BOX COMPONENTS

BOX Four 8-Speed eBike Groupset Wide Rear Derailleur and 11-42t Cassette BX-DT4-08ASW-KIT

MSRP : $191.47
$147.29
(You save $44.18 )
In Stock
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SKU:
250503
UPC:
616043832326
Condition:
New
Shipping:
Free Shipping (2-3 Business Days)
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About The Product

  • Wide range 8 speed group based on the same simple principle of the Prime 9 groups
  • Includes 8s single shift derailleur, trigger shifter, chain and 11-42t cassette
  • Glass Fiber / Nylon Composite, Steel, Aluminum
  • Single shift per swing for E-bike safe shifting
  • Best paired with Box`s narrow/wide 8sp chainring

Discover the BOX Four 8-Speed Wide Single Shift eBike Groupset - the ultimate solution for reliable, low-maintenance riding with enhanced performance and versatility. Designed specifically for eBike enthusiasts, this durable and efficient groupset combines advanced engineering with a sleek, minimalist style, making it ideal for commuting, trail riding, or recreational cycling.

Materials & Construction

Built with high-quality steel and reinforced aluminum components, the BOX Four Groupset offers superior durability and resistance against the rigors of eBike riding. The lightweight yet robust materials ensure long-lasting performance while maintaining an optimized power-to-weight ratio.

Performance & Engineering

Engineered with BOX's "8 is Enough" drivetrain philosophy, this groupset provides smooth, precise shifting with minimal fuss. The 8-speed wide-range 11-42T cassette offers ample gear options to tackle various terrains, from steep climbs to fast descents. The rear derailleur features a sophisticated Limited Slip clutch and a compact cage design, ensuring chain stability, reduced derailleur noise, and enhanced chain retention even under load.

Components & Technology

- Wide 11-42T Cassette: Compatible with HG freehub bodies, delivering a broad gear range for versatile riding.

- Reinforced 8-Speed Chain: Designed to withstand the demands of eBike use, compatible with wide/narrow chainrings for optimal shifting performance.

- Compact Rear Derailleur: Features a more streamlined cage coupled with a Limited Slip clutch, improving chain control and reducing drop-outs.

- Single Shift Option: Recommended for eBike applications, simplifying gear changes with a reliable, no-nonsense shifter for effortless operation.

Style & Use Case

With its clean, streamlined design, the BOX Four groupset complements a variety of eBike styles - from urban commuters to mountain explorers. Its simplified single-shift setup reduces complexity, making it ideal for riders seeking straightforward, dependable shifting performance on everyday rides or challenging terrains.

Innovative & Differentiating Features

- Compact derailleur cage enhances ground clearance and overall bike aesthetics.

- Built-in clutch mechanism offers optimal chain tension and noise reduction, perfect for high-torque eBike systems.

- Wide gear range with fewer gears simplifies operation and reduces maintenance needs.

Upgrade your eBike with the BOX Four 8-Speed Wide Single Shift Groupset - engineered for durability, performance, and effortless riding. Whether commuting or conquering trails, enjoy smooth, reliable gear changes with a setup designed for less fuss and maximum confidence.

  • Lightweight and durable construction with high-quality steel and alloy components ensuring long-lasting performance on eBikes.
  • Optimized for smooth, precise shifting with BOX's innovative single-shift design, reducing complexity and enhancing reliability, perfect for urban and trail riding.
  • Features a compact rear derailleur cage with a Limited Slip clutch that prevents chain slap and drops, improving drivetrain stability across rough terrain.
  • Includes an 11-42t wide-range cassette compatible with HG freehub bodies, providing versatile gearing for climbing steep inclines or tackling flat terrain.
  • Designed with a minimalist, aggressive style suitable for modern eBike aesthetics, offering effortless shifting and maintenance with fewer gears for less fuss.
SpecificationValue
ManufacturerBOX COMPONENTS
Manufacturer Part No.BX-DT4-08ASW-KIT
Universal Product Code616043832326
Invoice DescriptionGROUP KIT BOX FOUR 8s WIDE/SINGLE E-BIKE
Shipping Weight4.21 lbs.
Package Dimensions11.85 x 10.55 x 7.3
Country of OriginUNITED STATES
ColorMatte Black
Supplier:
JBI
Color:
Black

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:

  • The item must be in new, unused, and uninstalled condition.

  • All original packaging, tags, hardware, and accessories must be included and intact.

  • Items showing wear, installation marks, damage, or improper use cannot be accepted.

  • 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:

  1. You will receive a Return Authorization email with instructions.

  2. Print the prepaid label provided by us. ($9.99 will be deducted from your refund)

  3. 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:

  • Electronics with opened packaging or broken manufacturer seals

  • Any part that has been installed or shows installation attempts

  • Tools or chemicals that have been opened or unsealed

  • Open‑box items with destroyed or missing packaging

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

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:

  • Alaska

  • Hawaii

  • Puerto Rico

  • 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.

  • We cannot ship hazardous materials or oversized items to military addresses due to carrier and military mail restrictions.

  • 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