Rear tires do wear faster since they’re the ones pushing you along.
Rotating tires is kinda-sorta frowned upon as it means you’re deliberately putting a more worn tire in the more important position.
I MIGHT do it If for some reason I have both tires off at an early stage of wear. Or I might not.
Among people who run the same size front/rear, the most common approach seems to be to put a new tire on the front and move the old front to the rear. Others will simply replace both as an inexpensive way to some peace of mind.
Bald tires on a bicycle used for road riding isn’t much of a concern as such, as bicycles can’t hydroplane. It is however a clear indicator that there is less rubber between the road and the tube, which increases the risk of flats by some undetermined degree. Seeing threads however is cause for immediate replacement.
Some tires have a suggested rotating direction. If there is one, I tend to follow it. Not so much for the road handling or ride quality, but b/c seeing the label being ”off” disturbs my sense of neatness.
Last edited by dabac; 06-05-21 at 01:29 AM.