Last year I broke one of the arms of a 1 piece crank on a cheap Huffy bike. I recently replaced the bike with a Trek 800, but I'd like to make the old one serviceable so i have a backup. My questions are:
1) when looking at different cranks, how do I figure out the required specs? i.e. what should I be looking for to know it will fit my bike? Or do cheap Huffy's even use standard parts?
2) I'm pretty good with following directions and figuring things out when it comes to mechanical types of things. Could I install a new crank myself or would I be better off having a local bike shop handle it?
3) Around how much would a cheap replacement be and around how much can I expect to pay if I take it to a shop to get done?
I'm trying to decide if its worth the money to get this fixed, worth the money to sell it as-is, or if I should just put it out with the trash. I am just looking for something adequate for city riding. Thanks in advance for any help.