About The Product
- 12-speed wide range MTB cassette
- Steel construction with alloy spider and spacers
Experience the ultimate performance and versatility with the Sunrace CS-MZ80 12-Speed Cassette, designed specifically for aggressive mountain biking and difficult trail conditions. Engineered for durability, precision, and wide-range gearing, this cassette is the perfect upgrade for serious MTB enthusiasts seeking reliable shifting and enhanced power transfer.
Materials & Construction
The Sunrace CS-MZ80 features a robust steel construction that ensures long-lasting performance under demanding riding conditions. Its alloy spider and spacers provide a lightweight design without compromising strength, contributing to improved acceleration and handling on steep climbs and technical terrain. The combination of durable steel cogs and lightweight alloy components delivers a balanced build optimized for aggressive MTB riding.
Performance & Engineering
Designed with a 12-speed wide-range gear setup, this cassette offers an extensive 11-50T gear ratio, enabling riders to conquer steep ascents and accelerate on flat terrain with ease. The engineer-designed 11-50T cogset ensures smooth, reliable shifting across all gears, minimizing chain skip and maximizing power transfer with each pedal stroke. Whether you're tackling challenging mountain trails or riding mountainous terrain, the CS-MZ80 provides the versatility and responsiveness needed for high-performance off-road adventures.
Components & Technology
Equipped with precisely machined steel cogs and alloy spacers, the Sunrace CS-MZ80 guarantees consistent gear engagement and minimal wear over time. The 12-speed configuration facilitates compatible, compatible shifting with high-quality derailleurs and shifters, providing seamless gear transitions for confident riding. Its durable build ensures minimal maintenance, even after extensive off-road use.
Style & Use Case
Ideal for mountain bikers, trail riders, and enduro enthusiasts, the Sunrace CS-MZ80 cassette delivers dependable performance in diverse riding conditions. Its sleek, black finish complements a wide range of MTB setups, while the wide gear range maximizes trail efficiency and climbing ability. Whether you're racing downhill or exploring rugged mountain routes, this cassette is your reliable partner for demanding outdoor adventures.
Key Features:
- 12-speed wide-range cassette (11-50T) for versatile mountain biking performance
- Heavy-duty steel cogs combined with lightweight alloy spider and spacers
- Engineered for smooth, reliable shifting across diverse terrain
- Durable construction for long-lasting performance in tough off-road conditions
- Compatible with MTB drivetrains seeking high performance and wide gear range
Upgrade your mountain bike with the Sunrace CS-MZ80 12-Speed Cassette and elevate your off-road riding experience. Enjoy enhanced durability, superior performance, and limitless climbing capability with this innovative MTB component.
- High-precision 12-speed MTB cassette featuring an extensive 11-50t gear range for versatile trail and downhill riding, enabling seamless shifts across steep climbs and rapid descents
- Constructed from durable steel with an alloy spider and spacers, this cassette offers exceptional strength, corrosion resistance, and lightweight performance for demanding mountain biking conditions
- Engineered with Sunrace's advanced gear technology, the CS-MZ80 ensures smooth, reliable shifting and minimal drivetrain wear, enhancing overall bike efficiency and longevity
- Designed for wide-range gearing and aggressive use, this cassette is compatible with 12-speed Shimano-compatible drivetrains, making it ideal for adventure, enduro, and trail riders
- Innovative construction combines durability with style, featuring a sleek black finish and optimized tooth profiles for quiet operation and improved chain engagement across the entire gear spectrum
| Specification | Value |
|---|---|
| Manufacturer | SUNRACE |
| Manufacturer Part No. | CSMZ80.WA5B.XS0.BX |
| Universal Product Code | 4710944259957 |
| Invoice Description | FH CASS SUNRACE CSMZ80 11-50 M-SL 12s |
| Shipping Weight | 1.69 lbs. |
| Package Dimensions | 9.55 x 8.55 x 2.1 |
| HTS Number | 8714.93.7030 |
| Country of Origin | TAIWAN |
| Range | 11-50t |
| Gears | 12sp |
| Cogs | 11,13,15,17,19,21,24,28,32,36,42,50 |
| Color | Silver |
| Weight | 702g |
- 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
-
Storefront name: Bike Junkies
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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
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
