I'm pretty sure it'll take a 110. I went a step further and ground out my swingarm to accept a 18mm axel shaft, instead of the stock 15. This allowed me to fit a CB450 twin rim on the back which has a much larger drum brake and is wider that the stock. I have a 120 avon roadrider on the rear, and I must say it looks (and handles) much better, also brakes faster too.