Item # 769
Head Tube Reamer Extension
For use with the HTR-1 Head Tube Reaming and Facing Set, the #769 extends the reaming depth of reamers used in 1", 1-1/8" and 1-1/4" headset standards down to 27mm from the head tube face. Designed for head tubes using headsets with deep insertion cups (Chris King® SteelSet headsets and others).
SHIS terminology: The 769 is used for EC34, EC30, or EC37 lower and upper headtubes.