Reply With Quotethe 850i comes with 16" wheels as stock, so i assume they fit okay. i could be wrong mate.
Major Contributor
850i disks/ caliper on 16" wheels
I would like to install 850 brake system on my dads car which has 16" rims, will it fit? or min is 17"? thanks
2 Grand Master
the 850i comes with 16" wheels as stock, so i assume they fit okay. i could be wrong mate.
Major Contributor
Not all rims are the same. Maybe it fits the stock 16" rims, but that doesn't mean it will fit some other design. When doing a big break upgrade it's always the safest bet to go with the 17" rims - they also offer better cooling cause the calipers and the discs are not a tight fit inside the rim. But, I guess you won't be sure until you try...Originally Posted by BigKriss
BMW E34 528i, M52B28 + M50 manifold, Remus exhaust, ///M Parallel Spoke 18" rims
Grand Master
The 850 single piston...
... brakes fit under BMW 16" wheels. The 4 piston setup may require 17" wheels. The 4 piston setup came on the 850CSi and some 840s.
Jeff
Bellevue WA
90 535iM - not much stock remains. 3.7 liters, ported head, cammed, 3.73 diffy, M5 brakes, MAFed, yadda yadda yadda
86 Porsche 951 - Track Toy
Major Contributor
I've read somewhere that both setups offer the same breaking performance. regardles of the number of pistons?
BMW E34 528i, M52B28 + M50 manifold, Remus exhaust, ///M Parallel Spoke 18" rims
Big, Big Time Poster
Both types of E31 brakes will fit under certain types of 16" wheels. I have fit the E31 4-Piston Brembos under: 16" E38 bottlecap wheels; 16" E31 turbine wheels and 16" BBS RK wheels.
As far as braking performance, I've had both the E31 single-pistons and the E31 Brembos. The Brembos are much easier to modulate. As a bonus, the aluminum Brembos are MUCH lighter than the cast iron single-pistons.
Drew Zacharda
6-speed Touring
Drew Z
Formerly 540iT/6, now . . . 3, 5, 7
Major Contributor
well at high speeds the 4pistons are way better than the single, i have the 4 pistons on my e34 535, still the single piston is powerful and offers grate braking than the OEM system on either e32 or e34.
This has been great info. I've just finished a complete engine rebuild on my M5 now a 3.7 liter. I've ordered the Dinan Stg.2 and some K-Mac camber plates, so the brakes are next. I've been leaning towards the 850 Brembo's mostly because of their weight savings and pad selection. A friend has the N-ring brakes with the 345 rotors and he has to have track pads custom made.
Greg S.
Alpina B10 Biturbo
Big, Big Time Poster
As big & beautiful as the N-ring brakes are, their cast iron calipers weigh more than twice as much as the E31 Brembos. If you do serious track time, Hawk pads are readily available for the Brembos -- Blue, Black, HT-10 and HT-14. However, if you plan in installing the E31 Brembos on an M5, you'll need to modify the rotor to accomodate the rotor locating pin in the M5 hubs.
Drew Zacharda
6-speed Touring
Drew Z
Formerly 540iT/6, now . . . 3, 5, 7
Major Contributor
what's the difference between the 4 piston BMWs and Brembos? braking wise, I know they have different weights
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