Cirrus Pro Stems

Cirrus Pro Stems

Cirrus Pro Stems

The CNC machined 4ZA Cirrus Pro stem provides World Champ level components to the consumer. Designed and tested in the real world lab of Belgium.

  • Lightweight 3D forged 7050 aluminum stem
  • T6 heat treatment to maximize strength
  • Optimized wall thickness for the best stiffness to weight ratio
  • Less torque required for a higher closing force

Technical Specifications

  • Finish: Sandblasted Black
  • Material: 3d Forged 7075-T6 Aluminum
  • 31.8 clamping diameter utilizing distinctive 2 piece design
  • Multiple sizes for road, tri, mountain or TT usage
  • Optimized Frontcap Design For Even Torque Distribution
  • Length: 70-80-90-100-110-120-130 mm
  • Stack Height: 40 mm / Angle: +/- 7°
  • Weight: 100 gr - 105 gr