Topic: Rotor resurfacing in the S.F. Bay area?

[JZEROE]

Anyone know where I could get a rotor resurfaced in San Francisco? There's a place I trust that charges $100, and another that I detest that can do it for $35. Looking for something in between.

Thanks,
J

[Slams77]

You may have already checked there but if not, I here Charlie's place is very reputable.

[JZEROE]

Yeah, Charlie's is the first place I went. $100.

[Raul CB750K1]

What's the point in resurfacing a rotor?

[Duke McDukiedook]

yeah, what is the point, inquiring minds want to know... 

[754]

Surprisingly good results can be had by spinning rotor in lathe or other means, and holding a sanding block against it

[Duke McDukiedook]

Oh, you mean turning a rotor?

[754]

I am pretty sure they meant a light grinding pass to refresh the surface.
 Personally, it looks ok but is not the stock finish, the sandpaper method can get them looking like new original..

[greasy j]

Anyone know where I could get a rotor resurfaced in San Francisco? There's a place I trust that charges $100, and another that I detest that can do it for $35. Looking for something in between.

Thanks,
J

who do you detest? just wondering. I live in the area. I happen to detest a place in Oakland.

[Raul CB750K1]

Surprisingly good results can be had by spinning rotor in lathe or other means, and holding a sanding block against it

Which kind of "good results" do you mean? I mean, are we talking "looks" or "works"?

[754]

Looks and works... maybe a finish that is EXTREMELY close to original, is not what some want?

[Raul CB750K1]

What I mean is that I don't see why a perfect, flat and smooth surface finish would offer a better stopping power than a grooved surface, once the pads had been worn to match.

[JZEROE]

You get a rotor turned/resurfaced/cut/whatever to make sure it is perfectly flat, not perfectly smooth. Heat will cause your rotor to warp over time, and that creates pulsing under load—particularly dangerous on the bike. But when you get the rotors cut, you don't get them milled perfectly smooth. A good rotor job will result in a nice, matte surface that really grabs back at your pads. As for why grooves are not a good thing, it's a matter of heat distribution: Thinner areas will heat up faster, which can cause your rotors to warp... and then you have to get your rotors turned anyway.

[Duke McDukiedook]

I don't think you have to worry about these 70's rotors warping, they are pretty thick.

Like 754 said, it sounds like you just want to hit them with some sandpaper as long as they are not really out of whack.