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and 3mm sizes
Carbon Cover: Lightweight
The DebonAir™ spring helps deliver a smooth
Developed in collaboration with Trek for maximum chain security on rough terrain
Axle spacing: 84mm (Bolt on)
Park Tool 769 Reamer Extension for HTR-1 Head Tube Reaming Set EC30 EC34 EC37 Default:Default and 3mm sizesProduct Description The Park Tool 769 Reamer Extension is designed for use with the HTR 1 Head Tube Reaming and Facing Set to extend the reaming depth of compatible head tube reamers by 27mm from the head tube face. It is intended for bicycle frames using headset standards with deep insertion cups, including applications such as Chris King SteelSet headsets. This extension is used with 1", 1 1 8", and 1 1 4" headset standards and is a useful shop tool
