Originally Posted by jimmyodonnell

My summary recommend is to go with the Medium, but read on and see what you can learn / benefit from my recent experience.
I just bought two Sirrus X4s and two Sirrus X3s, so I've had a lot of sizing / handling recently on these models and I can advise that their sizing runs a little bit large.

My son is just a hair under 6 feet tall, with an inseam of 31.5 inches and I bought him a Large. If he was ANY smaller, he would not fit the Large. I was considering sizing him down to a Medium, but he cleared the Large frame in a standover wearing flats / sneakers, and the cockpit reach is easy / natural for him . . . also he's 14, so he's growing further into the Large sizing as we go forward. I did not want him outgrowing a Medium in a year, and I'm looking for another $1500 bike next summer.

And I bought myself a Small after sizing and riding both a Small and a Medium. I'm only 5'6", and the Specialized sizing chart places me in a Medium, but I rode the two sizes on consecutive days and it was a big difference / easy choice for me to chose the Small.

As far as your option for return goes (if you reconsider after receiving the bike), of course ask your store location if they have any special terms changing the return policies during the virus. I learned in purchasing through Specialized website as Click-and-Collect where they ship your bikes to a Specialized retailer you select, that Specialized has 30 days no-questions return on Click-and-Collect HOWEVER one local bike ship I was considering as the destination is not allowing ANY bike returns right now, I guess it's to do with risk of infection etc. I verified another retailer who had no such restrictions on their current return policy, and I selected that shop for the click-and-collect. We've had no issues yet on any of the 4 bikes.