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 : 840226106786
Manufacturer # : BAA0655K
SPECIFICATIONS
COLOR : Black
COMPLETE/TOP/BOTTOM : Complete
GRAMS : 133
MATERIAL : AL-6061-T6
MFG. PART NO. : BAA0655K
S.H.I.S. : ZS49/28.6/H8:EC49/40/H12
STEERER DIAMETER : 1.5” to tapered
SUB CATEGORY : Complete Headsets