Hello everyone,

I have an '03 Giant Iguana with disc brakes. Right now most everything on it is stock and I am pretty happy with it (I did put road slicks on it for commuting). However, I am soon going to convert it into an Xtracycle and would like to upgrade and replace some of the other components as well in preparation for a cross country tour I will be doing in January and February.

For reference, you can view the stock specs of this bike.

I would like advice on which are the most sensible components to upgrade. The bike has probably about 3,000 miles on it right now. I keep it well cleaned and maintained and have changed the chain and rear cassette a couple times as well as the brake pads, but that's it. (I'm not super knowledgeable about these things yet).

I am thinking a new crank, a better seat for touring, a new cassette, new tires, and new cables are in order. Maybe a new rear wheel to better support the loads on the Xtracycle (something with more spokes? I need help here.)

What brands and parts would you recommend? What other components should I check/service/replace?

My budget is $400.

Thanks in advance,
Ben