Thanks Jen. I got the set on eBay. It's brand new. Really nice cranks. It's just that the crank arm are solid, and thus much heavier that the 105 counterpart. My road bikes use 172.5 and 170. I think 165 will be a good fit for me. But I think I will need at least a 52T large ring. I've decided to order one and just swap it out.