If there is any Quality problem,pls contact me before leaving feedback,I will solve the problem for U

Warranty and Return policy:
1 year warranty

Description

  • 30mm of Anti-Slipping section made them NEVER loose as long as U fasten the big screw tight enough
  • Torque: 8nm~10nm
  • Enforced with Silicon Ring (last more than 20 years)
  • With Lips on top and very easy to be assembled and disassembled
  • Only Fit with M6* 20mm or Shorter headset cap screw
  • Steer tube Size: 
1"/One Inch: Inner Diameter: 19.5~22mm, 12g;
1 1/8": Inner Diameter: 21~24mm, 13.6g
1 1/4"(OverDrive 2): Inner Diameter: 24.5~28.5mm,16g
  • Enforced with Silicon Ring (last more than 20 years)