About The Product
- Rear hubs are convertible to QR - Endcaps/skewer sold separately
- Aluminum alloy shells resist corrosion while being lightweight and dependable
- Sealed cartridge bearings offer smooth operation while resisting contaminents
- 12 speed, XDR compatible driver
Introducing the Origin8 MT-3100 MTB Hubs RR, 32H, Black - the ultimate choice for serious mountain bikers seeking durability, performance, and reliability. Crafted from premium aluminum alloy, these bicycle hubs are engineered for rugged trails and demanding rides, ensuring long-lasting strength and corrosion resistance in all weather conditions.
Materials & Components:
Constructed with lightweight aluminum alloy shells, the MT-3100 hubs combine robust durability with a low weight profile, perfect for mountain biking. Equipped with sealed cartridge bearings, these hubs deliver ultra-smooth rotation while effectively resisting contaminants such as dirt, mud, and water - essential for off-road terrain. The hubs feature a 12x100mm thru-axle (TA) compatibility and are designed for 12-speed XDR drivetrain systems, making them a versatile upgrade for modern mountain bikes.
Performance & Engineering:
Designed for high-performance mountain biking, the Origin8 MT-3100 hubs utilize sealed cartridge bearing technology to minimize friction and ensure consistent power transfer during aggressive rides. The hubs are optimized for 12-speed XDR compatibility, providing seamless integration with a broad range of high-end drivetrains. Their durable construction and sealed bearings make them suitable for various trail conditions, from steep descents to technical climbs.
Key Features & Benefits:
- Convertible Rear Hubs: Easily convert from thru-axle to quick-release (QR) compatibility with optional endcaps and skewers (sold separately).
- Corrosion-Resistant Aluminum Shells: Ensures longevity and dependable performance in harsh weather and trail environments.
- Sealed Cartridge Bearings: Provide smooth operation, reduce maintenance needs, and resist contaminants for enhanced durability.
- 12-Speed XDR Compatibility: Supports modern 12-speed drivetrains for optimized shifting performance and efficiency.
Style & Use Case:
The sleek black finish adds a streamlined, modern look to your mountain bike, making it ideal for trail riding, all-mountain, and enduro cycling. Whether you're upgrading your existing wheelset or building a custom setup, these hubs deliver the performance, reliability, and style needed for high-level mountain biking.
Innovative & Differentiating Features:
- Not convertible to QR (Quick Release), emphasizing a focus on modern thru-axle compatibility for increased stiffness and security.
- High-quality sealed bearings for enhanced longevity and smoother ride experience in challenging trail conditions.
- XDR driver compatibility for seamless integration with contemporary 12-speed systems, offering superior gear engagement and shifting precision.
Upgrade your mountain bike with the Origin8 MT-3100 MTB Hubs RR 32H Black - engineered for riders who demand strength, performance, and style on every trail. Optimize your ride with dependable hubs built to handle the demands of serious mountain biking.
- High-quality, SEO-friendly bullets for the Origin8 MT-3100 MTB Rear Hub RR 32H Blk 12s XDR Sealed Cartridge Bearings:
- Durable Aluminum Alloy Construction: Crafted from lightweight, corrosion-resistant aluminum alloy, these MTB hubs provide reliable performance in demanding off-road conditions, ensuring longevity and dependability on every ride.
- Advanced Sealed Cartridge Bearings: Equipped with sealed bearings to deliver smooth, efficient operation while effectively resisting dirt, water, and debris-ideal for challenging mountain biking environments.
- Compatible with 12-Speed XDR Drivetrains: Designed to support 12-speed Shimano XDR drives, these hubs maximize gear compatibility for seamless shifting and enhanced overall bike performance.
- Versatile Rear Hub Design: Features a 12mm thru-axle with optional quick-release endcaps (sold separately), allowing easy conversion for different bike frames and setup preferences without compromising durability or stiffness.
- Performance & Engineering Excellence: Engineered with precision components and modern technology to ensure optimal power transfer, minimal maintenance, and consistent performance during rugged trail rides or XC competitions.
| Specification | Value |
|---|---|
| Manufacturer | ORIGIN8 |
| Universal Product Code | 888571092446 |
| Shipping Weight | 0.58 lbs. |
| Package Dimensions | 5.5 x 2.55 x 2.55 |
| HTS Number | 8714.93.3500C2 |
| Country of Origin | CHINA |
| Use | RR |
| Gears | 11-12s XDR |
| Spoke Count | 32H |
| Spacing / Axle | 12TA |
| Material | Aly |
| Color | Blk |
| Brake Type | 6B |
| OLD | 142 |
| PCD-L | 58 |
| PCD-R | 58 |
| LTF-L | 36 |
| LTF-R | 50 |
| CTF-L | 35 |
| CTF-R | 21 |
| Bearing Type | Sealed |
| Axle Length | 142 |
| Hole Diameter | 2.5 |
- 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
