The RockShox Reverb Stealth seatpost is an entirely new beast, redesigned from the bottom up for better reliability and enhanced performance. The smallest details were addressed, including a redesigned floating piston and every seal was scoured to find where improvements could be made. Additional bushing overlap prevents wear and tear from use and the new 170 millimeter travel option lets you set the post low for steep, fun descents. Features like an adjustable return speed are still standard, but the Reverb Stealth seatpost from RockShox is only compatible with bike frames that include routing for the internal hose. Redesigned internals for enhanced reliability and performance New 170 mm travel option Only compatible with internally routed bike frames.