If you're looking to upgrade the sensitivity and suppleness of an older Pike Fork, replace your existing Solo Air Spring with the RockShox Pike A1-A2 DebonAir Air Spring Upgrade Kit. This DebonAir Upgrade Kit is intended strictly for Pike Forks from 2014 to 2017, overhauling the previous Solo Air Spring with the increased sensitivity and small-bump compliance afforded by RockShox's improved DebonAir Spring. It slides directly into the left fork leg's uppers and allows you to customize your Pike's travel to your intended use on the trail, whether you're seeking something a bit longer for technical terrain or a touch shorter for fast flow trails and tamer terrain. There's options available for 26, 27. 5, and 29-inch Pike models (check drop-down selection for different sizes).