EC means External Cup (traditional cup)
IS means Integrated (no cup, chamfers molded into headtube)
ZS means Zero Stack (cup is inside headtube)
Taper means 1.5″ to 1-1/8
This is a complete headset
Black anodized
UPC code : 840226095059
Manufacturer # : BAA0074K
SPECIFICATIONS
COLOR : Black
COMPLETE/TOP/BOTTOM : Complete
DIAMETER : 1-1/8”
GRAMS : 77
MATERIAL : AL-6061-T6
MFG. PART NO. : BAA0074K
S.H.I.S. : IS41/28.6/H15:IS41/30/H1
STEERER DIAMETER : 1-1/8”
SUB CATEGORY : Complete Headsets