When you39re ripping through rolling terrain cranking the pedals one minute and getting off the back of the bike the next no seat height is just right the all new reverb gives you infinite seat height adjustment and control of your return speed in a hydraulically actuated remote package a custom sealing system means the plush and consistent feel of this seat post won39t degrade no matter how much the weather does rockshox reverb left hand drop seatpost features weight 100mm 520g