Uxcell Bicycle Seatpost Aluminum Alloy Seat Tube with Scale Mark Black Universal for MTB Mountain Bike 33.9×350mm

Dimensions: Bicycle seatpost size: 350x31.8 mm(L*D), frame seatpost hole: 31.8 mm, length: 350 mm, tube thickness: 2.5 mm Note: Please measure the actual outer diameter and then choose the diameter you actually need, or measure the inner diameter of the frame tube before purchasing. Saddle clamps are not included, please purchase saddle clamps if necessary. Material: The seatpost is made of aluminum alloy, strong and durable material for long-term use. EASY INSTALLATION: Installing the saddle on this seatpost is easy. Simply unbolt the old seat, lower the seat, secure the seat to the new seat and attach it to the bike rack. There is a safe line mark on the seat post. Insert it above the minimum safety line. Universal fit: Suitable for most mountain bikes, road bikes, MTB, etc. Features: Easy to install. Made of aluminum alloy, durable material for long-term use. Suitable for most mountain bikes, road bikes, MTB, etc. There is a safe line mark on the seat post. Insert it above the minimum safety line. specification: Material: aluminum alloy Color: black Thickness: 2.5mm Hole 1 size: 31.8x27 mm(OD*ID) Hole 2 size: 22x16 mm(OD*ID) Installation instructions: 1. Loosen the bolts on the old seat and lower the seat. 2. Secure the sheet to the new sheet. 3. Attach to bicycle rack. Note: The size is measured manually, so there may be an error of 1-2 mm. Please measure the actual outer diameter and then choose the diameter you actually need, or measure the inner diameter of the frame tube before purchasing. Package contents: 1pcs bicycle seatpost