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 single speed and fixed gear bicycles with the high-performance KMC S1 Chain, designed for durability, reliability, and smooth riding. This premium 1/2" x 1/8" chain features 112 links, expertly engineered to deliver optimal power transfer and efficient pedaling for city commuting, track cycling, or recreational riding.
Materials & Construction:
Constructed from robust Die-Cast (DB) heat-treated steel, the KMC S1 Chain ensures long-lasting strength and resistance to wear and corrosion. Its high-quality materials provide excellent durability under daily cycling conditions, making it a dependable choice for both casual riders and cycling enthusiasts.
Performance & Engineering:
Engineered for precision, this chain features a narrow 1/2" x 1/8" format compatible with single speed, internally geared, and fixie bikes. The optimized design ensures smooth engagement and efficient power transfer, minimizing pedal resistance and enhancing overall ride quality. The 112-link configuration offers a perfect balance between strength and flexibility, reducing derailments and chain elongation over time.
Innovative & Differentiating Features:
The standout Anti-Drop design is a key feature, significantly reducing the likelihood of dropped chains during aggressive riding or bumpy terrains. This innovative technology provides added security and confidence, especially on urban roads and flat terrain rides where chain retention is critical. The chain's former designation as the Z410 model highlights its trusted performance and reputation among cycling communities.
Style & Use Case:
With its sleek yellow finish, the KMC S1 Chain adds a vibrant touch to any build, enhancing the aesthetic appeal of your bike. Ideal for single speed, fixie, and internal gear hub setups, this chain is perfect for urban commuting, track racing, and casual cycling. Its lightweight yet durable design makes it a versatile choice for riders seeking simplicity and reliability.
Key Specifications:
- Size: 1/2" x 1/8"
- Link Count: 112 links
- Material: Die-Cast (DB) steel
- Compatibility: Single speed, internally geared, and fixie bikes
Boost your bike's performance with the reliable, high-quality KMC S1 Chain - engineered to provide smooth, secure rides with superior durability. Whether you're upgrading your daily commuter or fine-tuning your fixie, this chain is your essential cycling component for a confident ride.
- Durable, high-quality construction with a corrosion-resistant nickel-plated finish ensures long-lasting performance and reliable power transfer for your single speed, fixed gear, or internally geared bikes.
- Engineered with KMC's innovative Anti-Drop design, this chain significantly reduces the risk of chain drops, providing a smoother and safer ride during daily commutes or intense pedal sessions.
- Precision-machined from heat-treated, high-strength alloy (DB), this 112-link chain delivers optimal durability, flexibility, and efficient riding experience for urban riders and cycling enthusiasts alike.
- Designed for versatile use with 1/2" x 1/8" chainrings, this easy-to-install chain is ideal for single speeds, fixies, and internal gear hub setups, making it a perfect upgrade for a variety of bike types.
- Featuring a stylish yellow finish, the KMC S1 Chain adds a vibrant touch to your bike's aesthetics while delivering excellent performance, making it a top choice for style-conscious cyclists seeking reliability and innovation.
| Specification | Value |
|---|---|
| Manufacturer | KMC |
| Manufacturer Part No. | CN41131 |
| Universal Product Code | 766759241131 |
| Invoice Description | CHAIN KMC S1 1s YL 112L |
| Shipping Weight | 0.81 lbs. |
| Package Dimensions | 4.05 x 3.95 x 1 |
| Country of Origin | TAIWAN |
| Speeds | 1sp |
| Size | 1/2x1/8 |
| Links | 112L |
| Material | DB |
| Color | Yellow |
| 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
