Shimano Miscellaneous Rear Derailleur PartsFor repairs on Shimano Rear Derailleur.

Shimano XTR RD-M9000 Rear Derailleur P-Axle & O-Ring | High-Performance Bike Maintenance

Reference Number: 1O90A0

Upgrade your mountain biking performance with the Shimano XTR RD-M9000 Rear Derailleur P-Axle Unit and O-Ring - the ultimate replacement part designed for durability, precision shifting, and optimal drivetrain efficiency. Crafted with high-quality materials and engineered for premium performance, this rear derailleur component seamlessly integrates into your Shimano XTR M9000 series drivetrain, ensuring smooth, reliable gear changes across challenging terrains.

Materials & Construction:

Constructed from lightweight yet durable high-grade aluminum and steel components, the Shimano XTR RD-M9000 P-Axle Unit offers exceptional strength and corrosion resistance. The included O-Ring provides a secure seal, protecting internal parts from dust, dirt, and moisture, which is critical for maintaining peak shifting performance in demanding mountain biking conditions.

Performance & Engineering:

Designed for precise, crisp shifting, the RD-M9000 Rear Derailleur P-Axle Unit ensures quick and reliable gear transitions under load. The engineering behind this component minimizes play and maximizes stiffness, resulting in improved chain stability and reduced derailleur noise. Ideal for serious MTB enthusiasts seeking consistent performance on rugged trails and technical descents.

Components & Technology:

This OEM-quality replacement includes the essential P-Axle and O-Ring, engineered to match Shimano's advanced derailleur technology. It supports Shimano's Shadow RD design for enhanced chain stability and improved frame clearance, making it suitable for aggressive riding styles and tough off-road conditions.

Style & Use Case:

Fitted seamlessly into Shimano XTR M9000 series rear derailleurs, this part is perfect for mountain bikers who demand durability and precision. Whether you're upgrading your existing setup or performing maintenance on your high-performance MTB, this component ensures your drivetrain remains responsive and reliable during mountain racing, trail riding, and enduro.

Innovative & Differentiating Features:

- OEM-grade replacement designed for seamless compatibility with Shimano XTR M9000 derailleurs

- Enhanced sealing with O-Ring to prevent dirt ingress and extend component lifespan

- Precision-engineered for optimal alignment, reducing derailleur wear and improving shifting accuracy

- Lightweight construction to minimize pedal bob and maintain efficient power transfer

Enhance your mountain biking experience with the Shimano XTR RD-M9000 Rear Derailleur P-Axle Unit and O-Ring - the essential upgrade for serious cyclists seeking dependable, high-performance drivetrain components for demanding terrain and long-lasting gear reliability.

  • Designed with high-quality lightweight aluminum and composite materials, the Shimano XTR RD-M9000 Rear Derailleur delivers exceptional durability and efficient shifting performance for demanding mountain biking conditions.
  • Engineered with Shimano's precise P-Axle technology, this rear derailleur ensures smooth, rapid gear changes and enhanced drivetrain stability, even on rugged trails and steep climbs.
  • Compatible with Shimano XTR M9000 series components, it features advanced Shadow RD+ technology for improved chain retention and reduced chain slap, extending component lifespan and ride quality.
  • Ideal for cross-country, trail, and enduro biking, this rear derailleur combines sleek, performance-oriented styling with a corrosion-resistant coating for reliable, long-lasting performance in diverse weather and terrain conditions.
  • Easy to install and maintain, the Shimano XTR RD-M9000 Rear Derailleur includes O-Ring seal to prevent dirt and water ingress, ensuring seamless operation and optimal performance during intense ride sessions.

Why 365 Cycles?

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

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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.



DP7687 .

Company Details

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

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