Fox Factory Ifp-R QS3 Monotube Shocks For Harley Touring FOX's Ifp-R rebound adjustable design, combined with vehicle specific damping and linear spring rates gives you a confident connection to the road while soaking up the bumps, mile after mile. With an internal floating piston to separate the nitrogen gas from the shock oil, the Ifp-R shocks will maintain damping control no matter how long you ride. The IFP-R's wide range internal rebound control also has 12 distinct clicks, allowing you to tune the exact rebound rate to balance out your spring preload and keep your rear wheel firmly planted on the road. Features: Gas-charged mono-tube, with Internal Floating Piston and Rebound adjustment (Ifp-R) QS3 - 3 position quick switch rebound adjust 1-1/2 6061-T6 aluminum type III hard anodized body 12-position externally adjustable rebound Spring preload setting guide marks Fully rebuildable and revalveable Advanced high-flow, deflective disk, velocity-sensitive damping 5/8 low friction, super-finished hard chrome shaft Note: 14 shocks require a shorty style exhaust that ends before the lower shock mounting bolt for clearance.