Plastic guards are all very well for walkers but they don't stand up to sliding down a hillside with a bike on top of you.
To this end, I made the Ultimate Banana Guard and it works.
In the video you will see that it resists, impact, abrasion, attack, squashing and not least, for the sake of fun, fire.
Please vote if you like this Indestructible.
No bananas were harmed in the making of this video.
Step 1: Cutting the tube.
The curve was perfect.
I measured it against a few bananas and cut a suitable size.