What do you mean 531 good or bad?
it's just a bit of tubing slightly thinner in the middle than the ends that was once used to make bikes. it was superceded a long time ago. it's a bit of old tube not a whole lot awesomeness.
@deleted started
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it's just a bit of tubing slightly thinner in the middle than the ends that was once used to make bikes.
it was superceded a long time ago.
it's a bit of old tube not a whole lot awesomeness.