TPE15: KS Zeta dropper seatpost for road bikes, plus prototype wireless dropper post - Bikerumor
Cyclocross Magazine - The new KS USA Zeta road dropper seatpost. 25mm travel, 27.2mm or 31.6mm diameter. Price TBD. Interesting for cx or gravel? Are you a dropper post fan? | Facebook
KS Suspension Zeta Dropper Seatpost for CX or Road, 30.9mm, 445mm, 50mm Travel | eBay