Oversized, 6061 tubular aluminum rod for maximum strength and stability Pre-installed stainless steel hardware for quick, hassle-free installation Rear reflector/tail light mounting tab allows the use of the #3108 and #3087-2 rack brackets to mount most Planet Bike tail lights Open side rails for adjustable pannier positioning and maximum heel clearance Fits 26", 650b, 700c, and 29" bikes Distance between rack legs is 5" Load capacity 55lbs 648 grams