Originally Posted by InvisibleRider

So I bought the bike very lightly used off of craigslist and the bike already has the pump attached to it, 2 set of tubes and a under seat pouch. The bike also has two water bottle holders.

So what are the minimal things I should buy to get my biking started, especially keeping in mind that its cold out there. That brings a question in my mind that do you guys ride when its cold ?

I am thinking of the following list in priority from high to low:

1) Helmet
2) slacks/pants with chamois <-- but what is chamois ?
3) bike tuning
4) bike fitting.
5) clipless pedals and shoes and cleats.

???