I can tip toe from the seat with the post all the way down.
I am 5 ft 5 and all my bikes are either 52 or 50cm top tube with drop bars, my Mtb with straight bars has a 55cm top tube. Measuring the right size of bike by seeing if your feet touch the floor is a very old way of measuring whether the bike fits. Its virtual horizontal top tube length that counts, with bars like that you should be able to get away with a 55cm length no problem. Normally if you stop on a bike the bike will be lent over anyway with only one foot on the deck the other on the pedal. I am used to a more arse up, head down position, so to me that bike looks too small for you, but that bike is not meant to be ridden in a aero tuck so is fine.
looks ok to me , just lean to one side slightly when you come to put a foot down , unless you don't feel comfortable on it , if that's the case then yes its too big , you need to feel comfortable. I guess ive been no help at all really![]()
You've got 'standover height' on it so I'd say it's fine.
It's about comfort - if it feels ok to you, it's probably ok.
I swapped over to a slightly smaller frame on my bike because the 'lads' nestled on the crossbar of the larger one, which was fine, but I got to thinking that if I had to stop suddenly there was a chance they'd do more than nestle, and because I sometimes ride on rough-ish bridleways so I wanted a bit more of a margin for error. To be honest though I probably wouldn't have bothered has I not already got basically the same frame but in a smaller size and made with better tubing due to some exuberant ebay bidding - the larger one was fine for the year or so I rode it, and still would be.
Looks the right size, being able to reach the floor from the saddle is not an indication of fit.
Not especially. Maybe find one with a sloping top tube if there’s not a smaller modelShould it be an awkward event to stop and get on the bike?