ORIGIN8

Origin8 MT-4100 Aluminum MTB Rear Hub 36H, Sealed Bearings, QR 37291

$59.99
In Stock
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SKU:
37291
UPC:
072774372911
Condition:
New
Shipping:
Free Shipping (2-3 Business Days)
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About The Product

  • Aluminum hubs
  • Sealed bearing
  • Quick release

Upgrade your mountain biking setup with the Origin8 MT-4100 MTB Rear Hub 36H, engineered for durability, smooth performance, and versatile use across demanding trail conditions. Crafted from lightweight yet robust aluminum, this hub is designed specifically for reliable performance on rugged terrains, making it a perfect choice for serious riders seeking quality upgrades.

Materials and Construction:

Built with high-grade aluminum alloy, the Origin8 MT-4100 rear hub offers excellent strength-to-weight ratio, reducing rotational weight without sacrificing durability. Its sealed bearing system provides enhanced protection against dirt, mud, and water, ensuring consistent performance in all weather conditions.

Performance & Engineering:

Designed for 8-10 speed cassette compatibility, the hub features advanced sealed bearings (model 145) for smooth, low-friction rotation. With a quick-release axle setup (QR), installation and removal are quick and effortless, allowing for fast maintenance and wheel swaps. The 36-hole configuration ensures optimal strength and stability, supporting aggressive rides and heavy loads.

Components & Technology:

Equipped with a 135mm OLD (Over Locknut Dimension) and a 19mm internal width, the MT-4100 hub is built for standard mountain bike frames, providing an excellent foundation for upgraded wheels. The hub's precise specifications, including a 45mm PCD (Pitch Circle Diameter) for the flanges, guarantee compatibility with a variety of rim and spoke combinations to suit your riding style.

Style & Use Case:

Designed for mountain biking enthusiasts who demand reliable, high-performance components, this hub is ideal for trail riding, enduro, and all-mountain disciplines. Its sleek black finish adds a subtle, professional aesthetic to your bike, complementing any build while delivering the rugged performance needed for challenging terrains.

Innovative Features & Benefits:

- Sealed bearings for enhanced durability and low maintenance

- Aluminum construction for lightweight strength

- Quick-release axle for quick wheel changes

- 36-hole pattern for added strength and stability

- Compatibility with 8-10 speed cassettes for versatile gearing options

Enhance your mountain bike's performance with the Origin8 MT-4100 MTB Rear Hub - the reliable choice for aggressive trail riding, endurance, and everyday adventures. Optimize your wheelset today for exceptional durability, smooth operation, and effortless compatibility!

  • Lightweight Aluminum Construction for optimal strength-to-weight ratio, enhancing your MTB performance and reducing rotational weight.
  • Sealed bearing design provides superior durability and smooth rotation even in muddy or wet trail conditions, ensuring long-lasting performance.
  • Compatible with 8-10 speed cassette systems, offering versatile gearing options for aggressive trail riding or XC racing.
  • Quick-release axle allows for fast wheel removal and installation, ideal for bike maintenance, trail repairs, and on-the-go adjustments.
  • Modern engineering with 36H spoke count and standardized 135mm OLD spacing delivers reliable wheel stability and enhanced durability for rugged mountain biking adventures.
SpecificationValue
ManufacturerORIGIN8
Universal Product Code072774372911
Invoice DescriptionHUB RR OR8 MT4100 QR SF 36x135 8-10sCAS SB BK
Shipping Weight1.00 lbs.
Package Dimensions7.45 x 2.55 x 2.1
HTS Number8714.93.0500C2
Country of OriginCHINA
UseRR
Gears8-10s Cass
Spoke Count36H
Spacing / AxleQR
MaterialAly
ColorBlk
Brake TypeRIM
OLD135
PCD-L45
PCD-R45
LTF-L29
LTF-R48
CTF-L38.5
CTF-R19
Bearing TypeSealed
Axle Length145
Hole Diameter2.5
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:

  • The item must be in new, unused, and uninstalled condition.

  • All original packaging, tags, hardware, and accessories must be included and intact.

  • Items showing wear, installation marks, damage, or improper use cannot be accepted.

  • 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:

  1. You will receive a Return Authorization email with instructions.

  2. Print the prepaid label provided by us. ($9.99 will be deducted from your refund)

  3. 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:

  • Electronics with opened packaging or broken manufacturer seals

  • Any part that has been installed or shows installation attempts

  • Tools or chemicals that have been opened or unsealed

  • 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:

  • Alaska

  • Hawaii

  • Puerto Rico

  • 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.

  • We cannot ship hazardous materials or oversized items to military addresses due to carrier and military mail restrictions.

  • 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