Unleash your ride with the BumpStop seat post. Designed to unlock adventure in your ride with 50mm of active suspension absorbs the affects of bumps, rocks and whatever you run over for a more enjoyable ride. 50mm of active suspension lets you ride further with more comfort. Adjustable preload lets you customize the suspension stiffness to match your needs. - Suitable for up to 300lbs. - Set preload for desired compression. - Comes with neoprene dirt cover - Tube and Tool Wrap not included