Don't laugh at me because I am still a bicycle noob, but I need help selecting a proper front derailleur. I was transferring components to a different frame and broke the clamp on the old derailleur. Since it was old and crappy I decided to buy another one. My bike is very entry level road bike, but it has Shimano 105 components on it. I have been looking at Shimano Ultegra, but its description says that I need a 10 speed setup, but I only have 7 speeds. What would be your recommendation for a derailleur in $40-50 range?
Crackset is 53/39.
Seat tube 34.9mm. It must be clamp-on, there is no braze-on notch.
Back wheel has 7 stars.
Thanks in advance.