Problem Solvers Micro Adjustable Headset Spacer - For 1-1/8" Steer Tubes 10mm Min 12mm Max Height Material-Synthetic 4mm outer width

4mm outer width

6" compound 3C MaxxTerra bead folding type tubeless color black weight 1035g

Defined Color Black Drivetrain Speeds 11 Fits Brand Shimano Fits Model Dura-Ace 9100 Fits Model Dura-Ace R9150 Fits Model Ultegra R8000-SS Fits Model Ultegra R8050-SS/GS Largest Cog 32 Shifter/Derailleur Compatibility Shimano keyword search OSPWS Aero

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Problem Solvers Micro Adjustable Headset Spacer - For 1-1/8" Steer Tubes 10mm Min 12mm Max Height Material-Synthetic 4mm outer widthProblem Solvers Micro Adjustable Headset Spacer. 12mm Height. The Problem Solvers adjustable spacer installs between the stem and headset to adjust bearing preload. Installs between stem and headset to adjust headset preload Use instead of star nut or preload compression plug; ideal for carbon steerers Requires a minimum of 10mm stack height below stem TECH SPECS Color Black Defined Color Black Thickness 12