Bike shops I have visited freely allow you to test ride their bikes. My problem is that they rarely have my size to try. I ended up driving a 160 miles for a hybrid in my size to test. My road bike I never got to road test and bought it without first trying it. I didn't have much of a choice. But I did my homework first and was pretty comfortable that the bike I ordered would work.
Price of being 4'10.5"