Do I need an upgrade?

I am 5' 7"" and weigh a bit more than you at the moment.(I just got back into this) My inseam is 29'' to 30"". I ride a 54cm Compact Road Frame (Trek 1200C). If anything it is a tad small but not enough to bother with. But that may be a function of the actual bike as opposed to the size range. I have ridden a 56cm that was too big by another manufacturer. I have also ridden a 52 by another that was just a bit too small. Per my LBS people like you and me are the hardest to fit. We could almost fit a womens bike but our ratios are off. My suggestion is to go out shopping and get sized on a few different styles and manufacturers. My bike (Trek 1200C) was only availiiable in 50,54,58 and 63 while the comparable Trek 1200 is availiable in 50,52,54,56,58,60, and 63. There are a few manufacturers that have some in-between sizes too. I truly think though that your bike is too small.

Uptown said:

I have a 52cm frame on my bike and I have a 31" inseam(measured by me so not too accurate). Anyways when I ride in the aerobars and drops my knees somewhat hit my abdomen(not bad but enough to be noticed). Anyways I am 124 pounds currently and 5 foot 5"(or 6"😉 so I'm not larger to where my stomach would hang down or something like that. My question is, should this be happening or do I need a bigger frame? If the frame is the case, is there anywhere I could get a cannondale frame (caad 4 or better preferably) that takes 650 rims. My seat is at what seems to be the correct height so it doesnt seem like that could be it. Anyways thanks for all your time.

maybe you have to look at the lenght of your cranks. if you have 172.5mm, this might be too long for you. if don't want to buy a new frame, i'd try 170mm cranks. your frame is definitly too small.

It could be the cranks like fixit said, or it could be that your bars are too low. Before investing in a new frame or even a new set of cranks, you might want to try moving the bars up a little.

Thanks for all the responses, I had my bars up an inch before and It still happened, it seemed like the adjustment in bars didn't affect it at all. Is there any way to tell the length of my cranks? Or is there a way to measure it (like from what to what would i measure)? I will probably go into a bike shop and have them check out what could be upgraded in my bike to make it right for me but I was afraid of doing that because I know sizing usually costs money($50) so I figured them checking out my bike or letting me test ride others might cost money too. Thanks again

The cranks are measured from the center of the bottom bracket spindle to the center of the pedal spindle.

Is there any way to tell the length of my cranks?

maybe it is written on the inside of the cranks.