ok...now which one for the rear?
btw Martensitic Steel (AISI 420) is also known as Stainless SteelMy father works in a company that performs tests to weldings and metal fatigue in big structures (bridges, railways...) here in Portugal and Spain.
I ordered one of this Chinese rotors and gave it to him for him to test.
I posted the results on the Portuguese Hayabusa Forum.
it is written in Portuguese but I'll can sum it up by saying that the "Arashi" rotor passed every single test. After heating, cooling, twisting, pressing and chemical abuse all came out fine.
One test that is particularly interesting is rotating the rotor in a machine that reads changes in a magnetic field crossed by the rotor thus enabling to "see" into the rotor to check the uniformity of the metal alloy.
By the way, the metal the rotor is made of it's called Martensitic Steel (AISI 420), just like the Galfers, Braking Sk, EBC, etc. .
I've surfed the web and found everything: warped Arashi rotors, warped OEM rotors, warped Galfers, cracked Brembos, you name it. I guess these Arashi rotors are as good (or as bad...) as the others.
On a final note, I just wanted to say that you rarely get "what you pay for". Life does not work like that at all. Sure, the rule of thumb is that the more expensive something is, the better.
But for this type of simple, mass produced items, the final price little has to do with production costs. It has more to do with desire of ownership and pose value. It doesn't matter if a rotor- any brand -costs $1 do make if people are willing to pay $1000 for it.
I'm sure that if I erased the Galfer letters from a rotor set and engraved Chinese rotors with the Brembo logo and gave them to some one in this forum do drive-test them in his bike he would rave about the "Brembos" and trash the "Chinese".
Sorry for the rough English.