About The Product
- 1/2" X 1/8" chain for use with single speed, internally geared and fixie bikes
- Anti-Drop design helps reduce the likelihood of dropped chains
- Formerly the Z410 model
Upgrade your bike's drivetrain with the KMC S1 Chain - the ultimate single-speed chain engineered for durability, performance, and style. Crafted from premium materials and packed with innovative features, this high-quality bicycle chain is designed to meet the demands of BMX, Fixie, Track, Mountain, Electric Bikes, and beach cruisers.
Materials & Construction:
Constructed from corrosion-resistant carbon steel with a durable brown finish, the KMC S1 Chain offers excellent strength and longevity. Its bushing-less design reduces weight and provides a smooth, efficient ride. The 112 links measuring 8.6mm in width and crafted with heavy-duty, nickel-plated components ensure reliable performance across various riding conditions.
Performance & Engineering:
Designed for a single-speed drivetrain (1/2" x 1/8"), the KMC S1 Chain delivers high pin power and reinforced durability. Thanks to its stretch-proof treatment and mushroom riveting, it maintains optimal performance and minimizes elongation over time. The chain's anti-drop design enhances safety during aggressive riding or tricks, reducing chain slippage and ensuring consistent power transfer.
Components & Technology:
Featuring a reusable master link, this chain allows for easy installation and maintenance. Its lightweight yet robust construction makes it ideal for BMX riding, road racing, track, and urban cycling. The anti-drop design and high-quality materials enable quieter operation, reducing noise and vibrations, resulting in a smoother riding experience.
Style & Use Case:
With a stylish brown finish, the KMC S1 Chain adds a sleek aesthetic to any bike setup. Perfect for single-speed bicycles, BMX bikes, and fixed-gear enthusiasts seeking a reliable, high-performance chain that combines style, strength, and efficiency. Its compatibility with internal gear hubs and electric bikes makes it versatile across different cycling disciplines.
Innovative & Differentiating Features:
- Heavy-duty, nickel-plated construction for increased lifespan
- Anti-drop design for safer, more confident rides
- Wide compatibility with internal gear hubs and electric bikes
- Stretch-proof treatment and mushroom riveted for consistent performance
- Quieter ride experience with reinforced durability
Specifications:
- Links: 112
- Width: 8.6mm (1/8" size)
- Color: Brown
- Material: Carbon Steel with nickel plating
- Drivetrain Compatibility: Single speed 1/2" x 1/8"
- Connection: Reusable master link
Enhance your cycling experience with the KMC S1 Chain-designed for durability, optimized for performance, and built to last. Perfect for riders who demand reliability without compromising style. Whether you're tearing up the BMX track or cruising around town, this chain ensures smooth, safe, and efficient rides every time.
- Durable, lightweight design crafted from high-quality steel for reliable single-speed performance on mountain bikes, BMX, fixies, and track bikes.
- Specially engineered with chamfered, anti-drop features to ensure smooth engagement and reduce the risk of chain drops during aggressive riding.
- Compatible with internal gear hubs, electric bikes, beach cruisers, and standard singlespeed setups, thanks to versatile stainless steel construction and heavy-duty bushing-less design.
- Features reinforced outer plates with extra thickness and bulls-eye riveting, providing enhanced durability for frequent grinding and aggressive riding styles.
- Sleek brown finish offers a stylish vintage look while optimized for quiet, efficient riding performance with high pin power and stretch-proof, mushroom-riveted technology for long-lasting reliability.
| Specification | Value |
|---|---|
| Manufacturer | KMC |
| Manufacturer Part No. | CN41018 |
| Universal Product Code | 766759241018 |
| Invoice Description | CHAIN KMC 1/2x1/8 S1 1s BRN 112L |
| Package Dimensions | 4 x 4.1 x 1.2 |
| Country of Origin | TAIWAN |
| Speeds | 1sp |
| Size | 1/2x1/8 |
| Links | 112L |
| Material | DB |
| Color | Brown |
| Width | 8.6mm |
- Supplier:
- JBI
Bike Junkies offers no‑hassle returns and exchanges within 60 days of delivery. We want every customer to feel confident when shopping with us, and our return process is designed to be simple, fair, and fast.
Return Eligibility
To qualify for a return or exchange, the following conditions must be met:
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The item must be in new, unused, and uninstalled condition.
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All original packaging, tags, hardware, and accessories must be included and intact.
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Items showing wear, installation marks, damage, or improper use cannot be accepted.
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An order number is required.
Once your return is received at our warehouse, a refund will be issued within 5 days after inspection.
Refunds
Refunds are issued to the original form of payment once the returned item has been received and approved. If we are unable to refund to the original payment method, the refund will be issued as store credit.
Depending on your bank or credit card provider, it may take an additional 2–3 business days for the refund to appear in your account.
Exchanges
To make an exchange, simply complete the return process and then place a new order for the item you want instead. This ensures the replacement item is reserved and ships quickly.
How to Start a Return
To request a Return Authorization (RA#), contact us at support@bikejunkies.com. Please include your order number and the item you wish to return.
Once approved:
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You will receive a Return Authorization email with instructions.
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Print the prepaid label provided by us. ($9.99 will be deducted from your refund)
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Ship the item back within 7 days of the RA being issued as RA #'s are only valid for 7 days.
Please do not tape anything to the original product packaging. Place the item inside a proper shipping box. Using the manufacturer’s box as the shipping container will result in damage and the return may be rejected.
Be sure to keep your return tracking number. Powersport Junkies is not responsible for lost return shipments. You will receive a confirmation email once your return has been processed and refunded.
Defective, Incorrect, or Damaged Items
If you receive a defective, damaged, or incorrectly shipped item, contact us immediately. We will cover the return shipping cost and ensure the issue is resolved quickly.
Non‑Returnable Items
Certain items cannot be returned, including:
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Electronics with opened packaging or broken manufacturer seals
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Any part that has been installed or shows installation attempts
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Tools or chemicals that have been opened or unsealed
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Open‑box items with destroyed or missing packaging
Our Info
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Storefront name: Bike Junkies
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Address: 940 Calle Amanecer, Suite N
San Clemente, CA 92673 -
Phone: 800-605-2152
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Support email: support@bikejunkies.com
- Support hours + timezone:
Monday-Friday: 9:00 AM-5:00 PM PST
Saturday: 9:00 AM-3:00 PM PST
Sunday: Closed
This Shipping Policy explains how orders are processed, handled, and delivered by Bike Junkies, including delivery timelines, shipping coverage, and special conditions for military addresses. It is designed to give customers a clear understanding of what to expect when placing an order.
Bike Junkies is proud to be an authorized dealer of the brands we currently offer. When you purchase from us, you are guaranteed to receive genuine, brand-new products backed by the full manufacturer warranty. We work directly with the manufacturers to ensure you receive the highest quality service and support.
Order Processing and Handling
Orders are processed quickly to ensure fast delivery. Our standard handling time is 0–1 business days. Order cutoff time is 12 PM PST Monday-Friday and orders placed after that will be shipped shipped next business day.
Transit Times
Once shipped, orders typically arrive within 2–3 business days. Transit times may vary slightly depending on the destination, weather conditions, or carrier-related delays. Delivery estimates apply only after the order has left our facility.
Delivery Schedule
Standard delivery occurs Monday through Friday. Saturday delivery may be available.
Shipping Coverage
Bike Junkies offers free shipping to the lower 48 states of the United States. We do not ship to the following locations:
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Alaska
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Hawaii
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Puerto Rico
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Any international destination outside the United States
Orders placed with shipping addresses in restricted locations will be canceled and refunded.
Military Shipping (APO/FPO)
Bike Junkies ships to APO/FPO military addresses using USPS only.
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We cannot ship hazardous materials or oversized items to military addresses due to carrier and military mail restrictions.
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Transit times to APO/FPO locations may vary significantly depending on military mail processing.
Address Accuracy and Delivery Issues
Customers are responsible for ensuring that all shipping information provided at checkout is accurate and complete. Bike Junkies is not responsible for delays, lost packages, or delivery failures caused by incorrect or incomplete addresses. If a package is returned due to an address error, additional shipping charges may apply to resend the order.
Lost, Delayed, or Damaged Shipments
If a shipment is delayed, lost, or arrives damaged, customers should contact us promptly so we can assist with initiating a claim or resolving the issue with the carrier. While we support the process, final decisions regarding claims are made by the carrier.
Tracking Information
A tracking number is provided via email once the shipping label has been created. Tracking updates may take up to 24 hours to appear after the label is generated.
Shipping Restrictions
Certain items may be subject to shipping restrictions due to size, weight, or hazardous material regulations. If an order cannot be shipped due to such restrictions, we will notify the customer to arrange an alternative solution.
Our Info
-
Storefront name: Bike Junkies
-
Address: 940 Calle Amanecer, Suite N
San Clemente, CA 92673 -
Phone: 800-605-2152
-
Support email: support@bikejunkies.com
- Support hours + timezone:
Monday-Friday: 9:00 AM-5:00 PM PST
Saturday: 9:00 AM-3:00 PM PST
Sunday: Closed
For warranty issues please contact us at support@bikejunkies.com. Each Brand is different and we can provide instruction to complete warranty issues.
Bike Junkies is proud to be an authorized dealer of the brands we currently offer. When you purchase from us, you are guaranteed to receive genuine, brand-new products backed by the full manufacturer warranty. We work directly with the manufacturers to ensure you receive the highest quality service and support.
Our Info
-
Storefront name: Bike Junkies
-
Address: 940 Calle Amanecer, Suite N
San Clemente, CA 92673 -
Phone: 800-605-2152
-
Support email: support@bikejunkies.com
- Support hours + timezone:
Monday-Friday: 9:00 AM-5:00 PM PST
Saturday: 9:00 AM-3:00 PM PST
Sunday: Closed
