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About this item

• Material: Aluminum Alloy. Diameter:31.8mm and 34.9mm.Diameter refer to seat post tube diameter not the seat post.
• Aluminum Quick Release Bike Seat Clamp.
• strong sleek retaining bolts ensure it to be double sturdy and firm.
• The "31.8", "34.9" refer to the seat post tube outer diameter not the seat post diameter!
• 34.9mm Bicycle Seat post clamp used for out diameter 33.5mm to 35.2mm bike frame seat tube .

The "31.8", "34.9" refer to the seat post tube outer diameter not the seat post diameter!