So I posted a picture and specs of my bike and got a lot of feedback regarding the crankset I chose.
I have the Messenger chainring with RD cranks.
I've checked sugino's website and tried to search online, but the only thing that everyone always says is that Sugino 75 has proven itself among messengers and keirin riders in Japan for a long time.
Does that mean Rd is necessarily worse?
What exactly makes the Rd set a lower grade crank?
And what's wrong with the Messenger Chain Ring?