Limotec A3 Height-Adjustable Vario Seat Post with Soft and Hard Suspension in 30.9 / 31.6 Diameter with Hub 40 / 80 / 100 mm : Amazon.de: Sports & Outdoors
Amazon.com : Thule Yepp Nexxt Mini Seat-Momentum, One Size : Sports & Outdoors
Amazon.com : Bobike Go Frame Mount One Size : Sports & Outdoors