MOUNTAIN BIKE HANDLE BAR STEM TIOGA AVENGER T BONE VINTAGE JAPAN FITS MANY

THIS IS A VINTAGE NEVER USED ITEM LATE FOUND IN A OLDER SCHWINN SHOP .THIS ITEM WAS USED ON MANY OLDER MOUNTAIN BIKES AND OTHER TYPE BIKES,,RARE ITEM TO COME BY AND WAS NEVER USED COMES WITH THE ORIG BOX,,ITS OLD SCHOOL AND ITS STAMPED JAPAN ON THE BOX ,,OTHER INFO ON THE BOX SAYS TIOGA BICYCLE SYSTEM COMPONENTS OVER SIZE AVENGER T BONE PRESTIGE TUBLAR HANDLEBAR STEM,,CHROMOLY EXPANDER & BINDER BOLTS LIGHT ALLOY WEDGE,,COLUMN 25.4MM,,EXTENSION 150 MM,,CLAMP 25.4.