BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
 





 

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      11-05-2008, 09:21 AM   #23
mikeo
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Are the Performance rotors the floating design?
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      11-05-2008, 09:54 AM   #24
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In the UK brochures, the front caliper is not listed as available for the 135i, as there is no performance increase from it. Obviously the discs can be fitted...
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      11-05-2008, 10:04 AM   #25
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Quote:
Originally Posted by E66 View Post
Thanks JohnnyTT.

Seems like the guy in the first thread said that there will be minor differences noticable only if you push the brakes to the limits, like in a track. So there is a slight difference in the front disc brakes, however, since the rear brakes aren't slotted/cross-drilled, it looks as if it's the same as the stock brakes at the rear.

Here in Singapore, the brakes also cost about 4k+ SGD, which is about the same as aus$. So I'm starting to wonder if it's worth it for the money for such a slight performance increase.
Glad I could help. I'm going to bet there is no difference and the guy from that thread was probably just feeling a difference from breaking in the freshly installed brakes.

I did ask Dan from united to try and find out more info for us.
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      11-05-2008, 12:00 PM   #26
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The brake kit, IMO, was made for the 128i to upgrade to the 135i brakes.. for the price vs brembo bbk, it's unbeatable. As far as upgrading from 135i stock brakes to the BMW Performance ones, I cannot confirm whether you'd see noticeable difference. From what I believe, the rear calipers are two piston instead of one. The main selling point is that you get all these parts: calipers, pads, perf front rotors and rear rotors for the price of around $1,700-$2,000. Will it make a huge difference? I'd vote no. Does it look better? I'd vote yes. The brake pads are confirmed to be the same on the stock calipers as with the performance calipers. If it was me, and this is only me, I'd buy the $210 worth of rotors (+ shipping) and put the car on the lift for a few days. Those stock calipers would come off, and be powder coated a new color. Rotors would then be put on, and shazam!
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      11-05-2008, 01:01 PM   #27
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Quote:
Originally Posted by Dan@UnitedBMW View Post
From what I believe, the rear calipers are two piston instead of one. T
So 135i doesn't have a 2 piston rear break as standard?
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      11-05-2008, 10:24 PM   #28
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Thanks Dan for the information, I thought that the 135i comes standard with 2 piston rear calipers?

I did not know that the rotors were available for purchase seperately, in that case, I'll see if I can contact the BMW dealer here for the rotors. The colour doesn't really matter, i want it more discreet anyway.
I agree with JohnnyTT that the guy probably felt a difference because of the freshly installed brakes.

To mikeo:
I'm not sure if it's a floating design, but so far I only know of the m3 e92 to be floating design, but I don't really know about the other bmws.

To squeak:
I'll have to pay extra, that's why I want to find out as much as possible before i get them.

EDIT: Dan, do you happen to know the part # for the rotors? It would help a lot if you could give me them so I could give it to the dealer over here.
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      11-06-2008, 12:12 AM   #29
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I saw that too before i purchased my car. False advertisement!!!
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      11-06-2008, 08:29 AM   #30
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BMW Performance Rotors Part # 34 11 6 786 392

$110 each from us
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      11-08-2008, 10:55 PM   #31
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Thanks Dan,
I'll certainly check if the dealers here can bring it in for me.

Thannks to all those who helped in this thread.
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      03-28-2012, 01:20 AM   #32
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anyone know if the 135i brembo brakes would fit on 120i? do they share the same platform in terms of brake sizes and scale?
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      03-31-2013, 12:28 AM   #33
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Sorry to resurrect such an old thread but its spot on to what I wanted to ask.

Has anyone confirmed if the BMW Performance Calipers are differently constructed than the standard 135i brakes? I've read they're designed as an upgrade for the 130i and nothing more, however, the kit includes the cross drilled slotted rotors in the front and according to the diagram not for the rear (link below under 'Rear Kit' suggest that you can option in the cross drilled slotted ones). Obviously the calipers are painted differently as well.

Front Kit:
http://www.bmminiparts.com/DiagramVi...986&MOSP=52061


Rear Kit:
http://www.bmminiparts.com/DiagramVi...988&MOSP=52061


If the brake calipers/pads etc are the same, then all a 135i owner would need to do is change the rotors to the following:

Front - Ventilated-perforated brake disc, 338X26
Part No. - 34 11 6786392
http://www.bmminiparts.com/PartDetai...8-E50C15C66BF8

Rear - Brake disc, ventilated, w/holes, rear, 324X22 (These are not part of the rear brake kit oddly enough)
Part No. - 34 21 6795754
http://www.bmminiparts.com/PartDetai...8-36778422BF0E
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      03-31-2013, 05:32 PM   #34
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its just different paint than 135i brake system. The rotors are dimpled & slotted. I dont know if the rear is also dimpled.
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"The 1-series is the last car that BMW engineered before the Germans, as a car-making culture, fell out of love with driving." - R&T 2013 135is
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      04-01-2013, 05:31 PM   #35
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Good to know we already have the same brakes. They should have made sure this was clear as it's not. Rotor upgrade is simple enough!

I listed the two sets of drilled/slotted rotors (front and rear) above. Weird how the 'full' brake kit only includes the fronts as drilled and not the rear.
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      02-19-2017, 04:41 AM   #36
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What size is it?

I have a question on the size of the front rotors. I have a Dec 2012 135i M Sport with the silver painted 6 pot calipers. All the information I can find say the front rotors are 338mm. The problem is that my car has 330mm rotors and these are the original ones that came on the car.

All of the sites I have been to show that correct looking caliper but I am worried that if I buy some rotors at 338mm they wont fit in the caliper.

Has anyone come across this problem before?
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      02-19-2017, 02:28 PM   #37
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That would be very strange. The pad would not be fully utilised and it would make a horrible noise. Post up a pic?

Is the centre hat aluminium riveted to the actual friction area?
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