What is a catchcan?
A catchcan is a containment device for bikes for trackuse. Not only can spilled liquids cause a crash, they also ruin the surface of the track.

Why have a catchcan? Because it’s a very awkward situation when someone comes up to you and tells you the reason they have a broken wrist is because your bike spewed fluid on the track.

Can’t I just use a soda can?
No, here’s why:
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Buy, or make my own?
Honestly when it comes to safety you should just suck it up and buy one. Available here. However, if you’re willing to do it right, are cheap, and bored, then here’s how to make your own. Disadvantage is if you screw it up you can cause somebody else’s crash, have your bike stallout, and it looks like a bomb. Advantages are that it’s slightly cheaper, and looks like a bomb.

Step 1: Start with a clean workspace:

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Step 2:
Materials. You’ll need 5″ piece of pvc pipe, end caps, brass barbs, or other metal tube like things that you can hook a hose too, and secure to the pipe, pvc glue cement stuff, zip ties and/or safety wire to secure to bike ( I used both). Here’s a picture, imagine those plastic barbs are metal, the hardware store was closed to i mocked it up with those instead. Remember that gas melts plastic.
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Step 3: Do a quick mock up on your bike. See where you want to put the can on your bike. This will guide both the size of your catchcan, and importantly where you put your barbs.

Step 4. Cut the pipe to lenth, glue on endcaps, and drill where you want to put your brass threaded barb things. If you drilled a hole just slightly smaller than the threads, they’ll thread right into the pvc for a tight fit. At my hardware store, those brass fittings were $2.79 a pop, so instead I epoxied these little bass tube things. Ugly but effective. Important: Run all carb and tank hoses to the can. Have 2 additional fittings, one on top to work as a vent. You may want to consider a larger fitting for this. And one more on the bottom that you’ll plug that will serve as a drain.

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Now test it. First lay your bike down and see if any fluid flows out. Next go for a ride to make sure your catch is venting properly. If not it’ll vapor lock your carb and your bike will run like it’s out of gas. If it’s mounted securly enough to handle a crash, holds fluid, and vents properly, you are good to go. Brrraaaaappp!