Refined title: Aluminum Alloy Bicycle Seatpost 25.4/27.2/28.6 x 350 mm for Mountain MTB Road Fixed Gear

When selecting the appropriate size for your bicycle seat post, you can follow one of two methods:

Method 1: Measure the diameter of your old seat post, and choose a new one of the same size. Method 2: Measure the inner diameter of your bike frame's seat tube, and select the corresponding size for the new seat post.

The product is available in three different sizes: - 350 × 25.4 mm - 350 × 27.2 mm - 350 × 28.6 mm

Please note the following: 1. Ensure you measure and confirm the actual diameter required before making a purchase, to avoid ending up with a size that is too small or too large for your bike. 2. This package includes only the bicycle seat post, and does not include the saddle clamp. 3. Due to manual measurement, there may be a slight size variation.

The bicycle seat post has the following specifications: - Length: 350 mm / 13.8 inches - Outer Diameter: 25.4 mm / 1 inch - Thickness of the tube: 2 mm / 0.08 inch - Color: Black

The seat post is made of aluminum alloy, which is durable and has an internal design to improve the load-bearing capacity.

To install the new seat post, simply remove the old one, secure the seat bolt to the new post, and attach it to the bike frame. Please ensure the seat post is inserted at least above the minimum insertion line marked on the post.

This bicycle seat post is suitable for use with most traditional style bicycles, including mountain bikes, road bikes, and bikes with a saddle clamp.

product information: