So, my new 2021 3121RL came with that feature too (sure didn't order it though). Thought I would reach out to the source for method of removal and I got this reply from the US distributor (spoiler alert - don't bother to read if you're looking for a constructive answer) :
"Rip,
Commercial Department has finally received a response and it seems that these tires are shipped by the manufacturer with this sticker on it. There is no issue with the removal but any methods to remove should not include applying any heat source or puncturing/cutting the outside rubber of the tire, nor the use of any chemical cleaner/solvent either, as it could damage the rubber.
Thank you for your patience,
Olga Fraga
Consumer Relations
TBC Wholesale
Tel. (800) 238-6469
Fax (800) 467-4638
Email:
ofraga@tbccorp.com"