Proper frame preparation is very important. The HTR-1 combines reaming and facing for both head tube and unthreaded bottom bracket shells.
Quick-release, quick-adjust feature: bottom portion slides off and on easily without threading
Optional accessories include over 20 different reamers and facers for numerous headset and bottom bracket standards
SHIS terminology: The stock HTR-1 will face EC29, EC30, EC34 and EC37 frames. It will ream EC30 frames. Accessories will allow service in other standards