Rigid 90's MTB frame with Single speed crank. Please help.
 

I am in the process of converting an old 1993 Giant Iguana Rigid MTB into a single-speed, mixed-terrain cruiser.

The original bike had a 7 speed triple set up but I wanted to use a large ring track crank (Sram S300 courier) only to discover that you cant use a track crank on a MTB frame because the chainring hits the wide chainstays before you even finish tightening the BB. Newbie mistake.

Instead, I thought I would use the Truvativ Stylo 1.1 SS MTB crank but see it only comes with a small 32t ring. (I would like a 48t to maintain the gain ratio with my 18t cog)

My questions are:
What is the largest ring that will fit on the outside of the Stylo spider and not hit the chainstays? Anyway of knowing this without buying it first?

I noticed a that there is a triple version of the stylo with a 44t outer ring. Are these individual rings or are they riveted together like my old triple? If so, I can get the triple and chuck the smaller rings. (Although I'll need a small cog)

Do they make a 44-48 tooth Single speed chainring (tall teeth, no ramps and pins) that will fit on the stylo crank? (104 BCD)

I will seriously appreciate an answer to any of these questions or any other help you can provide.
Thanks

Salsa Cycles makes a 104/48T chainring.

You'll have to take some chainline measurements and make sure your frame is straight to ensure it'll work.

http://www.sheldonbrown.com/chainline.html

Thanks, are those 104/48t rings single speed or ramped and pinned?

And does anyone know if the Stylo triple has separate rings or are the three rings riveted together?

The Salsa chainring has no pins or ramps, but the teeth are a bit shorter than a true SS chainring.

As far as cranks, I'd just get a set of Deore LX FC-M582 cranks from Jenson USA and be done with it.

+rep for mad quads

LOL, no kidding!

Thanks, but how is that being done with it? It has the same size ring as the Stylo triple. Why would it be any better fitting than the Truvativ?

Sorry, not down with the leetspeak. What does +rep mean?

The LX crank is proven and probably costs less. It would be easy to swap the 44t with a 48t outer chainring.