For the most part, I enjoy fiddling with bikes more than riding them. I'm really a big baby and I hate riding up hills. That being said, a bike is a great thing to have when you need to get across campus. I recently bought a 20" folding bike and it's a great little bike, but it didn't come with fenders. What did you expect for $330 shipped? I put up with the mud spray for a month but enough was enough and I decided i needed to fix the problem.
So off to my local bike shop and sticker shock! $44 for a bit of plastic and some mounting hardware! I knew I could beat that AND have make it look better. Good thing I planned for this occurrence in advance. So off to Ace hardware across the street and 4 minutes later, I have a spool of 14 guage steel wire and a .125"x1.5"x4' strip of aluminium stock. I already had the mounting hardware I needed. Total cost? $13
I made the fenders and didn't document the process, so I'll walk you through with the pictures I have and draw the rest.
I'll walk you through the process of making the rear fenders and then give a guide on how to do the front ones.
Let's get started!
Step 1: What you need...
Now, I labeled the list required and optional, but you really don't need most of it. Remember, this is instructables. If you're feeling ghetto skip to step 10
3x M5 machine screws (can be socket, phillips, flat, torx, w/e you can find and have a driver for)*
6x Washers (or more)
1x Aluminium flat stock (3mm/.125" thick)**
1x Spool of 12 or 14 guage steel wire***
A hand saw or band saw
Flat file (you can use any kind you want, but flat is easiest)
Drill bits (1/4" & 3/32")
Sand paper (120grit)
Center punch (a wood screw will do)
Some puddles to test your shiny new fenders on!
* Depending on your bike, you may have trouble with really long screws. I would suggest something between12mm and 16mm or you may run into your hub or kickstand mounts.
** Depending on your wheel size, you may need more than 1 piece of aluminium stock. My wheels are 20" so I only needed one 4' piece for both wheels.
*** how much you need depends on your wheel size, but a good rule of thumb is the radius of your wheels times 5.