Hi, The tii discs and e21 323i discs are the same diameter. The caliper clearance is not an issue, it is wider by 10mm and will not interfere with 13 inch rims.

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Date: Wed, 16 Apr 2008 09:21:18 +0000
From: ...
To: ...
Subject: Re: [bmw02] Brake conversions

Cheers guys there's some interesting alternatives in there. I think Tim has confirmed my fears regarding the rim size so I'll probably be limited to what I can use. Are the E21 vented discs larger in diameter than tii ones?  I spose the real difference would be in the calliper.
I've been looking at Past Parts too if I stay with the stock route. My issue is that at least one of the callipers appears to be sticky and Jaymic mentioned my servo's arent functioning correctly. They do look like they are the only thing thats been untouched over the last 37 years! They are on my to do list for this summer so perhaps a refurb will be the most cost effective option for those. Does anyone know if they do an exchange option so that I can send off my old callipers or servos and receive ready refurbed ones? Alternatively can anyone point me in the direction of somewhere that sells refurbed callipers?
 
Roll on summer!
 
Thanks

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