Quick Question

I do AM biking and I ride a 08 GT Avalanche 3.0 Disc. I have mech disc brakes.

1. What will happen if I put 203 mm rotors in the front of my bike even though the max rotor size for my forks are 185 mm?

2. Are these good rotors, Alligator Cirrus?
http://cgi.ebay.com/Alligator-Disc-Rotor-CIRRUS-160mm-76g_W0QQitemZ190288563945QQcmdZViewItemQQptZCycling_Parts_Accessories?hash=item2c4e150ee9&_trksid=p3286.c0.m14&_trkparms=65%3A15|66%3A2|39%3A1|240%3A1318|301%3A1|293%3A1|294%3A50#ebayphotohosting

3. Will 180 mm rotors in the front and back be too much for a 130 pd rider? or should I just do 180 in the front and 160 in the rear?

Thanks! :thumbsup: