After 2000 mi. my 05 shorty suspension was completely wasted. Cracked slide rails completely destroyed w arm even broke the weld where the transfer rod mounts to the bottom of the w arm. Had to rope it up to get home on the last ride last year. I had done many modifications per the guys on the totally yamaha site but it still grenaded. Yamaha was offering upgraded parts like what was on the 06 apex's but the dudes up in canada that were getting some miles on the apex's were reporting that the suspensions were failing but it was lasting longer than the 05 parts. The bottom line here is if you are heavy (200 lbs. +) and you like to ride aggressively the suspension will not hold up. Put a fast m-10 in mine this fall but have'nt been able to ride it yet. The word on the m-10 is you lose a little top end but the ride handling and especially durability are great. I am not a lake racer so i don't care if i lose some top end. All i want is a skid that does'nt fall apart when i do some aggressive trail riding. I ride with my son (rev 800 adenalin) and my brother (f-7 ext) and they don't seem to have skid problems. I still would not trade my rx-1 for any other sled. The smoothness , power and economy of the genesis engine is worth any other problems i've had to deal with. Hopes this helps.