Introducing the most advanced MTB spring system ever created…The PUSH ACS3. With our 3-point system you get all the benefits of both the coil and air spring systems in one package! Precision wound from the latest high tensile CrV-SI suspension spring wire, our coil springs provide the ultimate in initial bump sensitivity and traction for control through the top and mid stroke of fork travel. Available in 5lb/in increments to ensure you never have that “in-between” rate dilemma! Next, our Patent-Pending Air Bump Stop cartridge, adjustable between 5-50psi, gives you the control to dial in your level of end stroke and bottoming control without compromise.