Cane Creek 40 TD Conversion Bottom 1.5 Treadless

Replaces Cane Creek XX-44 headset
For use with 1.5" threadless steerer tube bottom (40mm crown race seat diameter, tapered steerer tube)
Converts 44mm head-tube bottom for use with 1.5" 40mm crown race forks
External Cup (EC) 44mm Bottom Assembly enables use of tapered steerer tube
External Cup (EC) assemblies feature press-in cups with bearings outside the frame
Combine with 44mm 1-1/8" ZeroStack Top Assembly for complete 44mm straight head-tube installation
Bottom assemblies include bottom cup, sealed oxide bearing, and crown race
Consistent stack heights across 10, 40 and 110 Series
Internal parts are cross-compatible across 10, 40 and 110 series
Durable steel crown race with low-friction face-seals