Is there a difference between FD rotors and S5 T2 rotors? I know the CR and weight is the same, but I also know that they use some different parts associated with the rotor (corner seals, etc..) If I wanted to use FD rotors in my 13BT, is it just a direct fit, and will I still be able to use a rebuild kit for a 13BT, or will I need to me mixing and matching parts. I realize I will need the front and rear counterweights (Will either S5 T2, or FD counterweights be the same?) Reason being is that I want that extra .5 jump in CR, and the lighter weight.

 

If it's performance that you are after, and you shall receive. I wouldn't NOT opt for the FD rotors as their price is unjustly higher. S5 TII rotors are about the same. The gears are better from the FD and corners seals some argue are better also. But essentially you can swap them out. look for a good set of S5 rotors and put that extra money into beer or diapers. Or a streetport.

 

oh and to precisely answer your question, No they are not different.

 

Hmm..well I was actually under the assumption that I could get FD rotors cheaper than S5 T2 rotors, just because they seem more abundant. Oh well, may just use S4 N/A rotors. They arent quite as light, but the compression is about the same. Thanks for the response.