Can I fit on a 20 inch bike?

I weigh 145 lbs and I recently got a bike with 20 inch rims to work on. It s a kids bike, but I m planning on making it a low rider to use during football season to ride around in for fun (SKOL). I would NEVER be using it for actual riding around the city, I have a real bike for that, but I m mostly concerned about... show more I weigh 145 lbs and I recently got a bike with 20 inch rims to work on. It s a kids bike, but I m planning on making it a low rider to use during football season to ride around in for fun (SKOL). I would NEVER be using it for actual riding around the city, I have a real bike for that, but I m mostly concerned about it being able to handle my weight since it is a kids bike. I also wanna buy another kids bike and steal the rims off of it to replace the ones on my bike and I wanna know if that ll be an issue as well. Help :(
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