I can get an airborne ti bike with a rockshox judy sl and rolf propel wheels along with a semi xt drivetrain for like 900, I like the wheels and the frame and deraileurs but the shock and crank and shifters as well as brake halve to go...can i upgrade the shock...can i make it air ride or do i need to just through it out...also right now when pushed into a certain degree its making a noise...this is a brand new shock does anyone know what it could be...thanks in advance...