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True, always the voice of reason, so boring :tongue: , hahaha I just found it interesting that the rears fit for him. Personally I just bought the m3 adapter for the rear, that way I can go with a factory bias with stock front and rear m3 brakes, and still only need to go 16" wheels. Works for me. :biggrin: . . . . of course it will sit for a while as I gather other parts..*sigh*... |
But! I'm looking at use in a rally car here in the states where the largest tire size is 15". However, the rally wheels are usually well clearanced for brakes. I've seen some examples of 300mm brakes fitting in other chassis. So there is a good chance it will work. Not the M3 with the 312, but the 128i. |
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Ah, thanks for the catch. I'll source the correct rears Sent from my iPhone using Tapatalk |
I just bought the rear 300mm vented rotors adapters! I will update when I eventually get them on. |
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Bought the 300mm 128 adapters. Used Z4 3.0si rear calipers and brackets. 128 300mm rotors did NOT fit for me. Ended up using smaller Z4 rotors. |
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"-2 rotor from: BMW 120I 2011 BMW 125I 2009-2012 BMW 128I 2008-2013" Not the z4 rotor, for z4 it only mentions the caliper. :wink: My adapters are still sitting until I need new tires, currently on 15" :confused: ---------------------------------------------------------------------------------- Sorry @ 95///m3!! Looks like I read your post wrong! Which smaller z4 rotors did you use? Just so others can also know. Thanks! |
I have my first track session in the ti tomorrow, but I already expect I'll be ordering these adaptors and upgrading the rears. Even during the pad bedding process I felt too much front bias (M3 front brakes/stock rear). Am I correct that with the e82 rotors you get the parking brake, but with M3 rotors you do not? |
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Hi all, Digging up an old thread here, but did anyone confirm if this kit fitted under 15"s? Just removed the abs out of the rallycar, and despite fitting a bias valve im struggling to get enough rear brakes. The gravel tyres i use are 15" so needing to find a solution that fits under .. Thanks in advance |
Sorry, I’m on 17s. I can confirm the kit installed and works perfectly. |
To add some more info, I can conclusively say (and as already mentioned above) the 128 rotors do not fit as the rotor sits about 6mm too far inwards. If you still want to use the slightly larger rotor, you'll have to back mount the adapter pieces and get ~16mm spacers for them as well along with some shallow head hex bolts (interference with the caliper bracket). I spoke with Simon (srs-concepts) about the issue and he concurs with the problem. See pictures for reference.https://uploads.tapatalk-cdn.com/201...a3ef3e27a3.jpghttps://uploads.tapatalk-cdn.com/201...6e651828c4.jpghttps://uploads.tapatalk-cdn.com/201...e02aa8d05a.jpghttps://uploads.tapatalk-cdn.com/201...d57d1b199a.jpg Sent from my Nexus 6 using Tapatalk |
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Echoing what I said over a year ago. They don’t fit with the 128 rotors. I brought this to their attention with detailed photos and the solution last January. No one took the time or effort on their side to update the site or provide a solution. Meh |
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