HUB RR OR8 MT3100 36x142x12mmTA 6B 8-10sCAS SB BKRear hubs are convertible to QR - Endcaps/skewer sold separately. Forged alloy construction. Sealed Cartridge bearings. Double contact seals. 6-bolt disc. Item Specifications: Material, Aly, Color, Blk, Bearing Type, Sealed, Brake Type, 6B, Use, RR, Hub Drilling, 36H, CTF-R, 21, Spacing / Axle, 12TA, Bearing Size, 15x28x7, LTF-L, 35, CTF-L, 36, Bearing Model, 6902, LTF-R, 50, PCD-L, 58, Gears, 8-10s Cass, PCD-R, 58, OLD, 142,

Origin8 MT-3100 MTB Hubs Rear Hub 12x142 6 Bolt Disc HyperGlide 8/9/10 Speed Blk

Reference Number: 3CM9CS

Upgrade your mountain biking experience with the Origin8 MT-3100 MTB Rear Hub, engineered for durability, precision, and versatility. Designed specifically for 8-10 speed cassette setups, this high-performance hub is a perfect upgrade for aggressive trail riding, cross-country adventures, and rugged MTB excursions.

Materials & Construction

Made from lightweight yet robust forged alloy, the Origin8 MT-3100 Hub offers excellent strength-to-weight ratio, ensuring durability without adding unnecessary weight to your bike. Its rugged construction is built to withstand the rigors of demanding off-road terrain.

Performance & Engineering

Featuring sealed cartridge bearings with double contact seals, this hub provides exceptional protection against dirt, mud, and water, reducing maintenance and increasing longevity. The 12mm thru-axle compatibility (12TA) ensures enhanced stiffness and improved tracking on rough trails, delivering confident handling even in challenging conditions.

Components & Technology

Equipped with a 6-bolt disc brake interface, this hub is compatible with high-performance hydraulic and mechanical disc brakes, offering reliable stopping power across varied terrains. The hub's convertible rear design allows for quick-release (QR) conversion-end caps and skewer sold separately-providing flexibility for different bike setups and ease of maintenance.

Style & Use Case

Perfect for mountain bikers seeking a durable, high-performance hub that can handle intense trail riding, enduro, or all-mountain adventures. Its sleek black finish not only provides an understated, professional look but also resists corrosion and scratches, maintaining aesthetics over time.

Innovative Features

- Double contact sealed bearings for superior dirt and water resistance

- Forged alloy construction for durability and weight savings

- Convertibility to quick-release system for versatile rim compatibility

- 6-bolt disc rotor mounting for versatile braking options

Technical Specifications:

- Material: Aluminum Alloy (Aly)

- Flange Spacing: 3D to 4D (CTF-R 21, CTF-L 36)

- Axle Compatibility: 12mm thru-axle (12TA)

- Hub Body Length: 35mm (LTF-L), 50mm (LTF-R)

- Spoke Count: 36H

- Bearing Model: 142

- Compatibility: 8-10 Speed Cassette (CAS SB BK)

Upgrade your mountain bike's performance with the Origin8 MT-3100 MTB Rear Hub-crafted for riders demanding strength, precision, and reliability on every trail. Whether you're tearing up technical climbs or bombing down rugged descents, this hub is designed to keep you rolling confidently.

  • High-quality, keyword-rich, and SEO-friendly product bullets for the Origin8 MT-3100 MTB Hubs RR 36H Blk 8-10s Cass:
  • Durable forged alloy construction ensures lightweight strength and long-lasting performance for demanding mountain biking conditions.
  • Sealed cartridge bearings with double contact seals provide superior protection against dirt, mud, and water, enhancing hub longevity and reducing maintenance.
  • Convertible rear hub design allows easy switching between thru-axle (12mm TA) and quick-release (QR) compatibility, offering flexibility for various MTB setups (endcaps sold separately).
  • Features 6-bolt disc rotor compatibility for secure stopping power and versatile use with modern mountain bike braking systems.
  • Optimized for 8-10 speed cassette compatibility with precise 36H spoke count, enhancing wheel strength, stability, and ride performance on rugged trails.
Item Specifications
MaterialAly
UseRR
CTF-R21
Spacing / Axle12TA
LTF-L35
CTF-L36
Bearing Model142
LTF-R50
PCD-L58
Gears8-10s Cass
PCD-R58
OLD142

Why 365 Cycles?

365 Cycles is an Authorized Origin8 Dealer, and we offer the Full Origin8 Warranty!

Fast Shipping!

Professional Customer Service- available 7 days a week
Check out our 200,000+ amazing reviews!

365 Cycles delivers all your cycling needs fast! We don't waste time preparing your order. Our priority is to serve our customers first and foremost. If you need help picking the right product, have questions about bike component compatibility, or just want to geek out about bikes we are here 7 days a week! Simply put, we are bike experts from dirt to tarmac and want to make sure you get the full 365 Cycles experience when you shop with us.

At 365 Cycles our mission is to simplify the shopping experience. We want to get you the right product in a quick time frame and be here if you need help with questions, warranty, friend to talk to, etc.

We’re dedicated to building lasting relationships with our customers, communities, and team members. We combine the knowledge and service of a traditional bicycle shop with the convenience of shopping in your own home.





Shipping & Handling

Most orders placed during the workweek before 1:30 pm EST ship the same day, but in rare cases (peak season/holiday periods) handling time can take up to 48 hours. If you have questions regarding shipping estimates, please let us know prior to placing your order. There is a direct signature requirement for all orders over $500.

Please allow 1-2 business days for your order tracking to update.

  • Cut off for SAME DAY SHIPPING- 1:30 pm EST Monday - Friday
  • Friday afternoon -Sunday orders ship the following Monday
  • Due to carrier restrictions orders shipped to: PO Box, HI, AK, & PR 365 Cycles may use a comparable service to what was selected.

Combined Shipping Discounts

To offer customers savings on shipping, we offer discounts when shipping multiple items from our store. We cannot issue refunds on shipping once an order is finalized so please follow the 5 steps below and ask if you are having trouble with the discount before you make a purchase.

  1. Be sure you are using the US site: https://www.ebay.com
  2. Select Add to Cart (instead of Buy It Now) with items from our store 365Cycles
  3. Click on Proceed to Checkout. On the checkout page, the shipping service on each line item needs to match
  4. Compare First Class vs Priority as sometimes Priority can be cheaper and it gets to you faster!
  5. You’ll need to change the shipping method to Priority on every item in your cart before the rate can be calculated.

Returns

365 Cycles offers returns for 30 days on new items in their original, intact packaging. Return shipping for ALL orders are to be paid by the buyer. Please be sure to read our return policy entirely and if you have any questions, please contact Customer Service.

Full refunds are issued on items that are brand new and we are able to resell as new. 365 Cycles reserves the right to deny returns that are outside of policy including, but not limited to, used items, items missing original packaging, items with damaged manufacturer packaging, or international orders. Return orders must be shipped in a box or bubble mailer. Items shipped without an outer box will incur a restocking fee. You will be contacted through eBay if your return is ineligible for a full refund.

Returns must be initiated within 30 days from purchase date through your Purchase History under My eBay.

If we make an error in shipping, please contact us -- we will ship out the correct item and provide a free prepaid return label as quickly as possible!

Exchanges

If you need to exchange your order, the fastest and easiest way to do this is to reorder. We will ship your new order immediately and, in the meantime, please initiate a return through eBay on the original item and return it. We will refund for the returned item once it is received back.



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Company Details

365 Cycles
1180 Enterprise Rd
East Petersburg, PA 17520
United States

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