (excuse the technical language) or most curved part on the adaptor doesn't quite line up with the edge of the caliper body, it might not be the right one.

mrmonkfinger

is the disc 180 or 185?

as for different sizes of post mount - I don't think there are, there is only ever "post - XXXmm" listed here http://www.chainreactioncycles.com/Cate ... goryID=563

rammer

its a 180.

386ka

rammer wrote:

its a 180.

Oh, you are using a 185mm adapter with 180mm rotor? No wonder it doesn't fit. Try it with Shimano 180mm adapter, + the whole CPS system (don't leave out the washers).

EDIT: Or use the newest adapter from Avid, they trew away the 185mm standard, and got on with 180mm, as most of the disc brake manifacturers. http://www.chainreactioncycles.com/Mode ... elID=75477 (you need 20+ mm adapter for the front)

Cheers.

rammer

The size of the rotor isnt the problem as such, with the wheel out just the whole mounting doesnt seem right I think because it's a 160mm direct post mount it must the Avid CPS mount, I will order it and try, you can never have too many rotor mounts can you!

Thanks for all your help.

nicklouse

what size of what are you using?

you MUST use ALL the washers for the calliper to be the "standard" size. IE direct on a 6" post mount or on a 180 or a 185 adaptor you MUST use the washers.

looks like rotor and adaptor are not for the same size.

386ka

rammer wrote:

The size of the rotor isnt the problem as such, with the wheel out just the whole mounting doesnt seem right

That's because it isn't right. As nicklouse said, you must use all the washers, and the correct adapter matching the rotor diameter.

(You can see superstar adapters too> http://superstar.tibolts.co.uk/product_ ... cts_id=359)

rammer

I understand you must use the right rotor and mount, that is why each mount is marked with the size. The reason I left the washers out was because it remedied the problem for the moment as I wanted to ride the bike. even with the correct Rotor (185) and Mount I still don't think its right see pic, disregard rotor size in pic but does it look right? looks like the caliper is not at right angle, before I part with money for the right rotor I want to get it right.

davewalsh

Can't see the pic (internet police at work) but I'm guessing you're worried as the caliper is no longer parallel with the fork. It looks a little odd but that's how it's meant to be, as the CPS washers can take out the misalignment between the bolt and caliper. Note: Avid 185 or +20 adaptors rely on the CPS washers to work properly and aren't compatible with any other caliper.

IF you're worried about the looks you could always stick with the 180 disk and buy a 180 mount from any other manufacturer, whilst still using all the CPS washers.

The Northern Monkey

rammer wrote:

I understand you must use the right rotor and mount, that is why each mount is marked with the size. The reason I left the washers out was because it remedied the problem for the moment as I wanted to ride the bike. even with the correct Rotor (185) and Mount I still don't think its right see pic, disregard rotor size in pic but does it look right? looks like the caliper is not at right angle, before I part with money for the right rotor I want to get it right.

Set it up properly with the correct mount, correct disk and all of the washers before going any further and confusing everything.

We can't tell if it looks right because it is not set up correctly yet.

386ka

rammer wrote:

I understand you must use the right rotor and mount, that is why each mount is marked with the size. The reason I left the washers out was because it remedied the problem for the moment as I wanted to ride the bike. even with the correct Rotor (185) and Mount I still don't think its right see pic, disregard rotor size in pic but does it look right? looks like the caliper is not at right angle, before I part with money for the right rotor I want to get it right.

It seems a little odd, but that's why there are CPS washers in place. What do you have at the back? 160, 180 or 185mm rotor? If you have 185, move it on the front and compare, can't really tell without the correct size rotor. Anyway, as stated above, buy the correct rotor or mount (is cheaper at 4 pounds from SS), and take it from there.

EDIT: on second thoughts, those washers look badly missaligned, after all, their manual says:
TRI-ALIGN™ CALIPER POSITIONING SYSTEM
Avid disc brakes use a unique alignment system called Tri-align Caliper
Positioning System (CPS). These stacks of concave and convex washers allow
the caliper to be perfectly aligned with the rotor, regardless of imperfections in
the mounting tabs on the fork or frame, giving you full, square pad contact.

davewalsh

Just seen the pic and your setup is correct for a 185 rotor.

So either change the rotor or adaptor to suit what you've got.

rammer

davewalsh wrote:

Just seen the pic and your setup is correct for a 185 rotor.

So either change the rotor or adaptor to suit what you've got.

so if I get a 185 rotor that will be okay? its just that the rest of my avid brakes on my 3 other bikes(i.s. mounts) all line up squarely the caliper on this mount seems slightly of angle.

davewalsh

rammer wrote:

so if I get a 185 rotor that will be okay?

For the 3rd time, YES !

rammer

For the 3rd time, YES !

You sure?

benpinnick

rammer wrote:

davewalsh wrote:

Just seen the pic and your setup is correct for a 185 rotor.

So either change the rotor or adaptor to suit what you've got.

so if I get a 185 rotor that will be okay? its just that the rest of my avid brakes on my 3 other bikes(i.s. mounts) all line up squarely the caliper on this mount seems slightly of angle.

Ive got to agree, this looks on the piss to me. Looks like an issue with the mounts on the forks though, specifically the top one being too long, which is wierd. The effect is probably not that big an issue though.

386ka

I have just seen a few 185 setups, and they do look a bit missaligned. Don't worry, be happy.

benpinnick

Heres one on my Blur:

rammer

Ive got to agree, this looks on the wee-wee to me

Thats the technical description I was looking for! looks perfectly in alignment on the Blur,I'm sure its the wrong mount, the forks are a direct 160 mount.

I'm going to go for one of these in 180mm or I may get a 185mm disc and get a 185 adapter.
http://northshorebillet.com/index.php?main_page=product_info&cPath=41_44_45&products_id=74

nicklouse

rammer wrote:

Ive got to agree, this looks on the wee-wee to me

Thats the technical description I was looking for! looks perfectly in alignment on the Blur,I'm sure its the wrong mount, the forks are a direct 160 mount.

I'm going to go for one of these in 180mm or I may get a 185mm disc and get a 185 adapter.
http://northshorebillet.com/index.php?main_page=product_info&cPath=41_44_45&products_id=74

why? there is nothing wrong with what you have and it will look even more on the Piss with the other mount.

rammer

why? there is nothing wrong with what you have and it will look even more on the wee-wee with the other mount.

I disagree.

See this post.http://www.bikeradar.com/forums/viewtopic.php?f=40050&t=12810490

benpinnick

I think you're going to find that all mounts will look like this on the RS forks. It looks to me that they run a longer top post than most. As the adaptors are designed to compensate for the shorter top mount, it looks funky, but it should run fine. I would probably still ditch the tri-align do-hickey on the inside top though.

nicklouse

rammer wrote:

why? there is nothing wrong with what you have and it will look even more on the wee-wee with the other mount.

I disagree.

See this post.http://www.bikeradar.com/forums/viewtopic.php?f=40050&t=12810490

How? why?

you say it is a 185 disc and a 185 adaptor. that is how they are.

Like I said I see nothing wrong. what do you think is wrong as there IS nothing wrong.

davewalsh

benpinnick wrote:

I would probably still ditch the tri-align do-hickey on the inside top though.

I wouldn't, as the spacing would be wrong and the disc would probably foul the caliper.

What you have is fitted correctly, nothing is wrong and it will work fine. If you find it asthetically displeasing then buy something else, Just make sure the rotor and adaptor are the same size and don't miss out any of the CPS washers.

benpinnick

davewalsh wrote:

benpinnick wrote:

I would probably still ditch the tri-align do-hickey on the inside top though.

I wouldn't, as the spacing would be wrong and the disc would probably foul the caliper.

What you have is fitted correctly, nothing is wrong and it will work fine. If you find it asthetically displeasing then buy something else, Just make sure the rotor and adaptor are the same size and don't miss out any of the CPS washers.

Obviously assuming none of the above is true....