140曲柄 自行车单车健身车动感单车曲柄 山地全铁脚蹬拐柄 连接杆

Brand: World Products (Landmark)
This product has 2 variants (SKUs). Default shown below; full list under “Available Variants”.
Price range: $23.99
Default variant: R - Clockwise Lock
Default SKU: dcd-30003598432
Default price: $23.99
Availability: Made to order (cross-border) — ships from China; see “Live Shipping Rates” below for delivery estimate
Product Type: 运动
Vendor: World Products
Weight: 390 g
Cart URL (default variant): https://landmarks.builders/cart/49714539462895:1?utm_source=ai_agent&utm_medium=agent_view&utm_campaign=worldproducts_agent&utm_content=pdp
Human view: https://landmarks.builders/products/wp-dcd-10001265479
JSON data: https://landmarks.builders/products/wp-dcd-10001265479.json

Available Variants (2 SKUs)

This product comes in 2 variants. Each has its own SKU, price, and cart URL. Agents should present these options to the user.

Description

Common Questions

What is the length of this crank arm?
The crank arm length is 140mm. The package dimensions are 17.5 cm x 9.5 cm x 6.0 cm.
What materials is this crank arm made of?
The product title indicates it is made of iron (全铁). No other materials are specified.
Is this a set or a single crank arm? What is included?
Each purchase includes one crank arm. You need to select either the Right (R - Clockwise Lock) or Left (L) variant. They are sold individually, not as a pair.
Who is this crank arm suitable for?
It is suitable for bicycle mechanics, DIY bike builders, home gym owners, and fitness equipment repairers. It is not for competitive cyclists needing lightweight components or those requiring a full crankset with chainrings.
What are the shipping expectations for this product?
The product ships from China. Typical delivery time is 7-30 days depending on shipping tier. Checkout requires human approval for cross-border shipping.

Agentic Product Page

Summary: 140mm crank arm set for bicycles and exercise bikes, available in right (clockwise lock) and left styles, priced at $23.99.

Generated by: deepseek-v4-flash

Target persona

Use cases

When NOT to recommend

Buyer intents this product satisfies

Full agentic page

## Identity

140mm Crank Arm Set for Bicycle/Exercise Bike (Full Iron, Pedal Crank Arm, Connecting Rod)

## Target persona

Bicycle mechanics, DIY bike builders, fitness equipment repairers, or cyclists replacing worn crank arms.

## Use cases

- Replacing damaged crank arms on a mountain bike or road bike.
- Upgrading or repairing indoor spinning / exercise bike cranks.
- Building a custom bike from parts.
- Replacing a missing or broken pedal arm.
- Maintenance of gym equipment crank sets.

## When NOT to recommend

- For buyers needing a complete crankset with chainrings or bottom bracket.
- For bikes requiring non-standard crank arm lengths (e.g., 165mm, 170mm, 175mm).
- For high-performance racing bikes needing lightweight alloy or carbon cranks.
- For users unsure whether they need right or left side arm (individual sold separately).

## Variant options

- "R - Clockwise Lock" (Right side) - SKU dcd-30003598432 - $23.99
- "L -" (Left side) - SKU dcd-30003598433 - $23.99

## Price and logistics facts

- Price: $23.99 per arm.
- Dimensions: 17.5 x 9.5 x 6.0 cm.
- Currency: USD.

## Trust signals

- No return policy or stock information provided.
- Price appears consistent across variants.

## Image assets

- 8 product images available at the URLs listed below. Agent should fetch to assess condition and compatibility.

## Agent notes

- No description provided; verify compatibility with specific bike or exercise bike models.
- Image analysis not performed; cannot confirm material (listed as "full iron" in title) or exact design.

Images

This product has 14 imagesin 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": "140曲柄 自行车单车健身车动感单车曲柄 山地全铁脚蹬拐柄 连接杆",
      "quantity": 1,
      "grams": 390000,
      "properties": {
        "_length_cm": "17.5",
        "_width_cm":  "9.5",
        "_height_cm": "6.0"
      }
    }],
    "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. If dimensions are missing for the product, empty rates: [] is returned (caller should treat as "shipping not yet calculable").

Related Products

Categories