4 Pot Caliper for 7.5\" Disk
Turbo Mini Forums

I am in the market for a pair of 4-pot calipers. There seem to be three choices, Mini Spares, Mini Sport and KAD. KAD ones are a little out of my price range which leaves Mini Spares or Mini Sport.

It has been reported on here and other forum's that people have trouble with bleed nipples and bleeding on the Mini Sport calipers. I am interested to hear folks recent experience as i believe that there may have been design improvements.

Thanks

Mini spares are what you want.

Mini sport are terrible in my experience

No experience to speak of, but i will be ordering inspires callers later in the year

If something is worth doing, it's worth doing half of.

Stupid phone. mini spares.

i use mini sport ones. but hey are 7.9's 4 pot still,
working fine for a long while now.....

Mini Spares seems to be getting the vote so far by 2:1

I recall hearing a while ago that folks had trouble with the bleed nipples seizing up. They were small diameter and would then shear off.

two nipples on minispares calipers alledgedly

I have a set of early mini sport 4 pots on 7.5" non vented.

I have heard of people not being able to bleed them - I have had no trouble at all. The only thing I can think of is people fitting them upside down....

Ive currently got the 8.4 non vented minisport calipiers on my clubman, they have been fine, BUT my previous 7.9 Minisport set had to be helicoiled as the alloy seemed really soft and I damaged the brake pipe thread with very little effort. Minisport did this for free and said its was a common repair. Never had any problems bleeding them though. Moved to KAD now on my turbo, and they seem very good, especially with mintex 1155 pads.

Edited by alaskanow0 on 7th Oct, 2011.

Class C 3rd Place Avon 2011 14.18 @101mph

I was one of the unfortunate ones to have snapped off a bleed nipple(minisport 7.9 vented), had to carefully weld a nut to the remainder of the nipple which did the trick! a smidge of copper grease went on with the replacement, hopefully will prevent the same happening again! other than that they seem a good caliper.

I have 2 sets of minisport ones:

7.5 non vented - they are a later design with an "insert" which is a 13mm hollow bolt essentially, which the bleed nipple screws into, so when the nipple snaps, you can replace the insert and nipple.

7.9 vented, old style - nipple's both snapped in the body, but I think the previous owner had done them up far tighter than required.

Can't see why people would have a problem bleeding them though assuming the nipples aren't broken!

I have a set of Minisport 4 pots on 7.5 discs, they are the ones with the inserts i had a nipple snap, so i called them up and they sent me a new set up for free.

So over all I am well happy with how they work and there after care as i have had them for long time now.

I have started posting on Instagram also my name on there is turbomk1golf

Nothing is impossible it just costs more and takes longer.

So which pads do people use with the 4 pot 7.5 setup? I understand that there is a small mod to make to pads with the Mini Spares caliper, how about the minisport one?

Hi guys,
new to all the forum stuff in relation to minis. Not a mega clued up on minis either so would really appreciate you advice and patience.

Me and a mate have bought a '69 Cooper S with 1310 turbo charged engine. For an little, old car it is pretty quick but we would like a little more stopping power.

The car currently has non servo'd brakes using no vented or grooved discs and std cooper S caliprs which consequently means you have to stamp on them pretty firmly. The next job is to have a servo fitted which should at least mean less effort required by the driver to stop the car. We are also running the car on 10" wheels and intend to keep those as they look more befitting on the car of the style and age imho.

The question is whether in the opinion of the those in the know do the four pot caliper make a huge difference to breaking over the standard Cooper S calipers after the servo is fitted??

if it helps,

i was running cooper s setup with 1144's on and they were good, ive now got the minis spaires four pots on and theres a difference, less fade.

if your not running 1144's you may want to try them, many people use them. good luck