There are a ton of instructables on making kitty litter bike panniers and most of them are really awesome. I used many of them as the base for this instructable which is intended to show you how to make these cheap panniers in minute detail. I haven't yet tested these strenuously yet, but they're cheap enough that even if they fall apart after three months it was still worth it.
Step 1: Materials and Tools
There are a few things in this picture I did not end up needing, ignore the tape in the blue roll, and S hooks.
You will need the following:
This project cost me $18 for the parts from our local hardware store. I had all of the tools already, and the kitty litter buckets were free.
2 Kitty litter buckets, I got mine for free. If you don't have cats try asking neighbors and community members, somebody may have them lying around.
2 Bungies, mine were 12" I believe. You want them to be able to stretch halfway around the low part of the bucket.
4 Hooks, I found mine at the local hardware store. The hooks need to have screw holes and be big enough to fit over your bike rack.
8 1/4" x 3/4" bolts to hold the hooks on. The bolts dimensions aren't important, just make sure they fit nicely in the hooks you buy.
4 1/4" x 3/4" bolts for the bungies to go to.
8 1/4" nuts to go with the bolts above. Again, don't worry if they're not 1/4" just make sure they match the bolts you buy.
8 1/4" nuts to help hold the bungies in place.
8 Large washers to help keep the plastic safe from the bolts holding the bungies.
- Measuring tape
- Exacto knife
- Wrenches that match the size of your nuts and bolts.
- Drill and bit that matches the size of your nuts and bolts.
- Eye protection so bits of plastic don't get in your eyes.
- Duct tape or electricians tape.
The rest of this instructable will walk you through making a single bike pannier. You can do both at once, or do one all the way through and do the next one all the way through. I chose the latter method because it let me figure out the best way to do each task, then put it into practice.