I'm 14 years old and have been riding for a year on a Mongoose Salvo Comp full-suspension that was bought second hand and in perfect condition.
The bike is great but after riding a friend's bike, I felt my suspension was probably not good or not set up well it was not really doing the job properly. The liquid in them is oil, and they are very hard.
Do you think I should go to a bike shop to review and fix them or just buy new ones? The fork is SR Suntour, can I fit a Rock Shox or Fox Fork?
Another question is should the suspension be special to my bike model?
Thanks a lot for answering.