ZTTO 4455ST MTB Headset ZS44 ZS55 Tapered Sight Universal 1.5 Inch 28.6mm Fork Zero Stack Semi Integrated With Cups Road Bike

ZTTO 4455ST Bicycle Headset

ZTTO code: Upper cup/Bearing outside diameter+ Lower cup/Bearing outside diameter + Fork tube

("44" for OD ø44,"55" for OD ø55,"S"for Sight Tube ,"T" for Tapered Tube fork)

ZTTO code is for quick search,not a accurate specifications.Please refer toSHIS(Standard Headset Information System)

ZS44/28.6

ZS55/40(30)

If you have any question about headset standard,Please google "headset standard park tool" or contact us

MATERIAL: HINED AL6061 T6

SEALD BEARING

WEIGHT: About 126g

Due to Product batch,the colors of crown race and bearing will be different.But it won't have any influence on its performance.