The Redshift Kitchen Sink handlebars have enough space for Rocky and a Restrap Rando Bag Large! He just so happens to fit (and like it) inside the bag. I put a little towel in there to soften the ride, and the bag has plenty of space for his bowls, food, my food, doggy bags, a strap, couple of spare tubes, mini tool, tire levers, dog leash and that without pressing things in.