Controltech Titanium Bicycle Bike Integrated Taper Headset 1 1/8"-1.5" IS42 IS52 or more in some cases

or more in some cases

low weight

almost locking the chain to the ring without much increase in drag

-Its lean construction reduces weight

Advanced tool for both open and close the chain master link

Controltech Titanium Bicycle Bike Integrated Taper Headset 1 1/8"-1.5" IS42 IS52 or more in some casesControltech Titanium Bicycle Bike Integrated Taper Headset S. H. I. S CODE : IS42 28. 6IS52 40 Specification: Size: 1 1 8" 1 1 2", 45 45 ACB , 1 1 8 Upper ,1 1 2" Bottom Material: Titanium cups w titanium top cap Stack Height: 12+4= 16mm Weight: approx. 133g 4. 75oz Notice: It's better to measure the SHIS of your frame before you buy.