About The Product
- Factory replacement high-performance disc brake pads
- Organic materials with small amounts of metal
- Rotor friendly
Upgrade your bike's braking performance with the Koolstop D140 Clarks Skeletal / Magura Marta Semi-Metallic Brake Shoes - the perfect factory replacement for Magura Marta SL and Clarks Skeletal disc brakes up to 2008. Designed for cyclists who demand reliability, durability, and smooth stopping power, these high-performance brake pads utilize advanced materials and engineering to elevate your riding experience.
Materials & Engineering Excellence
Crafted from premium semi-metallic compounds, the Koolstop D140 brake shoes deliver superior braking force while maintaining rotor-friendly operation. The organic materials combined with small amounts of metal optimize heat dissipation and reduce brake squeal, ensuring consistent performance in demanding conditions. The steel backplate provides enhanced strength and durability, making these pads a long-lasting solution for serious cyclists and everyday riders alike.
Performance & Components
Built for optimal compatibility with Clarks Skeletal and Magura Marta, as well as Magura Marta SL brakes (up to 2008), these factory replacement pads are engineered for seamless installation and reliable engagement. The semi-metallic compound offers excellent modulation and consistent stopping power, even in wet or muddy conditions, providing riders with confidence when it counts most.
Style & Use Case
Designed with a sleek skeletal pad style, the Koolstop D140 ensures minimal weight without sacrificing strength. Perfect for mountain biking, cyclocross, and hybrid riding, these brake shoes excel in diverse terrains-from steep descents to technical trail sections. Their rotor-friendly composition helps extend the lifespan of your braking system, making them ideal for riders seeking performance and longevity.
Innovative & Differentiating Features
What sets the Koolstop D140 apart is its balance of organic and metallic materials, delivering high efficiency while protecting your disc rotors. Whether you're upgrading your existing setup or replacing worn pads, these brake shoes provide a reliable, high-quality solution that enhances your bike's braking efficiency and safety.
Choose Koolstop D140 Clarks Skeletal / Magura Marta Brake Shoes for exceptional stopping power, durability, and seamless compatibility. Experience improved control and confidence on every ride with these industry-leading semi-metallic brake pads.
- High-performance semi-metallic brake pads engineered for optimal stopping power and durability, compatible with Clarks Skeletal and Magura Marta disc brake systems from pre-2008 models.
- Constructed with a precise blend of organic materials and small metal particles, these Koolstop D140 pads provide reliable, rotor-friendly braking performance in various conditions, including wet and dry environments.
- Designed with steel backplates for enhanced stability and heat dissipation, ensuring consistent braking even during intense mountain biking or downhill rides.
- Factory replacement pads that meet or exceed OEM standards, offering an easy upgrade to improve braking efficiency, noise reduction, and pad longevity on your bike.
- Innovative semi-metallic compound technology delivers improved performance, reduced brake squeal, and greater pad lifespan, making them the ideal choice for serious cyclists seeking reliable, high-quality stopping power.
| Specification | Value |
|---|---|
| Manufacturer | KOOLSTOP |
| Manufacturer Part No. | KS-D140 |
| Universal Product Code | 760251076864 |
| Invoice Description | BRAKE SHOES K/S DISC MAG MARTA |
| Shipping Weight | 0.03 lbs. |
| Package Dimensions | 5.15 x 3.25 x 0.4 |
| Country of Origin | UNITED STATES |
| Pad Style ID | 17 |
| Compatibility | Clarks Skeletal / Magura Marta, Magura Marta SL Thru 2008 |
| Pad Material | Semi-Metallic |
| Compound | Standard |
| Brand | Kool-Stop |
| Backplate | Steel |
- 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
