A St Louis
rib is a 4.5 lb to a 4.9 spare rib that
has been trimmed,sometimes called “trimmed rib”, with the
breast bone is removed making it easy to cut between the ribs. A St Louis
spare rib is designed to resemble a back rib and give better yield and
The weight range of this "trimmed rib/St Louis rib
The smaller the size, the higher the price.