Designed to fit mountain and hybrid bikes 18"" and over, road bikes 54cm and over. Compatible with Interchange, Interchange Transit, standard trunk bags, and panniers. Max weight capacity 25kg (55 lbs.). Taillight plate allows for mounting lights, reflectors, and the Flare belt clip. Single-bolt strut mounts allow for maximum adjustment and easy installation. Additional side stays allow for mounting of both trunk and pannier bags. Adjustable Mono Strut kits available - Black #426973, Silver #426974.