Brake upgrade help/advice required
#1
![Default](https://passionford.com/forum/images/icons/icon1.gif)
I have recently purchased a 4 pot AP setup for my focus st170 hubs, however upon trying to fit them i have come in to a few problems.
The kit although brand new was bought second hand via ebay so returning it isn't an option.
I have e-mailed the company who produced it and have had no reply from them and as it was a one off kit i doubt they care either way as they aren't dealing with the original purchaser.
The kit is based upon the use of focus RS brembo grooved disks which are 324x28mm with custom brackets and AP CP5200 808 & 809 S4 calipers.
As you can see from the pictures the focus RS disk fouls the lower ball joint when compared to the original 300x28mm st170 disk.
![](https://img.photobucket.com/albums/v618/steve7786/S7000048.jpg)
st170 disk
![](https://img.photobucket.com/albums/v618/steve7786/S7000043.jpg)
focus RS disk
![](https://img.photobucket.com/albums/v618/steve7786/S7000041.jpg)
![](https://img.photobucket.com/albums/v618/steve7786/S7000045.jpg)
I have already got to fit a 5mm spacer to the outside of the disk as my existing wheels just touch the face of the caliper when the wheels are fully tightened.
I have tried putting a 5mm spacer behind the disk which does clear the hub but then the caliper mounting bracket is in the wrong position.
The caliper bracket can't be spaced as it needs to come towards the wheel and is bolted behind the knuckle. i wouldn't want to risk machining 5mm of the mounting bracket either.
Ideally i don't want to use any spacers but i think that the focus RS disks have got to go.
Has anybody got any suggestions or advice in which way to proceed with this, i don't want to spend more than around £400-£450 on a set of disks,bells & brackets.
Does anybody know who might be able to get these to fit? If not i'll have to break the kit and sell it seperately as it's not going to fit what it was originally designed for.
Thanks in advance
Steve
The kit although brand new was bought second hand via ebay so returning it isn't an option.
I have e-mailed the company who produced it and have had no reply from them and as it was a one off kit i doubt they care either way as they aren't dealing with the original purchaser.
The kit is based upon the use of focus RS brembo grooved disks which are 324x28mm with custom brackets and AP CP5200 808 & 809 S4 calipers.
As you can see from the pictures the focus RS disk fouls the lower ball joint when compared to the original 300x28mm st170 disk.
![](https://img.photobucket.com/albums/v618/steve7786/S7000048.jpg)
st170 disk
![](https://img.photobucket.com/albums/v618/steve7786/S7000043.jpg)
focus RS disk
![](https://img.photobucket.com/albums/v618/steve7786/S7000041.jpg)
![](https://img.photobucket.com/albums/v618/steve7786/S7000045.jpg)
I have already got to fit a 5mm spacer to the outside of the disk as my existing wheels just touch the face of the caliper when the wheels are fully tightened.
I have tried putting a 5mm spacer behind the disk which does clear the hub but then the caliper mounting bracket is in the wrong position.
The caliper bracket can't be spaced as it needs to come towards the wheel and is bolted behind the knuckle. i wouldn't want to risk machining 5mm of the mounting bracket either.
Ideally i don't want to use any spacers but i think that the focus RS disks have got to go.
Has anybody got any suggestions or advice in which way to proceed with this, i don't want to spend more than around £400-£450 on a set of disks,bells & brackets.
Does anybody know who might be able to get these to fit? If not i'll have to break the kit and sell it seperately as it's not going to fit what it was originally designed for.
Thanks in advance
Steve
#4
![Default](https://passionford.com/forum/images/icons/icon1.gif)
may be able to use a proper machined spacer that goes thew the centre spigot and out the front to locate on your wheels depending what wheels you have i done these before
looks like a top hat that goes behind disc it all depends how much it catches on the ball joint if its more than 5mm you going to have to go to disk n bell set up
hope this helps
cheers tab
looks like a top hat that goes behind disc it all depends how much it catches on the ball joint if its more than 5mm you going to have to go to disk n bell set up
hope this helps
cheers tab
![Top](https://passionford.com/forum/images/smilies/smile011.gif)
![Top](https://passionford.com/forum/images/smilies/smile011.gif)
![Top](https://passionford.com/forum/images/smilies/smile011.gif)
![Top](https://passionford.com/forum/images/smilies/smile011.gif)
![Top](https://passionford.com/forum/images/smilies/smile011.gif)
#5
![Default](https://passionford.com/forum/images/icons/icon1.gif)
I'm running the focus 7 spoke 17" alloys
![](https://img.photobucket.com/albums/v618/steve7786/DCP_0628.jpg)
I tried fitting one of the eibach 5mm spacers i have and this gave ample clearance for the disk from the ball joint. The only thing with doing that was the caliper & mounting bracket alignment was out.
I don't mind going disk and bell setup as i was planning on going down that route once the disks needed replacing.
Are you still in the business of doing this as i'm off work until the end of the month and not too far away in Birmingham.
What would be the rough cost of going for 330x28mm disks with the correct brackets?
Cheers
Steve
![](https://img.photobucket.com/albums/v618/steve7786/DCP_0628.jpg)
I tried fitting one of the eibach 5mm spacers i have and this gave ample clearance for the disk from the ball joint. The only thing with doing that was the caliper & mounting bracket alignment was out.
I don't mind going disk and bell setup as i was planning on going down that route once the disks needed replacing.
Are you still in the business of doing this as i'm off work until the end of the month and not too far away in Birmingham.
What would be the rough cost of going for 330x28mm disks with the correct brackets?
Cheers
Steve
#7
![Default](https://passionford.com/forum/images/icons/icon1.gif)
If it is safe to remove the material from the bracket then i'm up for doing that. When would be a good time for you?
This shows the bracket design better
![](https://img.photobucket.com/albums/v618/steve7786/S7000034.jpg)
I have to fit a spacer to the outside of the disk just to clear the outside edge of the caliper from the wheel, i can do all of the bolts up fully just not spin it freely. I bought the eibach 5mm spacer kit with longer hub bolts to combat theis.
Thanks
This shows the bracket design better
![](https://img.photobucket.com/albums/v618/steve7786/S7000034.jpg)
I have to fit a spacer to the outside of the disk just to clear the outside edge of the caliper from the wheel, i can do all of the bolts up fully just not spin it freely. I bought the eibach 5mm spacer kit with longer hub bolts to combat theis.
Thanks
Trending Topics
Thread
Thread Starter
Forum
Replies
Last Post