Bach 190L65GV Stradivarius Bb TrumpetThe 190L65GV is built on a Large bore Vindabona (LV) . 462" two piece valve chassis with nickel balusters, nickel outer slides, and brass valve guides. The new bore size takes the horn from medium large bore to large bore in the same style as the MLV, for players looking for an even bigger sound than the MLV but still desiring efficiency. The standard weight, side seam 5" #65G bell with a round brass wire bell is heavier than normal for the 190