Hey @mattpedals! It looks like you set your blog’s Custom CSS to the following:
iframe { width: 100%; height:350px; }
That will automatically make your Komoot tour iframe always appear at 350px, regardless of what you put it in the iframe. If you remove that from your custom CSS you should get the result you want.
I also just wanted to say, cool cycling blog. I don’t think I’ve ever seen it show up on the read.write.as feed though. So I’m thankful I found it here.