How to tighten cranks

[johnowen]

Hello,
I recently started BMXing, and after a few sessions, I noticed my cranks came loose. I've removed the lock nut and can tighten them, but they still have play and spin freely. Any advice? I plan to get new cranks soon, but I’d like to ride in the meantime. Thanks!

[rubiter]

The characters' actions are frightening despite how ridiculous, cartoonish, and inflated they are.
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