Hi everyone,
I'm new here, so bear with me please...

I'm trying to fix up this bike a bit so it rides smooth and well. I'm in NYC, and it's going to live outside on the street. I've gotten the anti theft pinheads for the Mavic wheels I put on it, and use a good Kryptonite to lock it up.

My question is about chain wheel and cranks. I'm having trouble with chain suck on the chain ring between the smaller and the larger chainwheel. I'd like to replace the chain, the cranks and both chainwheels (this time without having a chain gaurd!) without changing the bottom bracket.

. CHAINWHEEL SIZE I can't workout the size of the chainwheel - the larger one seems to be 210 mm, which I think means it's 52T, and the smaller one seems to be 40T though I'm not sure. Can anyone enlighten me?

. CHAIN SIZE Is the chain size 3/32", and what's a good quality chain to use on there to replace the one I have? I figure I might as well do this too, while I'm changing everything else.

. CRANK SIZE & TYPE The cranks are 190mm, but I'd be fine with 180mm or 185mm. Don't know if anyone as amateur as me would even notice. I'm only 6' tall anyway.

Can I replace them with a cotterless crank and chainwheel set? I like the look of the Stronglight 49D for example but have no idea if that would fit onto my bike - I assume I'd need a new barrel? help!

. TOOLS What tool do I need to unscrew the bolts on the chain wheels? Is there a tool or do I just use an adjustable wrench to get everything off including the cotter pins?


Thanks for any and all help!