I'm still considering adding this to the back of the milk crate on my bicycle. #MUTCD R4-11 "Bicycles May Use Full Lane", especially if I can get one that is properly reflective.
Note that this sign has been superceded in the 11th Edition (2023) by R9-20 "Bicycles Allowed Use of Full Lane". Normally, the minimum size of these signs is specified as 30 x 30 inches.






