Elitaone Ultralight Carbon Bicycle Seat Post 138g Compatible 25.4/27.2/30.9/31.6mm MTB Road Bike UD Matte Finish

Clamp diameter：Ø 154.5-27.2-30.9-31.6mmSetback：0mmClamp diameter：Ø 7 mm or 7x9 mm ovalLenghts：300mm or 350 mm or 400 mmMinimum Insert：100 mmMaterial：CarbonFinish: UD Matte blackScrews: TitaniumSeatpost maximum locking torque：5.5NmSaddle clamp tightening torque：5.5NmInstallation Instructions1.Seat Tube Tightening TorqueFor metal bicycle frames, tighten to 4NmFor carbon fiber frames, tighten to 4.5NmMaximum locking torque: 5.5Nm2. Saddle clamp tightening torqueRecommended tightening to 4.5-5.5Nm3.Installation WarningsEnsure that the clamp opening is offset from the frame opening during installation to avoid concentrated stress that may cause the seat post to crack.(NOTICE:For openings at both front and rear, the seat post clamp should be offset to the side.)Suggestion: Insert the seat post into the frame 10 cm.