About The Product
- Wide range 9 speed multi-shift group with up to 3 gears per shift
- Simple durable performance without all the bells and whistles
- Includes 11-50t cassette, rear derailleur, shifter and chain
- Wide ratio with consistent progression
- Shifter offers 2pc pull lever with up to 3 gears per shift
- Glass fiber / nylon composite, steel and aluminum construction
- Matte black finish
Upgrade your mountain biking experience with the BOX Three Prime 9 X-Wide Multi Shift Groupset - the ultimate 9-speed drivetrain engineered for aggressive eMTB riding and rugged trail adventures. Designed for durability, precision, and wide gear coverage, this groupset ensures smooth shifting, enhanced performance, and increased reliability in demanding conditions.
### Materials & Performance Engineering
Constructed with high-quality, lightweight materials, the BOX Prime 9 Groupset delivers exceptional durability while reducing overall weight. The innovative design incorporates a robust limited-slip clutch in the X-Wide rear derailleur, engaging instantly to minimize chain slap, improve chain retention, and prevent dropped chains - ideal for aggressive riding and technical terrain. The 11-50t ultra-wide cassette offers a versatile gear range, facilitating effortless climbing and fast descents.
### Components & Technology
- X-Wide Rear Derailleur: Features a hydraulic clutch that maintains optimal chain tension, reducing noise and wear while increasing chain life.
- Multi Shift Shifter: Allows riders to shift up to three gears with a single lever movement, simplifying quick gear changes in dynamic riding situations.
- 11-50t Cassette: Provides an extensive gear range with smooth, consistent progressions, perfect for steep climbs and rapid terrain changes.
- Prime 9 Technology: Delivers the performance range of a 12-speed setup with fewer gears, reducing complexity, weight, and the potential for mechanical issues.
- Prime 9 Chain: Compatible with modern narrow/wide chainrings, resistant to stretching, and designed to decrease wear on the cassette and chainring, extending drivetrain longevity.
### Style & Use Case
Built for eMTB enthusiasts and trail riders who demand reliability and wide gear ratios, the BOX Prime 9 Groupset is optimized for challenging off-road conditions. Its sleek black finish offers a clean, professional look that complements any mountain bike build. Whether tackling mountain trails, rocky descents, or steep climbs, this groupset ensures confident, precise shifting and superior drivetrain durability.
### Innovative & Differentiating Features
- Single-Shift Options for eMTB: Specifically designed to prevent shifting multiple gears under load, significantly decreasing the risk of bent teeth and broken chains during intense rides.
- Reduced Parts & Weight: Fewer components streamline maintenance and reduce bike weight without compromising strength or reliability.
- Straight Chainline in Lower Gears: The drivetrain design minimizes the chain angle at low gears, enhancing efficiency and extending component lifespan.
### Compatibility & Specifications
- Gear Range: 9-speed, with an 11-50t wide-range cassette
- Compatibility: HG splined freehub (8-11 speed compatible)
- Color: Black
- Model: Box Three Prime 9
- Use Case: Designed for aggressive trail riding, enduro, and eMTB applications
Upgrade to the BOX Three Prime 9 X-Wide Multi Shift Groupset for seamless shifting, enhanced durability, and wide gear coverage. Perfect for riders seeking robust, high-performance components that perform reliably on demanding terrains.
Note: Third-party web sales must be through an authorized dealer.
- High-performance 9-speed groupset featuring durable, lightweight materials designed for rugged off-road and eMTB use.
- Innovative Prime 9 technology delivers a wide 11-50t cassette ratio with fewer gears, offering smooth, consistent gear shifts and a 12-speed-like range for versatile riding conditions.
- The X-Wide rear derailleur includes a limited slip clutch that minimizes chain slap, prevents dropped chains, and enhances chain engagement, ensuring reliable performance on challenging terrain.
- Equipped with advanced multi-shift shifters that allow riders to move up to three gears per shift, simplifying gear management and improving control during aggressive riding or technical descents.
- Crafted to fit HG splined Shimano/SRAM 8-10 speed freehubs, with a focus on reduced weight, increased durability, and compatibility with modern narrow/wide chainrings to extend component lifespan and reduce wear.
| Specification | Value |
|---|---|
| Manufacturer | BOX COMPONENTS |
| Manufacturer Part No. | BX-DT3-P9AMXW-KIT |
| Universal Product Code | 639266097488 |
| Invoice Description | GROUP KIT BOX THREE PRIME 9 X-WIDE/MULTI RD/TRIGGER-SHIFTER/CHAIN/CASS 11-50 |
| Shipping Weight | 4.64 lbs. |
| Package Dimensions | 11.9 x 10.3 x 7.4 |
| Country of Origin | CHINA |
| Color | Matte 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
