The lightest infinitely adjustable dropper post available. Shortest total length of any dropper post (measured seat rails to end of actuator). 30mm stack height is the shortest of any dropper post. Low friction SKF seal. IGUS self-lubricating bushings (180, 210 & 240mm posts have an additional bushing). Cartridge does not require inflation and is 100% recyclable. Travel adjust shims allow travel customization of either 10 or 20mm (2 sets of 10mm shims included with post) . Post can be fully disassembled quickly using only a 14mm wrench, 5mm hex and 2mm hex (or OneUp multi-tool). Longer service intervals: 120 hours for clean and grease / 350 hours for rebuild. Cable actuated for easy installation (remote sold separately). 2 year manufacturer warranty