Hi, I'm new to the forum and thought this place would be best to post my bike project- if not, administrators feel free to move it.
After my Trek was stolen two years ago, I didn't buy a bicycle- until now. I can't afford gas, even on my (70mpg) motorcycle so I needed a cheapo bike to use as an all-rounder. So be forewarned there is some cheap stuff being thrown around here, as well a very minor homebrew modding- please, don't harp to much on it. I know it's not a "proper" or "quality" bike, and that some compromises must be made, but when I finish it fully-equipped under $70, that's what I can do.
Okay, so here is the plan: A bike that can serve as a minor to medium trail bike, be fairly durable, do well in all weathers and times of day or night, and be used as a commuter.
Bike $15 (purchased)
Lights, ebay $8
Mirror, walmart $6
Tool bag, ebay $10
Tools (screwdriver, allen multi tool, adjustable wrench) purchased
Cycle computer- $3 ebay
Very cheap, even cheaper than a Mallwart bike if it stays on budget.
Problem number one:
Chainrings. (Note: it's a one-piece crank). The crank only has two chainrings and they aren't that different from each other (it looks at a glance like a 50/46 or maybe a 46/42). I need a "granny gear" or hillclimb gear. I have a spare very low sprocket for a one-piece crank, my question is will an old one-piece crank be able to use an extra sprocket (I would basically be adding the low sprocket right behind the current chainrings and then resecuring everything) if it was spaced correctly and the proper adjustments were made to the front derailer? I'll be trying it anyway tommorow but just wondering if anybody has even done it before.