About The Product
- Prime 9 Technology is a counter-intuitive philosophy based on the less is more theory - it embraces range without adding complexity
- Compatible with standard HG style freehub bodies
- Ultra-wide ratio with consistent progression
- Cogs pinned to lightweight spiders
Experience exceptional versatility and performance with the Box Components Box Two Prime 9 Cassette 11-50t - the perfect upgrade for mountain biking, gravel riding, and adventure cycling enthusiasts. Crafted with innovative engineering and high-quality materials, this 9-speed cassette ensures smooth shifting, durable performance, and a wide gear range designed to conquer diverse terrains.
Materials & Construction
Built for durability and lightweight performance, the Box Two Prime 9 Cassette features hardened steel cogs pinned to precision-machined aluminum spiders, offering superior strength and resistance to wear. Its sleek black ED finish not only adds a stylish, modern aesthetic but also provides excellent corrosion resistance, ideal for all weather conditions.
Performance & Engineering
Designed with Prime 9 technology, this cassette offers fewer gears with wider spacing, simplifying setup and optimizing chainline alignment. The ultra-wide ratio spanning 11-50t ensures consistent gear progression for effortless climbs and high-speed descents. With the wide 11-50t range, cyclists benefit from versatile gear options, allowing for better cadence control and energy efficiency across varied terrains.
Components & Technology
Compatible with Shimano HG freehub bodies (8-11 speed compatible), the Box Two Prime 9 cassette delivers seamless integration with your existing drivetrain. The pinned cogs mounted on lightweight aluminum spiders reduce weight while maintaining maximum strength, enhancing overall ride quality. This cassette is ideal for mountain biking, gravel grinding, and adventure riding where reliable gear shifting and durability are paramount.
Style & Use Case
Featuring a sleek black finish, the Box Two Prime 9 Cassette not only performs at a high level but also complements a variety of bike styles - from rugged mountain bikes to versatile gravel rigs. Its wide gear range and robust construction make it perfect for challenging climbs, rapid descents, and extended rides on mixed terrains.
Innovative & Differentiating Features
- Wide Gear Range (11-50t): Facilitates effortless climbing and high-speed riding.
- Prime 9 Technology: Reduces complexity with fewer gears and wider spacing, improving setup and durability.
- Durable Materials: Hardened steel cogs and aluminum spiders balance weight and strength.
- Corrosion-Resistant Finish: Black ED coating for added longevity in harsh environments.
- Compatibility: Fits HG splined freehubs for easy installation across various bike setups.
Specifications:
- Speed: 9-speed
- Range: 11-50 teeth
- Cogs: 11, 13, 15, 18, 22, 28, 34, 42, 50
- Compatibility: Shimano HG freehub bodies (8-11 speed)
- Weight: 645g
- Color: Black
Upgrade your bike's drivetrain with the Box Components Box Two Prime 9 Cassette 11-50t, and enjoy seamless shifting, increased durability, and versatile gearing capability that elevates your riding experience across all terrains. Note: Available exclusively through authorized dealers for optimal performance and warranty coverage.
- Premium Materials and Engineering: Crafted with hardened steel cogs pinned to lightweight aluminum spiders, combined with an anodized black finish, ensuring durability, corrosion resistance, and a sleek aesthetic for rugged trail or road biking.
- Enhanced Performance and Compatibility: Designed with Prime 9 Technology for fewer gears with wider spacing, offering smoother shifting, improved chainline, and reduced wear, compatible with Shimano and SRAM HG splined freehubs (8-10 speed).
- Ultra-Wide Gear Range for Versatility: Features an 11-50 tooth cassette with a consistent gear progression, ideal for challenging climbs and fast descents, making it perfect for mountain biking, gravel cycling, and endurance riding.
- Precise Components and Advanced Technology: Utilizes cold-rolled steel and pinned cogs for reliable engagement, with wide or extra-wide range options available-perfect for riders seeking extended gear options and seamless power transfer.
- Stylish, Functional Design and Easy Installation: Finished in sleek black, this 9-speed cassette offers easy setup and compatibility with a wide range of bikes, making it a top choice for cyclists seeking high performance and long-lasting durability in their drivetrain.
| Specification | Value |
|---|---|
| Manufacturer | BOX COMPONENTS |
| Manufacturer Part No. | BX-CS2-P9A1150-BK |
| Universal Product Code | 639266097280 |
| Invoice Description | FH CASS BOX TWO PRIME 9 11-50 BK 9s |
| Shipping Weight | 1.61 lbs. |
| Package Dimensions | 8.65 x 8.5 x 2.1 |
| Country of Origin | TAIWAN |
| Range | 11-50t |
| Gears | 9sp |
| Cogs | 11-13-15-18-22-28-34-42-50 |
| Color | Black |
- 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
