Adjustable Bicycle Seatpost for 25.4/27.2/28.6/30.4/30.9/31.6mm Bikes

If you find it difficult to turn the fixing bolt the first time, please insert the post into the bike frame hole and lock the seatpost clamp. Then, you can turn the bolt easily with a hexagon screwdriver. After the bolt is moved the first time, it can be easily moved afterwards.

Specifications: - Material: 6061 T6 Aluminum alloy - Color: Black - Weight: Approximately 380g - Length: 450mm - Tube Thickness: 2.5mm, high strength - Tube Outer Diameter: 25.4mm, 27.2mm, 28.6mm, 30.4mm, 30.9mm, 31.6mm

The extra length helps to raise the height of the saddle, allowing taller riders to avoid bending too much forward.

Features: - The clamp is adjustable for the saddle tilt angle. - Package includes: 1 x Bike Seatpost

Important Note: Normally, it is not recommended to put more than 220 lbs (100 kg) on this seatpost.

Size Considerations: The diameter number is for the frame seatpost hole. The seatpost measures slightly smaller than the diameter number marked on it. For example, a 25.4mm seatpost may measure around 25.0mm to 25.2mm, not exactly 25.4mm.

Additional Features: - Length: 450mm - Tube Thickness: 2.5mm, high strength - Safe Insertion Line: Please install to the safe line at least - Replacement Seatpost with Extended Extra Long Length - Micro-Adjustable Clamp: You can adjust the tilt angle of the saddle via the clamp to make the saddle horizontal.

How to Measure and Confirm the Diameter: 1. Check the diameter mark on your old seatpost. If it says "Φ25.4," then you can buy a new 25.4mm seatpost. 2. If you have a vernier caliper, measure your old seatpost diameter or the inner diameter of the seatpost hole, and select a similar size new seatpost. For example, if the measurement is around 27.1mm, a 27.2mm seatpost will work. 3. If you don't have a vernier caliper, use a small stick to measure the inner diameter of the seatpost hole (see the picture).

Important Note: The actual seatpost diameter is slightly smaller than the number marked on it. For example, a 25.4mm seatpost may measure around 25.0-25.2mm.

This seatpost is a replacement for most bikes, including mountain bikes, road bikes, and universal bikes. It features an extra-long length of 17.7" (45cm) to help raise the height of the saddle, allowing taller riders to avoid bending too much forward. The clamp is adjustable for the saddle tilt angle.

product information: