Upgrade your Series 1 Buddyrider® with the Flex-Arm® and Series Two Receiver combo! This kit allows you to enjoy the enhanced versatility of the Flex-Arm®, designed for small-framed bikes and e-bikes with frame obstructions. With adjustable positioning and improved compatibility, it’s the perfect solution for those looking to elevate their biking experience and make every ride with their furry friend more comfortable and convenient.