About The Product
- Aluminum hubs
- Loose ball
- Bolt-on
- Rear flip-flop
Elevate your BMX riding experience with the Wheel Master MX-4000 BMX Rear Hub, engineered for durability, precision, and style. Designed specifically for BMX enthusiasts seeking reliable performance and easy customization, this 28H black bolt-on rear hub is your perfect upgrade for stunt riding, racing, or freestyle BMX.
Materials & Construction:
Constructed from high-quality aluminum, the Wheel Master MX-4000 ensures lightweight strength, optimal durability, and corrosion resistance. Its sleek black finish not only provides a modern, aggressive look but also withstands the rigors of intense BMX riding and weather conditions.
Performance & Engineering:
Featuring a loose ball bearing system, this hub delivers smooth rotation and reduced friction, enhancing your bike's speed and responsiveness. The flip-flop design allows for versatile use, making it suitable for both fixed gear and freewheel configurations, ideal for riders who value adaptability and customization.
Components & Technology:
Equipped with a 3/8x26t bolt-on axle and 28-spoke flange (LTF-L 28, PCD 45mm), the MX-4000 provides a secure fit and excellent wheel strength. The 180-degree bearing model ensures long-lasting performance and minimal maintenance, while the 27T chain thread ratio aligns with standard BMX setups for seamless compatibility.
Style & Use Case:
With its robust construction and classic black aesthetic, this hub complements a wide range of BMX styles-from street riding and dirt jumps to park freestyle. Its rear flip-flop design offers the convenience of switching between fixed gear and freewheel setups, catering to riders who demand flexibility in their riding style.
Innovative Features:
The bolt-on assembly not only enhances wheel security but also simplifies installation and removal, saving time during maintenance or wheel swaps. Its precise engineering and quality components guarantee consistent performance, making it a reliable choice for both professional BMX racers and recreational riders.
Upgrade your BMX wheelset with the Wheel Master MX-4000 BMX Rear Hub - the perfect blend of performance, durability, and style for serious riders who demand the best.
- High-quality, keyword-rich, and SEO-friendly bullets for the Wheel Master MX-4000 BMX Hubs RR 28H Blk 1s FW/FW:
- Premium aluminum construction ensures lightweight durability and corrosion resistance for rugged BMX riding and racing conditions
- Features a loose ball bearing system and bolt-on design for smooth performance, easy maintenance, and a secure, reliable fit on your BMX bike
- Designed with a rear flip-flop hub allowing for versatile gear setups and simplifying gear ratio changes for increased riding flexibility
- Optimized for BMX racing with 28-hole drilling and precise specifications like 3/8-inch axles and 27-28cm flange distances for excellent wheel strength and stability
- Innovative components including high-quality bearings and bolt-on technology provide excellent performance, ensuring your BMX wheels are responsive, dependable, and built for competitive or casual riding
| Specification | Value |
|---|---|
| Manufacturer | WHEEL MASTER |
| Universal Product Code | 888571007754 |
| Invoice Description | HUB RR WM MX4000 BO SF 1sF/F 28x3/8 BK |
| Shipping Weight | 0.73 lbs. |
| Package Dimensions | 6.55 x 2.95 x 2.15 |
| HTS Number | 8714.93.3500C2 |
| Country of Origin | CHINA |
| Use | RR |
| Gears | 1s FW/FW |
| Spoke Count | 28H |
| Spacing / Axle | B/O-NUT 3/8x26t |
| Color | Blk |
| Brake Type | RIM |
| OLD | 110 |
| PCD-L | 45 |
| PCD-R | 45 |
| LTF-L | 28 |
| LTF-R | 28 |
| CTF-L | 27 |
| CTF-R | 27 |
| Axle Length | 180 |
| Hole Diameter | 2.5 |
- 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
-
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
