The Blackburn Trainer and Trailer Adaptor Kit M12 X 1.0mm and M12 x 1.5mm can make your thru axle bike compatible with stationary trainers and trailer receivers or hitches.
The superlight, versatile children's bike with 20″ wheels, a safety-conscious design, BMX-style bars, and seven easy-to-operate gears for kids aged 6 and up.