Overview This versatile headset spacer kit is designed to accommodate three cable routing configurations when paired with our Profile Design Tri Stem or Road Stem: Fully integrated cable routing through the stem Semi-integrated cable routing beneath the stem External cable routing The split spacer design allows you to adjust handlebar stack height without disconnecting or rerouting cables, making fit adjustments quick, simple, and hassle-free while maintaining a clean, organized cockpit. Compatibility The R/T headset spacer kit is only compatible with a Profile Design Road or Tri stem. Includes Speed Addict Spacer 10mm Speed Addict Spacer 5mm Cable Cover Top Cover with Top Cover Seal ICR TO ST adapter (internal cable routing to stander Micro Spacer 0.25mm (PAT.) Tech Specs Material: Injected Nylon/Glass Fiber Finish: Matte Black Stem Compatibility: Profile Design Road or Tri stems. Weight: 40g Manual R/T Headset Spacer Kit Installation Instructions