eeNut preload assembly

The eeTop and eeNut offer a beautifully functional new concept for an extremely lightweight preload assembly. A total weight of only 9.6 grams for the full assembly, saves 30 grams over the typical top and preload. The eeNut is a unique and patent pending design providing ultra light weight, solid locking action and ease of installation in one package. The recessed cone shape provides greater tension stiffness. This increased stiffness facilitates precise headset adjustment and sets it apart from other lightweight caps.

  • TOP CAP 7075 T-6 Aluminum 2.6 grams
  • TOP BOLT 7075 T-6 Aluminum 1.6 grams
  • COMPRESSION CONES 7075 T-6 Aluminum 1.0 gram each (2 per assembly)
  • PRELOAD NUT BOLT 7075 T-6 Aluminum 1.8 grams
  • PRELOAD NUT 7075 T-6 Aluminum 1.6 grams
  • TOTAL WEIGHT 9.6 grams
  • AVAILABLE FITS Fits Steerer Inner Diameters from 22.8mm to 25mm (1 1/8th Steerers and Stems)

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Find Your Headset

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Standardized Headset Identification System

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SHIS Overview

The Standardized Headset Identification System (S.H.I.S.) incorporates the four critical interface dimensions required to fit a fork to a frame, as well as explicitly noting bearing location/cup type. To determine S.H.I.S., establish the type of headset (External Cup [EC], Zero Stack [ZS] or Integrated [IS]), then measure the stem clamp and crown race seat on the fork steerer, and the inner diameter of the top and bottom of the bicycle head-tube.

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