I own a 2006 Apache150 which has done 70,000 kilometers. I have done a lot of long rides on my bike and the bike has performed exceptionally well.. But somehow i was not satisfied with the rear suspension as it was too stiff even in the softest setting and i ended up with severe back ache problem..the problem still persists with my bike.

1. now that i am working, i don't ride a lot these days.i want to change my rear suspensions to a softer one(like say the P150's)..i am willing to compromise on the handling part..i am more worried about the ride and comfort...i also thought of buying a new bike, but i do not have the finances right now..
2.so i need some inputs from you guys on which on-market suspension will be a good one and also a direct fit without any mods on my apache 150..i need a softer set-up guys..pls help..