Alcon 13" mono6 VS Stoptech 332 ST40

[revhards4]

I need to know specifically which caliper is thinner and provides more wheel clearance, the Stoptech 332 ST40 setup or the Alcon 13" mono6 Motorsport setup. I printed both templates and the stoptech seems to be thinner but I was always told the Alcon provided more wheel clearance? Is this only on their mono4 tracksports brakes?

Anyone with real world experience in switching from either brand?

[Mike@PureMS]

I'd pick the Alcon's over the Stoptech and get new wheels instead or run a small spacer instead. They're that much better.

[revhards4]

Thaks for the reply, I was waiting when you'd chime in. I have CCW classics and they supplied a 13mm spacer to clear a Stoptech 332 kit...The Alcon Mono6 is very tempting as it's a 6 piston 13" kit. Should have great pedal feel but I just can't sell my wheels

With the 13mm spacer on there I have ALOT of room so idk...

[Howard Hughes]

Untrue Stoptechs have more clearance.... you can fit them under 17's where that is not possible for Alcons.. pretty sure you must run a 18 or larger rim at all times.... Stoptechs also have many more brakes pad options...

I was actually going to buy Alcons as they are awesome brakes, but most poeple including myself will never push them limits on a BBK... with the price diffrence and more wheel and pad options I went Stoptech.

[actlsub9]

Untrue Stoptechs have more clearance.... you can fit them under 17's where that is not possible for Alcons.. pretty sure you must run a 18 or larger rim at all times....

The 13" Alcon kit does fit under a lot of 17" wheels.

[Mike@Startup]

Not to get into it, but the Alcon is in another league over the Stoptechs. I would always suggest a monoblock caliper.

Brembo also has good clearances with the smaller kits, they can fit stock 17in wheels.

[jeremy@matrix]

Untrue Stoptechs have more clearance.... you can fit them under 17's where that is not possible for Alcons..

Where did you hear this?

Best thing to do for each application is use the brake kit template to ensure a kit will fit behind your wheel.

[[email protected]]

The Alcon calipers are hella smaller than the Stoptech units.

You can't really compare them as they are two totally different calipers.

You might want to run the Mono4 caliper as the A4 master brake cylinder might be too small to activate the Mono6 one.

That's what I was told anyway

[jeremy@matrix]

The Alcon calipers are hella smaller than the Stoptech units.

You can't really compare them as they are two totally different calipers.

You might want to run the Mono4 caliper as the A4 master brake cylinder might be too small to activate the Mono6 one.

That's what I was told anyway

Correct.

[Murre]

The Alcon calipers are hella smaller than the Stoptech units.

You can't really compare them as they are two totally different calipers.

You might want to run the Mono4 caliper as the A4 master brake cylinder might be too small to activate the Mono6 one.

That's what I was told anyway

If I want to use Mono6 calibersin my B6. What master brake cylinder I have to change to replace it...B6S4, B7S4 or B7RS4?

[[email protected]]

You would need to upgrade to the B6S4 MBC use the Mono6 setup.

I have yet to overload the mono4 setup at any track day I have gone to so far... but with double the power output now I'm going to try again!

[jeremy@matrix]

I agree with Winston...I think you'll find the Mono4 setup to exceed most needs. It's truly incredible!

[EricPA]

I ran Stoptech 332 brakes for 4 years/85k miles and replaced them with the Alcon 13"/328mm Mono6 brakes last March. Both calipers clear my stock 17" wheels (B5 S4) and my 18"x8" 35et BBS RS-GT wheels. However, I must run a 2mm spacer for my 17"x8" 35et BBS RC wheels to clear the Alcons.

[lookaught]

I ran Stoptech 332 brakes for 4 years/85k miles and replaced them with the Alcon 13"/328mm Mono6 brakes last March. Both calipers clear my stock 17" wheels (B5 S4) and my 18"x8" 35et BBS RS-GT wheels. However, I must run a 2mm spacer for my 17"x8" 35et BBS RC wheels to clear the Alcons.

The Stoptech's only clear the stock Avus wheels by about a millimeter or two anyway. It sounds like the Alcons are a hair wider (or at least a few millimeters more outboard). OP if you have 13mm spacers, check the clearance with the Stoptechs by finding a local owner and measure to see if the Alcon's will fit.


In my experience, Stoptech has incredible, amazing customer service but their product is not top quality when compared to the Brembo and Alcon parts. I had Stoptechs on my car for ~40,000 miles and had have the following replaced under warranty: One set of calipers, two sets of brackets, and two sets of rotor hats/pins. On top of that I had to buy two sets of rotor rings and all new hardware (not cheap) and a rebuild kit. This was over the course of probably 15 track days and regular street driving (including winter). Stoptech was immensely helpful with the warranty and I can't say enough about their customer service... but when I buy another BBK it'll be a brembo kit. I still have my Stoptech calipers in my garage collecting dust because they are in such bad condition Im honestly afraid to use them and won't sell them in that condition. Maybe this would have happened to any set of brakes... maybe not. Maybe stoptech uses different alloys or anodization now to help protect the aluminum, maybe not. What I do know is that 40,000 miles was a damn short time to go through three sets of rotors and two sets of everything else.

[jeremy@matrix]

I ran Stoptech 332 brakes for 4 years/85k miles and replaced them with the Alcon 13"/328mm Mono6 brakes last March. Both calipers clear my stock 17" wheels (B5 S4) and my 18"x8" 35et BBS RS-GT wheels. However, I must run a 2mm spacer for my 17"x8" 35et BBS RC wheels to clear the Alcons.

Do you think the spacer is needed due to the Mono6 caliper?

[EricPA]

Do you think the spacer is needed due to the Mono6 caliper?

100% yes. I never have any issues with the 17" RCs while running ST-40/332 Stoptech brakes.

However, I must say the clearance is sooooo close with the Mono6/328 Alcons. Meaning the back of the RC wheel just barely makes contact with the corner of the large piston on the caliper. Heck a 1mm spacer might be enough to make it clear. :-)

[jeremy@matrix]

100% yes. I never have any issues with the 17" RCs while running ST-40/332 Stoptech brakes.

However, I must say the clearance is sooooo close with the Mono6/328 Alcons. Meaning the back of the RC wheel just barely makes contact with the corner of the large piston on the caliper. Heck a 1mm spacer might be enough to make it clear. :-)

Ok, good info. So a STaSIS/Alcon Mono4 caliper would have no issues with your RC's then?

The reason I ask is that from what we've seen, usually the STaSIS/Alcon's narrower fitment (vs Stoptech for example) means that more wheels fit without issue.

[EricPA]

Yes Sir, the Mono4 would be fine.

[Jim@STaSIS]

Well I was hoping to shed a little light here, but lots of good information already contributed. Thanks all!

[jeremy@matrix]

Well I was hoping to shed a little light here, but lots of good information already contributed. Thanks all!

Shed it Jimbo!

[VMRWheels]

Where did you hear this?

Best thing to do for each application is use the brake kit template to ensure a kit will fit behind your wheel.

Definitely. We always do that just in case!

-Charles@VMRWheels
www.vmrwheels.com

[Jim@STaSIS]

Shed it Jimbo!

So much light already shed! i am blinded by my uselessness!! =]

[jeremy@matrix]

So much light already shed! i am blinded by my uselessness!! =]

So am I.

[sandspeed]

So let's say I already happen to have a set of Mono4 calipers. Is there anyone that sells the carriers and rotors/hats seperately? And does anyone know what these markings on the back of the calipers mean?
M10x1 CAR9800 J57 04 B122

[jeremy@matrix]

So let's say I already happen to have a set of Mono4 calipers. Is there anyone that sells the carriers and rotors/hats seperately? And does anyone know what these markings on the back of the calipers mean?
M10x1 CAR9800 J57 04 B122

I doubt Jason at STaSIS will sell you the other components but you can try; [email protected]