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 with the Origin8 MT-3100.4 MTB Rear Hub - the perfect blend of durability, performance, and innovative engineering for off-road enthusiasts. Crafted from high-quality CNC-machined alloy, this 32H rim brake rear hub ensures lightweight strength and exceptional reliability on demanding trails.
Materials & Construction:
Constructed from premium aluminum alloy with CNC machining, the Origin8 MT-3100.4 hub features sealed bearings that provide smooth rotation and superior protection against dirt, mud, and water. The AL7075 machined axle enhances durability while keeping weight to a minimum, making it ideal for aggressive freeride, downhill, and all-mountain riding.
Performance & Engineering:
Designed to handle the rigors of off-road Riding, this hub is compatible with 12-speed XDR freehub systems, ensuring seamless gear engagement and optimal power transfer. Its 142mm OLD (Over Locknut Dimension) and 12mm thru-axle setup offer a secure, stiff connection to your frame, improving overall handling and responsiveness on technical descents.
Components & Technology:
Compatible with 6-bolt disc brakes, the MT-3100.4 features precise PCD (Pitch Circle Diameter) measurements - 48mm PCD on the left and 58mm on the right - for reliable engagement and brake performance. The hub supports a 12-speed XDR driver body, ensuring compatibility with a wide range of modern drivetrains for versatile riding setups.
Style & Use Case:
With its sleek black finish and durable alloy construction, this hub combines style with function, making it suitable for aggressive riding styles and rugged terrain. Whether you're conquering steep downhill descents, tackling challenging freeride trails, or exploring mountain bike trails, the MT-3100.4 ensures a dependable performance every ride.
Innovative Features:
- CNC machined aluminum alloy construction for lightweight strength
- Sealed bearings for enhanced longevity and maintenance-free operation
- AL7075 axle for increased durability under high-impact loads
- 12-speed XDR compatibility for future-proof drivetrain compatibility
- 6-bolt disc brake mounting for versatile stopping power
- Designed specifically for off-road, freeride, and downhill applications
Enhance your mountain bike's performance with the Origin8 MT-3100.4 MTB Rear Hub - engineered for trail warriors seeking reliability, precision, and style in their cycling equipment.
- High-strength CNC machined alloy construction with sealed bearings for long-lasting durability and smooth rotation.
- Designed for aggressive riding styles, these Origin8 MT-3100.4 MTB hubs excel in freeride, downhill, and off-road mountain biking scenarios.
- Features lightweight AL7075 machined axles and 12-speed XDR freehub compatibility, optimizing power transfer and gear engagement for performance rides.
- Compatible with 6-bolt disc brakes, offering versatile stopping power for technical descents and trail rides.
- Engineered with a 12x142mm thru-axle spacing and robust 32-hole build, providing excellent stability and wheel integrity on rugged terrains.
| Specification | Value |
|---|---|
| Manufacturer | ORIGIN8 |
| Universal Product Code | 888571121610 |
| Invoice Description | HUB RR OR8 MT3100.4 32x142x12mmTA 6B 12sXDR SB BK |
| Shipping Weight | 0.92 lbs. |
| Package Dimensions | 5.5 x 2.65 x 2.55 |
| HTS Number | 8714.93.3500C2 |
| Country of Origin | CHINA |
| Use | RR |
| Gears | 12s XDR |
| 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
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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
