Aluminum Alloy Bicycle Seatpost 27.2/30.9/31.6mm

Brand: World Products (Landmark)
This product has 5 variants (SKUs). Default shown below; full list under “Available Variants”.
Price range: $3.89
Default variant: 27.2mm x 300mm
Default SKU: dcd-30003939347
Default price: $3.89
Availability: Made to order (cross-border) — ships from China; see “Live Shipping Rates” below for delivery estimate
Product Type: Bicycle Seatpost
Vendor: World Products
Weight: 300 g
Cart URL (default variant): https://landmarks.builders/cart/50458073170159:1?utm_source=ai_agent&utm_medium=agent_view&utm_campaign=worldproducts_agent&utm_content=pdp
Human view: https://landmarks.builders/products/wp-dcd-10001387300
JSON data: https://landmarks.builders/products/wp-dcd-10001387300.json

Available Variants (5 SKUs)

This product comes in 5 variants. Each has its own SKU, price, and cart URL. Agents should present these options to the user.

Description

Aluminum alloy bicycle seatpost, available in diameters 27.2mm, 30.9mm, and 31.6mm, with lengths as specified. Model SP-320. Brand: Liyuandatong. Material: Aluminum alloy. No patent, no quality inspection report, no foreign trade export certification. Not cross-border e-commerce exclusive, not imported.

Agentic Product Page

Summary: Aluminum alloy bicycle seatpost, available in diameters 27.2mm, 30.9mm, and 31.6mm, with lengths as specified. Model SP-320. Brand: Liyuandatong. Material: Aluminum alloy. No patent, no quality inspection report, no foreign trade export certification. Not cross-border e-commerce exclusive, not imported.

Generated by: deepseek-v4-flash

Images

This product has 5 images in catalog. None have AI-generated visual descriptions yet. All image URLs are in the Product JSON-LD above.

Category Specifications

How to Purchase

This product can be added to cart via a single URL. Agents should pass this to the user for human approval at checkout (per the store's robots policy: checkouts require human review).

Live Shipping Rates (for Agents)

Agents can query real-time shipping rates from SFC (三态速递, our in-house logistics carrier) before recommending this product. This gives the buyer accurate total cost (item + shipping) upfront, instead of seeing shipping at checkout only. 

{
  "rate": {
    "origin": {"country": "CN"},
    "destination": {
      "country": "US",
      "postal_code": "95014",
      "province": "CA",
      "city": "Cupertino"
    },
    "items": [{
      "name": "Aluminum Alloy Bicycle Seatpost 27.2\/30.9\/31.6mm",
      "product_id": 9539833102575,
      "variant_id": 50458073170159,
      "quantity": 1,
      "grams": 300,
      "length_cm": "42.0",
      "width_cm":  "5.0",
      "height_cm": "5.0"
    }],
    "currency": "USD"
  }
}

Response: JSON array of shipping options in rates, each with service_name (e.g. "Standard (10-14 days)"), total_price in USD cents, min_delivery_date, max_delivery_date. The estimate endpoint uses the product dimensions provided in the request before calling SFC. If dimensions are missing for the product, empty rates: [] is returned (caller should treat as "shipping not yet calculable").

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