ZTTO MTB Road Bicycle CNC Headset 1 1/8"-1 1/2" Sealed Bearing 1.5Tapered 28.6 Straight Tube Bike Fork Internal Steering Bearing

ZTTO MTB Road Bicycle HeadsetMaterial: CNC Machined AL6061 T6Sealed bearingsWeight: About 92~136gZTTO CodeUpper cup/Bearing outside diameter+ Lower cup/Bearing outside diameter + Fork tube.Such as 4456ST:"44" for OD ø44,"56" for OD ø56,"S"for Straight Tube ,"T" for Tapered Tube forkZTTO code is for quick search,not a accurate specifications.Please refer to SHIS(Standard Headset Information System)Note:please check your frame upper diamater,lower diamater,fork tube upper diamater and lower diamater before buying.ZTTO F4444S Folding Bike Headset"F" for Folding bike, "44" for OD 44mm, "S"for Straight Tube forkZS44/28.6ZS44/30This headset design for floding bike, so there is NO star nut, screw and cap.4444S"44" for OD ø44, "S"for Straight Tube forkZS44/28.6ZS44/303434S"34" for OD ø34,"S"for Straight Tube forkEC34/28.6EC34/304242S("42" for OD ø42,"S"for Straight Tube fork)IS42/28.6IS42/29.84252ST"42" for OD ø42, "52" for OD ø52, "S"for Straight Tube, "T" for Tapered Tube forkIntegrated Angular ContactIS42/28.6IS52/40(30)4252T"42" for OD ø42, "52" for OD ø52, "T" for Tapered Tube forkIntegrated Angular ContactIS42/28.6IS52/404247T"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.4444T"44" for OD ø44,"T" for Tapered Tube forkZS44/28.6EC44/404455ST"44" for OD ø44, "55" for OD ø55, "S"for Straight Tube, "T" for Tapered Tube forkZS44/28.6ZS55/40(30)4456ST"44" for OD ø44, "56" for OD ø56, "S"for Straight Tube, "T" for Tapered Tube forkZS44/28.6ZS56/40(30)ZTTO MTB Road Bike Headset Spacer CoverFits：Road and Mountain Bicycles Stems and ForksMaterial : Aluminum Alloy MTB Headset Spacer&Top Cap,Stainless Bicycle Fork Headset Star Nut&BoltColor: BlackLight weight, strong pressure resistance, not easy to deform and suitable for majority of bicycle headset.