YT Postman Sattelstütze 31.6 mm 125mm Hub NEU! Dropper Reverb One in Elberfeld - Elberfeld-West | Fahrrad Zubehör gebraucht kaufen | eBay Kleinanzeigen
YT Postman Vario Sattelstütze 170mm Hub 31,6mm in München - Milbertshofen - Am Hart | Fahrrad Zubehör gebraucht kaufen | eBay Kleinanzeigen
![Dad just got a YT JEFFSY Base 2020, his YT Postman dropper freely moves upwards when pulling upwards on the seat. Is this by design or is something wrong? Functions just like Dad just got a YT JEFFSY Base 2020, his YT Postman dropper freely moves upwards when pulling upwards on the seat. Is this by design or is something wrong? Functions just like](https://external-preview.redd.it/SyzhdSalXzHodBAj_vvfm3SWfvFh7VSG2oCjXLgwMsM.jpg?auto=webp&s=f5974605ff14cb90a582ff77a54cfe42deb81a83)