Riding a 12-23 in Massachusetts? That's hard core. I punked out and put a 12-27 on my Agilis (and don't regret it). I rode a little in Boston years ago. The roads can be tough. You'll be glad you have those Mavics.
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“Courage is going from failure to failure without losing enthusiasm." (Churchill)
"I am a courageous cyclist." (SpongeDad)