Search and you shall find:

http://www.nsr-world.com/tuning/250-tuning/suspension/

http://www.nsr250.net/forums/viewtopic.php?t=10369&sid=97e9ea679a665ecd24d2a63c5ed18f1b

Pyramid parts seals were ok, all balls looked the best (haven't seen them in long enough to know how good they are).