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Brake Rotor Weight (Stock vs Aftermarket)?

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Old 12-07-2017, 08:00 AM   #1
silverbird
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Default Brake Rotor Weight (Stock vs Aftermarket)?

Hi,
I did a search on this and nothing came up.
Does anyone know the weight difference between stock Z06 brake rotors and aftermarket Baer Eradispeed 2 piece rotors?
I'm curious about the weight savings.
Thanks,
Silverbird

Last edited by silverbird; 12-07-2017 at 08:01 AM.
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Old 12-07-2017, 08:26 AM   #2
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Old 12-07-2017, 09:49 AM   #3
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Quote:
Originally Posted by Javvy View Post
Thanks.
Checked that out before.
Doesn't show the Baer Eradispeeds and Z06 rotor mass.
Just the factory base rotors.
Silverbird
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Old 12-07-2017, 10:45 AM   #4
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In case you're looking at other options:

Best two-piece rotors that I know of are the Coleman's. I just installed a full set from Zip and saved 32lbs of rotating mass. Pretty significant. I installed them with new Hawk 5.0 pads. Very happy so far.
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Old 12-07-2017, 10:45 AM   #5
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Most two-piece are 10 lbs lighter for fronts and 6-8 for rears. I have Coleman but there a few other brands.
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Old 12-07-2017, 12:27 PM   #6
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Great info.
I'll look into Coleman rotors.
Thanks guys!
Silverbird
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Old 12-07-2017, 01:30 PM   #7
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Quote:
Originally Posted by silverbird View Post
Hi,
I did a search on this and nothing came up.
Does anyone know the weight difference between stock Z06 brake rotors and aftermarket Baer Eradispeed 2 piece rotors?
I'm curious about the weight savings.
Thanks,
Silverbird
I have them at Front= 26.8 lbs., rear=21.1 lbs.

When you want to get serious about your brakes, please give our AP Racing options a look. Our brake kits can shave as much as 8-10 unsprung lbs. per corner (in addition to all of the other benefits)! Our kits are like having the carbon ceramic disc option without all the headaches and cost.

Last edited by [email protected]; 12-07-2017 at 01:36 PM.
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Old 12-07-2017, 02:01 PM   #8
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Quote:
Originally Posted by silverbird View Post
Great info.
I'll look into Coleman rotors.
Thanks guys!
Silverbird
Coleman are the lightest, and I think Racing Brake 2-piece are the closest second as far as weight savings go.
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Old 12-10-2017, 03:15 AM   #9
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Coleman and racing brake fronts save you 20lbs...after bump front wheel returns to pavement noticeably faster....rear Coleman save 6 lbs each..
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Old 12-10-2017, 03:07 PM   #10
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Not the lightest but good supporter of our cars

https://www.corvetteforum.com/forums...s-for-c6z.html
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Old 12-13-2017, 11:59 PM   #11
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Quote:
Originally Posted by FRCEFED View Post
In case you're looking at other options:

Best two-piece rotors that I know of are the Coleman's. I just installed a full set from Zip and saved 32lbs of rotating mass. Pretty significant. I installed them with new Hawk 5.0 pads. Very happy so far.
Exactly which ones did u get? I'm thinking slotted so I don't have a cracking issue like my stock ones but should I get heavy duty or not? Looks like even the heavy duty is a weight savings. I see they have a floating design too. I'll be doing some road course but mostly street and drag (at least for now).

Last edited by rio95; Yesterday at 12:20 AM.
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Old Yesterday, 01:19 AM   #12
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Are you looking for road race rotors for stock calipers or is your priority weight saving? I had the Coleman lightweight rotors and they worked OK but would not stand up long to road course work with stock or limited front cooling. The HD Colemans at ~ 20# each last longer. If road course performance is what you want then Wilwood makes slotted GT72 rotors that will last well on road courses.

The full brake packages that Essex offers is also great for road course work.
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Old Yesterday, 02:12 AM   #13
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Quote:
Originally Posted by silverbird View Post
Thanks.
Checked that out before.
Doesn't show the Baer Eradispeeds and Z06 rotor mass.
Just the factory base rotors.
Silverbird
The OEM rotor weight is for the Z06 and all subsequent comparisons are the Z06 rotors vs the identified aftermarket rotors. Hence the reason itís a Z06 weight thread.
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Old Yesterday, 10:36 AM   #14
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Quote:
Originally Posted by rio95 View Post
Exactly which ones did u get? I'm thinking slotted so I don't have a cracking issue like my stock ones but should I get heavy duty or not? Looks like even the heavy duty is a weight savings. I see they have a floating design too. I'll be doing some road course but mostly street and drag (at least for now).
I did the slotted. Not the HD and non-floating. Out the door was like $1467 or something shipped for all 4. I do mostly street and drag racing as well.
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Old Yesterday, 11:28 AM   #15
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Didn't we just have this discussion in-depth like a week ago HERE ?
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Old Yesterday, 10:11 PM   #16
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Quote:
Originally Posted by Todd TCE View Post
Didn't we just have this discussion in-depth like a week ago HERE ?
Awesome. Reading now.
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Old Yesterday, 10:13 PM   #17
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Quote:
Originally Posted by AzDave47 View Post
Are you looking for road race rotors for stock calipers or is your priority weight saving? I had the Coleman lightweight rotors and they worked OK but would not stand up long to road course work with stock or limited front cooling. The HD Colemans at ~ 20# each last longer. If road course performance is what you want then Wilwood makes slotted GT72 rotors that will last well on road courses.

The full brake packages that Essex offers is also great for road course work.
I mostly drag race and drive on the street but looking into doing road course next year. I'll probably do 3 trips a years 3-4 20min sessions reach time I'd guess. I'd love the lightest ones but not if they aren't going to be up to the task.
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Old Yesterday, 10:23 PM   #18
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Alright I read that thread. Now I'm even more lost about which ones to get haha. I looked up the girodisc ones but don't see rear rotors offered which would be a turn off.
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Old Today, 12:23 AM   #19
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Quote:
Originally Posted by rio95 View Post
Alright I read that thread. Now I'm even more lost about which ones to get haha. I looked up the girodisc ones but don't see rear rotors offered which would be a turn off.
Which rotors are dependent on track and driving style.

How much road course experience do you have? If you will be running in the Advanced group (ie Open passing, race conditions in the case of some clubs) and going 10/10ths....I'd pick a heavier rotor like the Wilwoods. If you're new and will be with an instructor, the lighter discs should be fine.

Frankly, for someone that's new, a 2 piece rotor is a waste of money. Learn to drive the car stock and then proceed from there. I've seen way too many new people that mod the hell out of their car only to end up with too much car, not enough driver and the resulting destruction.
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