Sorry! This question is kinda silly. I should have given a little more info. I'm new to this forum and new to biking. I'm looking into getting a road bike and eventually doing a century & wanted to know around about how long it would take and also if it's done over a two day stretch. Right now I own a modefied mtb, smaller wheels and clipless pedals. I ride 23 miles every other day and it takes me an hour and 42 minutes & was just curious on how long it would take a road bike. Thanks for your reply!!!