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 Bike Performance with the Origin8 MT-3100.4 MTB Rear Hub - 36H Blk, 8-11 Speed Cassette
Enhance your mountain biking experience with the Origin8 MT-3100.4 Rear Hub, designed for durability, precision, and versatility in off-road and downhill riding. Built with high-quality materials and engineered for performance, this hub is ideal for riders seeking reliable components for freeride, downhill, and all-mountain adventures.
Materials & Construction:
Crafted from CNC-machined alloy (AL7075), the Origin8 MT-3100.4 hub offers exceptional strength-to-weight ratio and corrosion resistance, making it perfect for demanding trail conditions. Its sealed bearing system ensures smooth rotation and long-lasting performance, even in muddy or wet environments.
Performance & Engineering:
Designed for rigorous off-road use, this hub features a 12mm thru-axle (TA) for enhanced stability and stiffness. The 36-hole (36H) construction provides excellent wheel strength and durability, supporting a variety of riding styles. The hub is optimized for 8-11 speed cassette compatibility, giving you a wide gear range for conquering steep climbs and fast descents.
Components & Technology:
Equipped with 6-bolt disc brake compatibility, the Origin8 MT-3100.4 offers reliable stopping power for highly technical trails. The hub's precision CNC machining ensures tight tolerances and consistent engagement, maximizing efficiency during aggressive riding.
Style & Use Case:
With its sleek black finish, the Origin8 MT-3100.4 hub combines performance with a modern aesthetic, complementing a wide range of mountain bikes. Whether you're building a new wheelset or upgrading your existing setup, this hub is designed for aggressive trail riding, downhill racing, and freeride applications.
Innovative & Differentiating Features:
- CNC machined alloy construction for superior strength and lightweight performance
- Sealed bearings provide enhanced protection against dirt and water ingress
- Compatible with 8-11 speed cassette systems for versatile gear options
- Designed for 12mm thru-axle setups, offering increased stability and rider confidence
- 6-bolt disc brake compatibility for efficient stopping power in challenging terrains
Specifications:
- Material: Aluminum (AL7075)
- Use: Rear Hub (RR)
- Spacing / Axle: 12mm Thru-Axle (12TA)
- Flange Diameter (PCD-L): 48mm
- Drive Side PCD (PCD-R): 58mm
- Over Locknut Dimension (OLD): 142mm
- Number of Spokes: 36H
- Gear Compatibility: 8-11 speed cassette
Optimize your mountain bike build with the durable, high-performance Origin8 MT-3100.4 MTB Rear Hub - engineered to withstand the demands of aggressive off-road riding while delivering smooth, reliable operation. Perfect for riders looking to upgrade their wheelset with top-tier components that provide both style and performance on rugged trails.
- High-strength CNC machined alloy construction ensures durability and reliable performance in demanding off-road conditions.
- Sealed bearings provide smooth rotation and enhanced longevity, reducing maintenance for free-ride, downhill, and trail riding.
- Compatible with 8-11 speed cassette systems, offering versatile gearing options for various mountain biking disciplines.
- Designed with 12mm thru-axle (12TA) compatibility and 36-hole configuration, delivering increased stiffness for aggressive riding styles.
- Sleek black finish combined with modern engineering makes the Origin8 MT-3100.4 MTB hubs a stylish and functional upgrade for any mountain bike build.
| Specification | Value |
|---|---|
| Manufacturer | ORIGIN8 |
| Universal Product Code | 888571119259 |
| Invoice Description | HUB RR OR8 MT3100.4 36x142x12mmTA 6B 8-11sCAS SB BK |
| Shipping Weight | 0.94 lbs. |
| Package Dimensions | 5.5 x 2.55 x 2.55 |
| HTS Number | 8714.93.3500C2 |
| Country of Origin | CHINA |
| Use | RR |
| Gears | 8-11s Cass |
| Spoke Count | 36H |
| Spacing / Axle | 12TA |
| Material | Aly |
| Color | Blk |
| Brake Type | 6B |
| OLD | 142 |
| PCD-L | 48 |
| PCD-R | 58 |
| Bearing Type | Sealed |
- 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
-
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
