dinas29

Hey everyone, i need your help on this one:


Should i keep my R1 concept slotted/drilled disc brakes during winter?

Someone told me about some story that they could "crack" a bit between the drilled holes!!


Is it true or not?


Thanks for any advise!

Wangspeed

iTrader: (2)

Drilled rotors are a gimmick. The need for drilled rotors disappeared decades ago. They crack if exposed to too much thermal stress, like on track, or bombing down a mountain. Repeated exposure to severe hot/cold cycling could also cause them to crack.

army_greywolf

iTrader: (2)

good god...but wait, there's more.

If your rotors are crossdrilled and slotted you can avoid the dreaded fracturing of the rotor.

Depending on the vendor and the process you can have your rotors heat treated, a process where they are heated to an elevated temperature several times over whilst being brought down to a lower temperature in gradients over the period of a couple hours, jet engine parts are treated this way for the EXACT SAME exposure reasons, uneven heat cycling, torsional and centrifugal stress, you would need to find a shop with a good furnace that knows how to treat the type of metal you bring them, and then when they are done, obviously you'll need to recoat the rotor vanes and so on if that's what you want, otherwise, they WILL need to be turned ever so slightly to accomplish two things (take off the oxidation that's not rust it's the sharply crystallized surface material often just called slag, and to ensure absolute straightness).

Erf, sorry, it means YES you can use any rotor you want, without worry in 99% of cases.

And on the use of and need for, I'll concur with Wang for 99%ers.

vahdyx

iTrader: (7)

Colorado sucks, but I love it here. We get 75F during the day then 10F in the winter night today then tomorrow we'll get 80F around noon, then 40F and snowing during rush hour then 0F overnight.

Then snowing all morning and it'll be 75F in the afternoon.

So if wangspeed is correct, I cannot get drilled rotors.

I wonder how my plastic charge pipes will do

kxrida2000

iTrader: (12)

local honda kid near me drilled his rotors with a 3/8 drill bit thinking it would help...trust me he didnt like the outcome just figured i would throw that out there

Iam Broke

iTrader: (10)

I like slotted only to strip the water off faster in the rain, that's about it. That'll be an upgrade someday. R1 Concepts.

haymakercobalt

Bwahaha

skeet skeet bro

Drilled rotors for the purpose of releasing the gasses that build up under the pads under hard braking are no longer needed, but on cars with larger rotors its still an effective way to make them a little lighter. That's why you still see them on Lambos, Z06s, etc.

stealthy1ss

iTrader: (1)

Drilled rotors are garbage. If you look at real race cars you will never find drilled rotors on them. Only slotted or solid.

Wangspeed

iTrader: (2)

And the steel z06 rotors crack. So does Porsche, Ferrari, etc. You name it, they crack when you get them really hot over and over. Now if you're talking about the carbon ceramic brakes, that's a totally different situation. The z06 carbon has the carbon/ceramic brake setup off the zr1, and that is a huge step up. Pretty much all of those high priced cars have the carbon/ceramic brakes as an option now.

07MetallicSC

iTrader: (16)

My stock cross drilled rotors on my streetbike have been fine for the past four years from cracking. And I will ride all winter as roads are clear and temperature is decent. Exposed to cold and no problems