Thread: rotor size
View Single Post
      06-09-2006, 01:17 AM   #1
hkj
Major
 
hkj's Avatar
 
Drives: BMW
Join Date: Mar 2005
Location: USA

Posts: 1,205
iTrader: (0)

Garage List
2006 330i  [0.00]
rotor size

I was checking out Dinan's Brembo BBK and I noticed something: the rotors on the E90 are larger than those on the E46 M3:

E90 330i: 13 inch front, 13.2 inch rear
E46 M3: 12.8 inch front, 12.9 inch rear

Now I realize bigger rotors alone doesn't give you better stopping power, so why the bigger rotors? Why do BMW feel the need to put larger brakes on the E90?

Also, as far as bias is concerned, why do they put bigger rotors in the rear? Don't the front brakes do most of the braking?

-hkj
__________________
Factory [ 330i | SG | Black/Alum | STEP | ZPP | ZSP | NAV | PDC | CA | Folding Seats ]
OEM [ Spoiler | Sunglass Holder | Illum. Door Sills | iPod | Split Armrest | ///M-Sport Kit | CF Diffuser | ///M3 Steering Wheel | Pearl Trim Cover | ///M3 Footrest | SS Pedals ]
After Market [ Bridgestone Potenza RE-01R | CF Strut Brace | Koni FSD | Eibach Pro-Kit | H&R Sway Bars (F+R) | LUX 4.0 | OSRAM 6000K HID | Clear Turn Signal ]

Last edited by hkj; 06-09-2006 at 01:19 PM.
hkj is offline   United_States
0
Reply With Quote