About The Product
- CNC machined alloy hubs with sealed bearings and AL7075 machined axles
- Designed for freeride, downhill and general off road applications
- 6 bolt disc brake compatible
Upgrade your mountain biking setup with the Origin8 MT-3100.4 MTB Rear Hub, a high-performance component designed for demanding off-road adventures. Crafted from durable CNC-machined alloy, this rear hub offers superior strength and lightweight performance, making it ideal for freeride, downhill, and versatile off-road cycling applications.
Materials & Engineering Excellence
Constructed from aerospace-grade AL7075 aluminum, the Origin8 MT-3100.4 hub ensures exceptional durability and corrosion resistance. Its CNC-machined alloy construction provides precise craftsmanship for consistent performance. The sealed bearings protect internal components from dirt, water, and debris, ensuring smooth rotation even in the harshest trail conditions. The robust 12mm thru-axle (12TA) design guarantees increased stiffness and secure heel clearance.
Performance & Components
Designed for versatility, this hub supports an 8-11 speed cassette, making it compatible with a wide range of drivetrain options. The 6-bolt disc brake compatibility allows for confident stopping power, suitable for aggressive riding styles and downhill descents. With a 32-hole (32H) rim drilling pattern, it offers excellent strength and wheel stability for rugged terrains.
Innovative Features & Technology
The Origin8 MT-3100.4 features precise 48 and 58 PCD (Pitch Circle Diameter) bolt patterns, ensuring reliability and ease of installation with compatible hubs and sprockets. Its lightweight alloy construction combined with engineered components provides a perfect balance of strength and weight savings, optimizing your bike's handling and acceleration.
Style & Use Case
This black anodized hub adds a sleek, professional look to your bike while delivering high-end performance. Ideal for mountain bikers who demand durability, reliability, and precision, whether tackling downhill trails, technical freeride sections, or all-mountain adventures.
Key Benefits:
- CNC machined AL7075 alloy for durability and lightweight performance
- Sealed bearings for extended service life and smooth operation
- Compatible with 8-11 speed cassette for versatile gearing
- 6-bolt disc brake compatible for reliable stopping power
- 12mm thru-axle for enhanced stiffness and stability
- Suitable for freeride, downhill, and general off-road cycling
Enhance your mountain biking experience with the Origin8 MT-3100.4 Rear Hub-built to withstand the rigors of intense off-road riding while offering top-tier performance and style. Fits standard 12x142mm rims, making it a perfect upgrade or component replacement for serious cyclists.
- High-strength CNC machined alloy construction ensures durability and precision for demanding MTB rides and trail adventures.
- Sealed bearings provide excellent protection against mud, water, and debris, enhancing longevity and smooth performance in off-road conditions.
- Compatible with 8-11 speed cassette systems and 6-bolt disc brakes, offering versatile compatibility for various mountain bike builds and upgrades.
- Designed with 12mm thru-axle spacing and lightweight AL7075 machined axles, optimizing stiffness, stability, and weight savings on challenging terrains.
- Stylish matte black finish combines durability with sleek mountain biking aesthetics, perfect for aggressive trail riding, downhill, and freeride applications.
| Specification | Value |
|---|---|
| Manufacturer | ORIGIN8 |
| Universal Product Code | 888571115909 |
| Invoice Description | HUB RR OR8 MT3100.4 32x142x12mmTA 6B 8-11sCAS SB BK |
| Shipping Weight | 0.94 lbs. |
| Package Dimensions | 5.55 x 2.7 x 2.55 |
| HTS Number | 8714.93.3500C2 |
| Country of Origin | CHINA |
| Use | RR |
| Gears | 8-11s Cass |
| Spoke Count | 32H |
| Spacing / Axle | 12TA |
| Material | Aly |
| Color | Blk |
| Brake Type | 6B |
| OLD | 142 |
| PCD-L | 48 |
| PCD-R | 58 |
| Bearing Type | Sealed |
- Supplier:
- JBI
- MAP:
- Yes
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
-
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
