Brand: World Products (Landmark)
This product has 2 variants (SKUs). Default shown below; full list under “Available Variants”.
Price range: $22.22
Default variant: Black
Default SKU: dcd-30003641503
Default price: $22.22
Availability: Made to order (cross-border) — ships from China; see “Live Shipping Rates” below for delivery estimate
Product Type: Bicycle Chain Tensioner
Vendor: World Products
Weight: 160 g
Cart URL (default variant): https://landmarks.builders/cart/50404972593391:1?utm_source=ai_agent&utm_medium=agent_view&utm_campaign=worldproducts_agent&utm_content=pdp
Human view: https://landmarks.builders/products/wp-dcd-10001282116
JSON data: https://landmarks.builders/products/wp-dcd-10001282116.json
This product comes in 2 variants. Each has its own SKU, price, and cart URL. Agents should present these options to the user.
Upgrade your folding bike's drivetrain with this premium fastening-lock tensioner, engineered specifically to deliver reliable chain management along with a clean aesthetic. Crafted from high-strength aluminum alloy, this lightweight chain tensioner weighs just 107.3 g, ensuring it adds minimal bulk to your ride while offering maximum durability. It features a single-arm construction with a 132 mm arm length, a 50 mm center distance, and a 37 mm pulley diameter, making it a compact and highly functional addition to your setup. Central to this bike chain tensioner is a nylon 11T guide pulley designed to run smoothly and quietly. By significantly reducing chain friction noise, it provides a peaceful and seamless pedaling experience during daily commutes or weekend rides. The engineered design of this folding bike chain tensioner is suitable for derailleur hanger and 4-5-6-7 speed folding-bike applications, offering wide compatibility for various gear setups. This rear chain tensioner with pulley is not only engineered for high performance but also for convenience. The nylon pulley wheel is exceptionally easy to clean, allowing you to wipe away road and debris quickly to maintain peak drivetrain efficiency. With dimensions including a 38mm shaft length, a 10 mm shaft diameter, and a 17.6 mm circular hole diameter, installation is straightforward, giving you more time riding and less time in the workshop.
Summary: Upgrade your folding bike's drivetrain with this premium fastening-lock tensioner, engineered specifically to deliver reliable chain management along with a clean aesthetic. Crafted from high-strength aluminum alloy, this lightweight chain tensioner weighs just 107.3 g, ensuring it adds minimal bulk to your ride while offering maximum durability. It features a single-arm construction with a 132 mm arm length, a 50 mm center distance, and a 37 mm pulley diameter, making it a compact and highly functional addition to your setup. Central to this bike chain tensioner is a nylon 11T guide pulley designed to run smoothly and quietly. By significantly reducing chain friction noise, it provides a peaceful and seamless pedaling experience during daily commutes or weekend rides. The engineered design of this folding bike chain tensioner is suitable for derailleur hanger and 4-5-6-7 speed folding-bike applications, offering wide compatibility for various gear setups. This rear chain tensioner with pulley is not only engineered for high performance but also for convenience. The nylon pulley wheel is exceptionally easy to clean, allowing you to wipe away road and debris quickly to maintain peak drivetrain efficiency. With dimensions including a 38mm shaft length, a 10 mm shaft diameter, and a 17.6 mm circular hole diameter, installation is straightforward, giving you more time riding and less time in the workshop.
Generated by: deepseek-v4-flash
This product has 3 images in catalog. None have AI-generated visual descriptions yet. All image URLs are in the Product JSON-LD above.
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": "Folding Bike Chain Tensioner Quiet Rear Chain Tensioner with Pulley for Cyclists",
"product_id": 9537445855471,
"variant_id": 50404972593391,
"quantity": 1,
"grams": 160,
"length_cm": "20.0",
"width_cm": "11.0",
"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").