Set of 4 bearing housing, ball bearing block 8/10/12/20 m., 12mm : Amazon.de: DIY & Tools
Amazon.com : Reverse Components Qr Rear Adapter 10 x 135 mm : Sports & Outdoors
Pitlock Set 20B Thru Axle 12 x 148 mm (178 mm) & Pit Key for Boost Rear Wheel with Maxle Mount (M12 x 1.75 Thread) Lock Multi-Coloured : Amazon.de: Sports & Outdoors