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Super Lightweight Fixie and Single speed bike mudguards

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Picture of Super Lightweight Fixie and Single speed bike mudguards
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This instructable takes a huge chunk of inspiration from a pre existing lightweight rear mudguard that is already commercially available. I have adapted the design slightly and, in addition, created a small guard for the front wheel. 
These mudguards are small enough to keep in the bottom of your bag for whenever you may need them AND this whole instructable cost me only £1!!!
 
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Step 1: Find your material!

Picture of Find your material!
You need to find a suitable plastic material with which to build your mudguard. I considered using the thin plastic sheeting that document folders are constructed from however i decided it could end up being a little flimsy. I found this multi pack of flexible kitchen cutting boards in a super market for £3. The material that they are made from is flexible, strong and light. A single cutting board will be enough to make both front and rear mudguards. 

Step 2: Mark out the rear mudguard

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I managed to source the outline of another popular lightweight mudguard and used this as a starting point. I lengthened the design slightly. The final stencil will be uploaded in the final step of this instructable. I used a Stanley knife to make the cuts although you can get away with using scissors. 

Step 3: Hole punch and score

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I used a normal hole punch to make the holes and then realised that I should have just used a normal drill bit as the holes need to be quite a bit bigger. These holes will clip onto the underside of your saddle. 

I chose to score a line down the middle of the mudguard on the top side. This scored line will allow the plastic to flex upwards much like a conventional mudguard. 

Step 4: Mark out and cut the front mudguard

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There should just be enough material left to create the front mudguard. I used a very similar design as the rear guard. As there isn't anywhere useful on the front forks to attach this one to you'll have to use a rubber band to strap it to the underside of the bike frame. 
Make two holes and link them with a single slit. The rubber band will loop through these holes and over the frame. 
darrenhall1 month ago

Great instructable - long live La! Fixie!.

about_time 3 months ago
I just used an empty plastic Celebrations chocolate tub. It did say 'reuse me' on the side.
fincape6 months ago
Nice one, thanks!
blacky947 months ago
The design works great, thanks!

I tried it with the Drälla chopping boards from IKEA (http://www.ikea.com/us/en/catalog/products/50153123/?query=dr%C3%A4lla). It worked great for the first few weeks, but at some point the platic just broke at two points because it was under constant tension. Now I made it out of a plastic file which has a much thinner plastic. Lets see how that works out!
Mr Chutney (author)  blacky947 months ago
Thats fantastic!
Always good to hear of people having some success. The plastic file is a great idea, I imagine that it's a better long term solution. The handy thing is that they only take seconds to make with a thinner material so it doesn't really matter even if they do brake! Winter is swiftly on its way so I will be making much more use of mine as well. Well Done!
gonzhi19618 months ago
This really works!!! Thanks for the idea!
gonzhi19618 months ago
It's rainy season now here in the Philippines...this idea is just what i have in mind! good thing it turned out I have some flexible kitchen cutting boards stored in our kitchen cabinet...I will post soon if the mudguards really work well...am excited to start on this project!
Mr Chutney (author)  gonzhi19618 months ago
Fantastic!
Can't wait to see how you get on with it. Best of luck with your build!
velochk9 months ago
Have you thought of using zip ties instead of rubber bands? Id prob keep mine on all the time cause it rains here too often. Great idea! Thanks!
Mr Chutney (author)  velochk9 months ago
Excellent suggestion, I like to remove mine but zip ties are fantastic for this sort of thing. Cheers!
Advar9 months ago
Oh, sweet snaparoni, soons I get home after my McDinner, I'ma gonna try this with some of the stiff ol' roof rubber I've got! Thanks :)
Mr Chutney (author)  Advar9 months ago
Excellent, post some pictures when you're finished!
GarGon10 months ago
excelente idea!
Mr Chutney (author)  GarGon9 months ago
Thank you very much GarGon!
ZaneEricB10 months ago
Well played. I love flexiboards, they are very versital !

Great job...now i wish i hadnt sold my fixie :(
Mr Chutney (author)  ZaneEricB10 months ago
They are fantastic aren't they! I never worked with it before but it certainly did the job.
Mr Chutney (author) 10 months ago
Don't forget to vote for me in the 'Great Outdoors' and the 'BIkes and Wheels' contests!
Thank you
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