At 125kgs you will cause a problem to most forks,but I will agree to stay clear of "air" forks. My riding partner is 110kgs, and we have settled on an old pair of Rockshox Judy XC's. By old I mean 1995, but these are elastomers,and we have the strongest ones possible fitted.He was trying Marzochhi Freeride Dropoffs, (2002 form) with the heaviest duty springs, but felt that they were still too soft for him, and that was when I decided the nearly rigid judy's were worth a try.