Covert I.C.R. Core Stem

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e*thirteen’s ICR (Internal Cable Routing) Core Stem elevates e-MTB cockpit design by providing a seamless and hidden pathway for control cables that runs through the handlebar, stem, headset, and frame. This innovative design gives a sleek look and offers added protection against damage from snags and crashes.

The ICR Core Stem features a flared bottom for a sleek integration with 1.5” Cable Routing Headsets like the Acros ARC system (note: not recommended for standard headsets). Expertly forged and CNC optimized from 6066 AL, this stem is built to withstand years of aggressive riding.

Its Zero-Gap bar clamp design ensures unwavering handlebar security, while the innovative 132° opposing steerer clamp bolts offer exceptional knee clearance and maintain alignment during tightening. This stem perfectly matches e*thirteen’s Aluminum or Race Carbon Covert ICR handlebars, creating a sleek, functional, and performance-enhancing cockpit setup.


  • An innovative Internal cable routing stem system that enables controlled cable routing through the handlebar, stem, and into the frame.
  • Corrosion-resistant Grade 12.9 T-25 hardware.
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Product Spec

35mm Zero Gap Bar Clamp
Recommended for use with 1.5” Internal Cable Routing Headsets (ie Acros ARC)
*Not recommended for standard headsets.
50mm length / 0 rise