Brake rotor/pad sweep question.

[johnscruiser]

If you don't want to remove the wheel. Measure the circumferance with a pee wee tape. Or wrap a piece of string around the circ. Of the rotor than measure that lenght and divide by pie. 3.14 that's the diameter.

Ahhh, yes yes, math class! I'll give it a go as it's pretty annoying removing the axle sliders

 

[Benny!]

maybe hold oem rotor and new rotor up together and see if they are the same size..

 

[Benny!]

This is correct. The dark edge you see on the outside of the rotors is the chamfered part, that's why it's black/looks unused.

The braketech rotors didn't come with any caliper spacers so I assume there shouldn't be any caliper spacers installed. Here's a pic, I don't really know what I'm looking for:

from this pic the rotors appear too small. but I'm no expert so take it with a grain of salt.