About The Product
- Designed to perfectly compliment KMC`s line of chains
- Carefully designed lifting and lowering shifting ramps ensure improved shifting, efficiency and stability
- Optimised gearing results in fewer large jumps in tooth count for smooth, predictable progressive shifting
- Shimano HG compatible interface
Discover the KMC REACT 10-Speed Cassette - the ultimate upgrade for seamless shifting and reliable performance on your mountain bike or gravel rig. Crafted from high-strength steel and engineered with precision, this black 11-36t cassette offers improved drivetrain efficiency, durability, and compatibility with Shimano HG freehub bodies.
Materials & Construction
Made from premium high-strength steel, the KMC REACT cassette is built to withstand the toughest climbs and descents. Its robust construction ensures long-lasting durability, even under extreme riding conditions, making it perfect for aggressive trail riding, enduro, or endurance adventures.
Performance & Engineering
Designed with meticulously engineered ascent and descent ramps, the REACT cassette guarantees smooth, precise shifting across all gears. The innovative lift and lower ramp system optimizes chain engagement and release, reducing friction and enhancing drivetrain efficiency. This upgrade results in quicker, more accurate gear changes with minimal chain noise and slippage.
Components & Technology
The 10-speed cassette features a varied gear range from 11 to 36 teeth, with cogs sized at 11, 13, 15, 17, 19, 21, 24, 28, 32, and 36t, offering versatile gear options for steep climbs and fast descents. Compatible with Shimano HG freehub bodies (8-11 speed), it ensures effortless installation and reliable lock-in for consistent performance. The optimized tooth profile and ramp design promote smoother shifting and precise chain retention, compatible with KMC chains such as e10, X10, X10 EL, and X10 SL.
Style & Use Case
Sleek black finish complements any bike aesthetic, while its versatile gear range makes it ideal for mountain biking, gravel riding, and adventure cycling. Whether conquering steep gradients or maintaining high speeds on descents, the REACT cassette provides the performance edge needed for competitive racing or recreational trail riding.
Innovative & Differentiating Features
- Precision-Engineered Ramps: Ensure smooth transition between gears for improved ride quality
- Optimized Gear Range: 11-36t gears suitable for diverse terrains and riding styles
- Compatibility: Seamless integration with KMC chains and Shimano HG freehubs
- Durability: High-strength steel construction for extended lifespan in demanding conditions
- Lightweight Design: Weighing only 493g, it enhances bike agility without sacrificing strength
Upgrade your drivetrain with the KMC REACT 10-Speed Cassette and experience unmatched shifting performance, enhanced durability, and exceptional value. Perfect for riders seeking reliable, high-performance components for challenging terrains.
- High-precision 10-speed KMC REACT cassette with an 11-36t gear range, designed for versatile mountain biking and gravel riding.
- Constructed from durable high-strength steel for enhanced longevity and reliable performance in demanding riding conditions.
- Optimized for Shimano HG freehub compatibility (8-11spd), ensuring seamless integration with a wide range of drivetrains and smooth shifting across the entire gear range.
- Features meticulously engineered ascent and descent ramps for precise chain guidance, reducing drivetrain friction and improving shifting efficiency on tough climbs or fast descents.
- Sleek matte black finish offers a stylish look and reduces glare, making this cassette ideal for both aggressive trail riding and everyday mountain biking adventures.
| Specification | Value |
|---|---|
| Manufacturer | KMC |
| Manufacturer Part No. | CSTE00516 |
| Universal Product Code | 766759000516 |
| Invoice Description | FH CASS KMC GMX10-1 11-36 BK 10s |
| Shipping Weight | 1.50 lbs. |
| Package Dimensions | 9.55 x 9 x 1.75 |
| Country of Origin | TAIWAN |
| Range | 11-36t |
| Gears | 10sp |
| Cogs | 11,13,15,17,19,21,24,28,32,36 |
| Color | Black |
| Model | GMX10-1 |
- 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
