ZTTO MTB Road Bicycle Headset 1 1 8

ZTTO Bicycle Headset

Material: hined AL6061 T6SEALD BEARINGZTTO code: Upper cup/Bearing outside diameter+ Lower cup/Bearing outside diameter + Fork tube("44" for OD ø44,"56" for OD ø56,"S"for Sight Tube ,"T" for Tapered Tube fork)ZTTO code is for quick search,not a accurate specifications.Please refer to SHIS(Standard Headset Information System)If you have any question about headset standard,Please google "headset standard park tool" or contact usCaution: Due to product batch,the colors of crown race and bearing will be different. But it won't have any bad influence on its performance.

4252T

"42" for OD ø42, "52" for OD ø52, "T" for Tapered Tube forkIntegrated Angular ContactIS42/28.6IS52/40

4252ST

"42" for OD ø42, "52" for OD ø52, "S"for Sight Tube, "T" for Tapered Tube forkIntegrated Angular ContactIS42/28.6IS52/40(30)

4444S

"44" for OD ø44, "S"for Sight Tube forkZS44/28.6ZS44/30

4444T

"44" for OD ø44,"T" for Tapered Tube forkZS44/28.6EC44/40

4455ST

"44" for OD ø44, "55" for OD ø55, "S"for Sight Tube, "T" for Tapered Tube forkZS44/28.6ZS55/40(30)

4456ST

"44" for OD ø44, "56" for OD ø56, "S"for Sight Tube, "T" for Tapered Tube forkZS44/28.6ZS56/40(30)

3434S

"34" for OD ø34,"S"for Sight Tube forkEC34/28.6EC34/30

4247T

"42" for OD42, "47" for OD47, "T" for Tapered Tube forkIS42/28.6IS47/33Attention: this is for 1-1/4" (1.25 inch )Tapered Tube.

F4444S Folding Bike Headset

"F" for Folding bike, "44" for OD 44mm, "S"for Sight Tube forkZS44/28.6ZS44/30This headset design for floding bike, so there is NO star nut, screw and cap.