Replaces Cane Creek XX-44 headset
EC44/40 Conversion Bottom fits 1-1/8 in. 44mm standard head tube bottom (44mm inner diameter)
For use with 1.5 in. threadless steerer tube bottom (40mm crown race seat diameter, tapered steerer tube)
Converts 44mm head-tube bottom for use with 1.5 in. 40mm crown race forks
External Cup (EC) 44mm Bottom...