New build for a newbie questions
I am in the early stages of having a bike shop build a custom bike for me and have several questions related to this venture. I've spent the past 4 months looking at a number of bike styles and have narrowed down the look I like. I'll admit I am pretty clueless so if any of my questions appear ignorant you'll know why.
At 6'1 and 175lbs is a 450-650 too small? The bike shop keeps telling me to look at 750 to 1000+. As a new rider with just a 3 day beginner course at the local college under my belt their recommendation honestly scares me a bit. That seems like a lot of power. I'm a 40 year old guy who plans to ride the bike to work (30 min commute) during the warm weather and take short trips (1-2 hours) occasionally. Speed is not my thing but rather style and reliability.
The design of the bike (see similar image below) I'm having built is rather simple looking--to me, at least--as I'm a proponent of the less is more school of thought. However, I want it to be street legal. I have yet to find any information on what a bike must have in order to meet that criteria within IL.
One last item is related to tire sizes. The bike designs I lean toward have from and rear tires which are of the same size. Are there any non cosmetic reasons why this is exists? And, if so, what are the pros and cons?
Thanks to all who have time to send me some pointers!