Origin8 Clampdown QR Seatpost Clamp 31.8 Black AL6061 MFPN=400-1911-00 Aluminum base welded to hollow

Aluminum base welded to hollow tubes for a durable and secure connection Bottle Type Standard Material Aluminum Color Black Access Style Top Weight 66 Mount Type Bolt-On Defined Color Black

Single-pocket hollow rim construction/extrusion

Uses a 10 speed chain segment and will work with up to 12 speed drivetrains

Holds one bike up to 3

Powerful disc brakes front and rear

Origin8 Clampdown QR Seatpost Clamp 31.8 Black AL6061 MFPN=400-1911-00 Aluminum base welded to hollowAL6061 T6 alloy quick release seatpost clamp. Stainless steel bushing ensures smooth lever action. Adjustment knob allows for on the fly fine tuning. Rounded edges and floating bolt ovalized hole design protects carbon frames and seatposts. 28. 6mm for 25. 4mm seatpost and steel frame. 29. 8mm for 27. 2mm seatpost and chromoly frame. 31. 8mm for 27. 2mm seatpost and aluminum frame. 34. 9mm for 30. 9mm seatpost and aluminum frame or 31. 6mm seatpost