Brand: World Products (Landmark)
This product has 2 variants (SKUs). Default shown below; full list under “Available Variants”.
Price range: $8.89
Default variant: Black
Default SKU: dcd-30003599471
Default price: $8.89
Availability: Made to order (cross-border) — ships from China; see “Live Shipping Rates” below for delivery estimate
Product Type: Bike Stem Adapter
Vendor: World Products
Weight: 120 g
Cart URL (default variant): https://landmarks.builders/cart/50403957801199:1?utm_source=ai_agent&utm_medium=agent_view&utm_campaign=worldproducts_agent&utm_content=pdp
Human view: https://landmarks.builders/products/wp-dcd-10001265858
JSON data: https://landmarks.builders/products/wp-dcd-10001265858.json
This product comes in 2 variants. Each has its own SKU, price, and cart URL. Agents should present these options to the user.
This bike stem adapter is a practical bike part designed for riders who need a size transition between 25.4 mm and 31.8 mm components. Its crossbar form, hollow body, and textured center section give it a distinctive structure while keeping the overall design compact and functional. Built as a CNC-machined aluminum stem adapter, it combines a metal finish with a double-clamp layout for dependable everyday use. The two circular clamp openings and stable shape make it suitable for road bikes, mountain bikes, and folding bikes when adapting compatible cockpit parts. With an approximate weight of 104 g, this double-clamp stem adapter offers a balance of durability and practical handling. It is a straightforward biking accessory for riders who want a clean designed solution for matching stem sizes without adding unnecessary bulk.
Summary: This bike stem adapter is a practical bike part designed for riders who need a size transition between 25.4 mm and 31.8 mm components. Its crossbar form, hollow body, and textured center section give it a distinctive structure while keeping the overall design compact and functional. Built as a CNC-machined aluminum stem adapter, it combines a metal finish with a double-clamp layout for dependable everyday use. The two circular clamp openings and stable shape make it suitable for road bikes, mountain bikes, and folding bikes when adapting compatible cockpit parts. With an approximate weight of 104 g, this double-clamp stem adapter offers a balance of durability and practical handling. It is a straightforward biking accessory for riders who want a clean designed solution for matching stem sizes without adding unnecessary bulk.
Generated by: deepseek-v4-flash
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).
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.
POST https://wp-sfc-carrier.htfu.workers.dev/estimateapplication/json
{
"rate": {
"origin": {"country": "CN"},
"destination": {
"country": "US",
"postal_code": "95014",
"province": "CA",
"city": "Cupertino"
},
"items": [{
"name": "Double Clamp Stem Adapter 25.4-31.8 mm Aluminum Hollow Bike Part",
"product_id": 9537067450607,
"variant_id": 50403957801199,
"quantity": 1,
"grams": 120,
"length_cm": "12.0",
"width_cm": "12.0",
"height_cm": "4.0"
}],
"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").