What are you expecting not to be fine about about it? If it wears out the sidewall, then turn the tire around. Tread pattern direction isn't that important on a bike.

If it causes you to replace the tires faster than you wish to, then you'll know you need something different.

I haven't run a bottle generator in 55 years. But I did keep the wire more tidy and not loose. That will seem like more of a safety issue if it gets wrapped up in the wheel and is too strong and doesn't snap.