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 D635 Clarks Series High-Performance Disc Brake Pads - the trusted choice for serious cyclists and bike enthusiasts. Designed to deliver optimal stopping power and exceptional durability, these pads are compatible with a wide range of top-tier components including Clarks M1, M2, M3, CMD-22, CMD-23, CMD-27, FSA Afterburner, K-Force, Origin8 Vise Hyd PM, and Shimano Deore models.
Premium Materials for Reliable Performance
Crafted with high-grade semi-metallic compounds, the Koolstop D635 pads provide excellent friction levels that ensure consistent braking in diverse conditions. The organic blend with a small amount of metal offers a rotor-friendly design, minimizing wear and extending your rotor life. The steel backplates, featuring a distinctive red finish for organic pads and copper plating for sintered variants, contribute to the overall strength and heat dissipation, ensuring reliable braking under demanding riding conditions.
Advanced Engineering & Components
Built with precision, these factory-replacement pads utilize innovative semi-metallic materials that balance performance and longevity. The enhanced design features a durable steel backplate and a specially formulated compound that delivers superior modulation and stopping power. Whether you're navigating steep descents, sprinting on flat terrains, or riding in wet or muddy environments, these pads maintain optimal performance and responsiveness.
Versatile Use & Style Considerations
Ideal for mountain biking, cyclocross, or hybrid bikes, the Koolstop D635 pads are rotor-friendly and engineered to perform seamlessly across a variety of bike styles and riding disciplines. Their sleek design and reliable operation make them a perfect upgrade for riders seeking confidence-inspiring braking and safety.
Innovative & Differentiating Features
- Compatibility with multiple high-performance brake systems including Shimano Deore, SLX, XT, XTR, and FSA Afterburner, K-Force, and Origin8 Vise Hyd PM
- Versatile semi-metallic, semi-organic compound optimized for both everyday riding and demanding conditions
- Rotor-friendly design to extend brake component lifespan
- Easy-to-install factory replacement pads with superior stopping power and durability
Product Specifications:
- Pad Style ID: 21
- Material: Semi-Metallic with Organic/Steel Backing
- Compatibility: Clarks, FSA, Origin8, Shimano Deore, SLX, XT, XTR, and more
- Backplate: Steel (Red or Copper Plated)
- Model Name: Shimano (G-Type 2-Piston)
Upgrade your braking system with Koolstop D635 Clarks Series Brake Pads and enjoy smooth, reliable, and powerful stopping performance every ride. Perfect for riders who demand the best in durability, compatibility, and stopping power.
- High-performance organic and semi-metallic disc brake pads engineered by Koolstop for reliable stopping power across a variety of mountain bikes and road bikes, including Shimano Deore, FSA Afterburner, and Origin8 Vise Hydraulic systems.
- Constructed with durable steel backplates and advanced organic or semi-metallic compounds, these pads provide excellent modulation, heat dissipation, and rotor compatibility, ensuring consistent braking performance in diverse riding conditions.
- Designed for factory replacements, these pads deliver optimized friction levels and rotor-friendly performance, reducing wear and extending the life of your braking system for both daily commuting and aggressive trail riding.
- Featuring innovative materials such as ceramic backings for E-Bike models and copper-plated semi-metallic options for extreme durability, these pads are built to handle high-speed deceleration, descents, and wet conditions with confidence.
- Easy to install and compatible with multiple brake caliper models, the Koolstop D635 series provides a perfect balance of performance, style, and versatility to enhance your cycling experience and ensure safety on every ride.
| Specification | Value |
|---|---|
| Manufacturer | KOOLSTOP |
| Manufacturer Part No. | KS-D635 |
| Universal Product Code | 760251080052 |
| Invoice Description | BRAKE SHOES K/S DISC SHI XT SLX ORG M985/785/975 |
| Shipping Weight | 0.06 lbs. |
| Package Dimensions | 5.2 x 3.2 x 0.5 |
| Country of Origin | UNITED STATES |
| Pad Style ID | 21 |
| Compatibility | Clarks M1, M2, M3, CMD-22, CMD-23, CMD-27 / FSA Afterburner, K-Force / Origin8 Vise Hyd PM / Shimano Deore M615, SLX M666, SLX M675, XT M785, XTR M985, XTR M988, S700 (2011+), CX75 |
| 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
