Skip to product information
1 of 4

Shimano GRX RD-RX825 Di2 Rear Derailleur - 12-Speed Long Cage With Clutch For 2x BLK

Shimano GRX RD-RX825 Di2 Rear Derailleur - 12-Speed Long Cage With Clutch For 2x BLK

In Stock
Retail Price $409.99
Shipping calculated at checkout.

Product Features

Shimano GRX RD-RX825 Di2 Rear Derailleur - 12-Speed Long Cage With Clutch For 2x Black. Shimanos GRX RX825 Di2 12-speed rear derailleur features a built-in wireless connectivity unit and charging port ensuring fast and reliable shifting for mixed-terrain riding and easy recharging. Integrated Shadow RD+ technology prevents chain slap and ensures precise shifting even on rough terrain. Thanks to built-in ON/OFF switch wheel removal is easy too. The RD-RX825 is compatible with 11-34t and 11-36t 12-speed cassettes and supports Full or Semi-Synchronized shift modes enhancing rider customization.
  • Integrated wireless unit charging port and switch allows a compact design
  • Offers fast and reliable shifting on rough terrain
  • Adjustable chain stabilizer prevents chain slap
  • Shimano Shadow RD+ offers a quiter drivetrain by utilizes a stablizer to reduce chain slap and provides a simple solution for chain drops
  • Gravel-tuned clutch tension features a switch stabilizer ON/OFF to match terrain - ON for gravel OFF for smooth roads
  • LED status indicator to easier identify battery life pairing adjust mode etc.
  • Top sprocket: Max. 11t/Min. 11t
  • Low sprocket: Max. 36t/Min. 34t
  • Total Capacity: 40t
    • TECH SPECS
    Largest Cog 36Rear Der/Shifter Compatibility Shimano Road Di2Rear Derailleur Mount Type 10x1 StandardRear Derailleur Mount Type Shimano Rear Direct MountDrivetrain Speeds 12Chain Wrap Capacity (teeth) 40Cage Length LongColor Black

    Shipping & Returns

    We offer a variety of shipping options based on the delivery location. Once you add items to your cart and enter a shipping address, you’ll see eligible options with pricing and estimated delivery dates. See below for frequently asked questions.

    Depending on the product shipping can take up to two-weeks? Please call if you need an item by a specific date as some of our products like bikes could be at different warehouse locations.


    Do you offer free shipping?
    Most orders over $50 ship free to the continental U.S. See our Free Shipping page for more information.  


    Do you ship internationally?
    Yes! Check out our International Shipping page for details.


    Can I pickup my order from one of Goodwynns stores?
    We offer in-store pickup at all our U.S. Store Locations. See more information on our In-store Pickups page.


    How quickly will my items ship?
    If your order is placed by 1pm (PT) Monday – Friday and you’ve selected an expedited (i.e. paid) shipping method, your items will ship same day if they’re in stock and ready to ship.

    Most other items ship within 1-2 business days. However, some products (e.g. bikes) require additional handling time up to 5 business days.


    How long will it take to receive my items?
    Shipping times vary based on delivery address and the shipping method selected in checkout.

    Once you add items to your cart and enter a shipping address, you can see estimated delivery dates by shipping method. After you’ve purchased, you can see the estimated delivery date on your order confirmation email.

    After your order has shipped, you can track your order via the tracking # provided in your shipping confirmation email and in your Order History.


    Can I use a package forwarder?
    Yes, but please be aware that Goodwynns and our partners cannot be held liable for damage that may occur after the items are delivered to the shipping address provided at the time of purchase.


    Does Goodwynns ship to PO boxes, APO, and FPO addresses?
    We happily ship to PO boxes, APO, and FPO addresses. However, shipping to these addresses can increase delivery time (up to 8 weeks in some cases) and free shipping offers do not apply.  Please note, products with lithium batteries cannot be shipped to APO/FPO addresses. 

    We can also ship to 3rd party boxes. Simply provide the address and box number when placing your order.


    How are larger items like skis, surfboards, and bikes shipped?
    Some products require special processing and shipping arrangements due to their large size. Pricing is set by product type and shipping service required.

    See our Freight and Oversized page for details.


    Do all brands ship outside the U.S.?
    Unfortunately, Goodwynns is unable to ship all products outside of the United States due to contractual restrictions. See all items that ship to Canada and Worldwide.  


    Do you require a signature for delivery?
    Most shipments are delivered without requiring a signature. Please Contact Us to request that a signature be required.

    Still need help? Contact Us

    Tech Specs

    Tech Default Content

    donate

    Donate

    None of the work POW does is possible without the help of the Outdoor State™, the 175 million people who love the outdoors. Here’s how we can make an impact together.

    United States Dollar | $USD
    $
    View full details
    Border Border

    Frequently asked questions

    Do I Need an ID?

    Lorem Ipsumis simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book.

    Bike Responsibility

    Lorem Ipsumis simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book.

    E-Bikes

    Lorem Ipsumis simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book.

    Bike Transportation

    Lorem Ipsumis simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book.

    Do I Need to be 18+?

    Lorem Ipsumis simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book.

    Can I Purchase a demo Bike?

    Lorem Ipsumis simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book.

    Cancel a Reservation?

    Lorem Ipsumis simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book.

    Credit Card Payment

    Lorem Ipsumis simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book.