Nitrogen-charged steel monotube damper bodies with hard chrome-plated shafts. Dual-rate progressive wound springs for a smooth, comfortable ride. Adjustable spring preload. Ride-height adjustable, +/- . from size listed. Chrome shocks feature chrome springs and damper bodies with clear anodized end caps/eyelets. Black shocks feature black springs and damper bodies with black end caps/eyelets. Mount with existing hardware. NOTE: Lowering the motorcycle will reduce ground and cornering clearance. NOTE: Before purchasing or attempting to install shocks that are different than the OEM length, confirm that your wheel travel can be altered without causing clearance issues such as swingarm/axle to exhaust contact, as well as chain/belt guard or tire contact. NOTE: OEM upper shock mount covers will not fit with these shocks.