I bought a Schwinn Sidewinder from Walmart last night in a desperate attempt to get some exercise. I took it home and rode intensely for an hour, it was fantastic! I may be wrong, but I see bicycles as modular and upgradable and am hoping some of you might have thoughts on some initial upgrades that I could invest in (i.e. seating, tires).
I saw this question ( How can I get started riding without spending a fortune (too much)? ) and the very first comment was a bit disheartening "Wow! $500 is a cheap bike...". I hate to say it, but where I come from, people might buy 5 bikes for $500!
Assuming I'll spend $50-$100 over the next year, what kind of upgrades can I consider? Keep in mind I'm a penny-pincher, but very enthusiastic and wouldn't be adverse to finding parts at a Goodwill or other consignment shops.