Box was only opened for inspection and pictures. Any questions just ask, thank you. The front pair measures 16.5 in eye to eye with a 5.4 in travel length, the rear pair are 19.9 in with a 7.1 in travel length. Fox 2.0 Performance Series Shocks. RSX-tuned piggyback shock from Fox Racing Shox. Fully adjustable spring preload for different driving styles and ride height settings. Piggyback reservoir houses high-pressure nitrogen gas, separated from the damping oil by an internal floating piston (IFP). The separation prevents aeration (frothing) and viscosity degradation of the oil which improves damping consistency and performance fade. Large, 2.0 aluminum bodies help reduce internal pressures and improve heat dissipation, which results in consistent fade-free performance in aggressive riding conditions. Compression adjustment allows the user to tune damping rates for different riding preferences and trail conditions. Tuned with Fox Factory support on some of the most grueling trails in the United States. Standard equipment with the sport package configuration. Fox Racing Shox is a U.