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MtnBikerChk
06-04-2002, 05:33 PM
I'm trying to put my new discs on - and I've got the rotors on but now the calipers don't line up with the screws!

Tell me I'm going to be able to get them on with these hubs -

http://bike.shimano.com/mtb/deore/ComponentTemplate.asp?partnumber=HB-M555-L

PLEASE!
Old_Dude
06-04-2002, 06:31 PM
Until you get a "real" answer, maybe this will help - if your calipers are just a wee bit off, try loosening them so they'll stay on but they'll move around a bit, put on the wheel, then close the pads (use your brake lever) and then tighten up the calipers.

(this is just a guess - okay)

Have you tried the Zinn book? Mine's in the basement & dinner's on so I gotta go, but if you don't have it, I can type the basics of disc brake installation later if you want . . . gotta go.
johnbryanpeters
06-04-2002, 06:36 PM
Originally posted by MtnBikerChk
I'm trying to put my new discs on - and I've got the rotors on but now the calipers don't line up with the screws!

Tell me I'm going to be able to get them on with these hubs -

http://bike.shimano.com/mtb/deore/ComponentTemplate.asp?partnumber=HB-M555-L

PLEASE!
If the calipers don't line up with the screws, it'd sound to me as though the disk might be the wrong diameter. It does not sound like a hub issue.

Is this happening both front and rear?

J
I Are Baboon
06-04-2002, 07:14 PM
(this is mbc)

I get the rotors on, then put the wheels on the bike. The caliper doesn't fit between the mounts (on the fork in the front for example) so the pads are around the rotor - am I making sense?

Also, the rear rotor is extremely CLOSE to the frame - but does not touch.

Thanks for the offer re: Zinn - But I have it and it's useless for this.
johnbryanpeters
06-04-2002, 07:54 PM
You're making sense, but absent a sketch or photo, I don't have enough information to make further suggestions. Hard as it is, it's time to put the pieces aside and plan a trip to your LBS tomorrow.

Sorry and good luck, John
Old_Dude
06-04-2002, 08:08 PM
. . . it's time to put the pieces aside and plan a trip to your LBS tomorrow. Where's Kona Dude when you need him? I guarantee he'd know exactly what additional information you need to provide (if any) & he'd know exactly what to do. He's a bike genious - don't tell him this but I'd be willing to pay him for his advice - he's that good.

And I'm cheap.
Motionboy2
06-04-2002, 08:37 PM
Need a photo (if possible) i am not picturing it.
axel
06-04-2002, 08:46 PM
it seems to me that u need some spacers to move the caliper out no?
MtnBikerChk
06-05-2002, 07:23 AM
Originally posted by axel
it seems to me that u need some spacers to move the caliper out no?

I'm sorry I don't have a digital camera :(

There isn't enough room to fit the caliper between the fork and where it needs to sit around the rotor :(

I'm going to my lbs today :(
shootr
06-05-2002, 09:50 AM
It definetly sounds like just a diameter problem, the bracket that is supplied to install the caliper to the fork..(YOU are useing the bracket, not trying to bolt it directly are you?), is the incorrect one for this rotor diameter...
http://www.avidbike.com/2_cpsdiskbrakes/media/mech_diskbrake_large.jpg
Caliper Positioning System (CPS)
The patent pending Caliper Positioning System allows for effortless, fast and accurate alignment of the caliper to the rotor. No shims or trial and error required. To align the caliper:
• Install the caliper and lever onto the bike;
• Install the wheel, with the rotor attached;
• Slightly loosen the CPS bolts (2);
• Adjust the brake pads, use the adjuster knobs, until they are firmly contacting the rotor;
• Tighten the CPS bolts;
• Back off the pad adjuster knobs up to 1/2 turn each.

check out this popup...you are using Avids right?

http://www.avidbike.com/2_cpsdiskbrakes/popup_cps.html
MtnBikerChk
06-05-2002, 09:55 AM
Originally posted by shootr
[B]It definetly sounds like just a diameter problem, the bracket that is supplied to install the caliper to the fork..(YOU are useing the bracket, not trying to bolt it directly are you?), is the incorrect one for this rotor diameter...


lol - yes, I'm using the bracket!

are you saying they sent me the wrong brackets IN THE BOX with the rotors?
Highlander
06-05-2002, 10:03 AM
For different frames and forks. Is It the screw holes of the caliper not lining up with the screw holes for the adapter, or the screw holes for the adapter not lining up with the screw holes on the fork/frame? Whichever it is............it sounds like an incorrect adapter.
shootr
06-05-2002, 10:04 AM
that is a possibility, if the bracket is designed for a 6" rotor it would be wrong on an 8" rotor, as it would place the caliper far to deep into the rotor, (too low) and make it impossible to mount it.
are you using the avids in the pic?
MtnBikerChk
06-05-2002, 10:05 AM
Originally posted by shootr

are you using the avids in the pic?
YEP!

They are in the car - I'll get them after lunch and examine them :)
shootr
06-05-2002, 10:13 AM
see the six holes in the center of the rotor, they are what bolt to the "flange" on the hub (refering to our PMs)
MtnBikerChk
06-05-2002, 10:23 AM
Originally posted by shootr
see the six holes in the center of the rotor, they are what bolt to the "flange" on the hub (refering to our PMs)

ok. what was the question?
shootr
06-05-2002, 10:30 AM
remember what i was saying about whether it was possible to mount it to the other side of the flange??
MtnBikerChk
06-05-2002, 10:34 AM
I don't know - but if it is, that would probably help! does that mean the flange comes off?
shootr
06-05-2002, 10:40 AM
no, it should not come off, but you should be able to slip the rotor to the other side by rotating it relative to the flange, and then bolting it from the other side..
Now I am just guessing here, grasping at straws..
I don't think that this should be the case or solution at all..
but who knows...
shootr
06-05-2002, 10:43 AM
I really am as dumb as I look, I just went and checked it out, that will not be possible..
sorry for leading you astray, as I have often said, I am very new to the MTB world...
shootr
06-05-2002, 10:45 AM
what type of hubs do you have???
if they are magura, they may be incompatible...
shootr
06-05-2002, 10:49 AM
Just another Q....
is your hub "centered" in the fork??
I mean that you don't have an extra spacer on one side of the axle that isn't supposed to be there??

sorry that I am not much help...I wish that I could see it, maybe we should all pitch in and get you a digital camera...so that we can all be your "online LBS"...hehe
MtnBikerChk
06-05-2002, 12:09 PM
In my first post there is a link to my hub.

I brought the rear caliper in - it looks just like it should on the picture. I dunno.
shootr
06-05-2002, 12:21 PM
looking at your hub it actually appears that you COULD put the caliper on the inboard side...(near to the spokes), but I doubt that is how it is supposed to be...

I am becomming baffled as to what the problem is that would make the disc sit so far outboard (near to the fork), are the front and rear discs the same? as well as the rotors??
MtnBikerChk
06-05-2002, 12:28 PM
Originally posted by shootr


I am becomming baffled as to what the problem is that would make the disc sit so far outboard (near to the fork), are the front and rear discs the same? as well as the rotors??

answer: MBC is a dumbass.

I'm usually so good putting things together - I can't believe I eff'd this up.

check your pms.

thanks for everyone's help!
shocktower
06-06-2002, 04:43 PM
What happened ,how did you fornicate this one MBC ,did you have bonde moment :confused: :confused: :confused: :eek: :p ;)
MtnBikerChk
06-07-2002, 07:58 AM
Originally posted by shocktower
What happened ,how did you fornicate this one MBC ,did you have bonde moment :confused: :confused: :confused: :eek: :p ;)

yeah, you WISH I was blonde :)
shootr
06-07-2002, 08:24 AM
HEY!!!
I am blonde!!!
what is wrong with being blonde???

:D :D

So, MBC did you get everything set up yet??

how do ya like em, sweet eh??
MtnBikerChk
06-07-2002, 10:34 AM
Originally posted by shootr
HEY!!!

So, MBC did you get everything set up yet??

how do ya like em, sweet eh??

I pick it up tonite from the shop ;)
shocktower
06-09-2002, 12:35 AM
Originally posted by MtnBikerChk


yeah, you WISH I was blonde :)

UHMMMMMMMMMMMM not really ,I like all flavours of girls :p :p ;) ;) ;) ,so tell us now ,come on share ,really we will understand :rolleyes: :rolleyes:
SpasticJack
06-09-2002, 11:29 PM
I'm coming in to this a little late but here's my guess. Did you have the wrong adapter on the front brake? The first time I got discs, they sent me 2 front I.S. adapters and I had the damnedest time trying to get the rear to fit. the only other thing that comes to mind is if you have mixed up rotors or are missing the CPS washers.

What was the solution?
gravity
06-11-2002, 05:30 AM
what sort of fork are you using? and what size rotor?

not absolutely sure here, but i'd say the problem was that you had the wheel turned around the wrong way, ie the disc was on the right hand side :D :p

it's possible they included the wrong adapter, but you'd have to actually tell us what stuff you're using before we can help :rolleyes: :p
MtnBikerChk
06-11-2002, 08:13 AM
It's all good :)
shootr
06-11-2002, 09:38 AM
hey MBC, don't be shy, share your experience with the others...you might be surprised and help solve a future problem that someone else will have....

hehe
ohio
06-11-2002, 03:06 PM
I'd be willing to bet $1.25 that you just needed additional spacers between the IS mounts and the adapters. So far every caliper I've ever mounted to an IS mount needed much thicker spacers than all the ones that came with them combined...

Then again I could be wrong.

So what did the shop do?
shootr
06-11-2002, 03:12 PM
no Ohio, it is even BETTER than that...hehehehehe

(sometimes I can be such a Jerk eh MBC??)
MtnBikerChk
06-11-2002, 03:48 PM
Originally posted by ohio
I'd be willing to bet $1.25 that you just needed additional spacers between the IS mounts and the adapters......


you owe me $1.25!

Shootr: It's not my fault the directions are backwards!



:angry:
kuma
06-11-2002, 07:54 PM
This is all very interesting.....I have had a similar problem where the calipers just "didn't line up" and I'm willig to bet good money that my mistake is more dumbassish that MBCs!

Soooooooooo...are we interested in sharing? :D :D :D
MtnBikerChk
06-12-2002, 07:23 AM
Originally posted by kuma
This is all very interesting.....I have had a similar problem where the calipers just "didn't line up" and I'm willig to bet good money that my mistake is more dumbassish that MBCs!

Soooooooooo...are we interested in sharing? :D :D :D

Maybe it was the same.
gravity
06-12-2002, 07:54 AM
Originally posted by MtnBikerChk


Maybe it was the same.

well spill the frickin beans already! what was wrong?!
KonaDude
06-14-2002, 12:33 AM
Originally posted by Nobody
Just a guess, but:

Front caliper on rear adapter and,

Rear Caliper on Front adapter.

Nope, the calipers themselves are identical.

I'm betting the problem was that the brake had the wrong adapter on it. There is the Front adapter and the Rear adapter. On the box, it is marked front or rear, and on the adapter. The rear is "taller", so to speak. Larger in general. The front is smaller. Get the front adapter on the back and you'll have major problems. Get the back adapter on the front and you may not have any pad on rotor contact.

Believe me, I know these things inside out, worked on MANY sets.

Also, make sure you have the gimballed washers (the ones between the calipers and adapters) arranged properly. Only when they're setup properly will they allow the caliper to move in its range of adjustment, and line up properly with the rotor.

I realize the bike's fixed, but this is good for reference in case someone else has the same problem!

And Old_Dude, you didn't PM me back! I didn't know what your most recent questions were, so I wasn't able to help you out more!
amateur
06-20-2002, 09:41 PM
setting up discs is a b*tch
bomberz1qr20
06-20-2002, 10:07 PM
my $.02:

The adaps need to be flipped, the caliper is off center between the adap holes....maybe?