Skip to content
  • 💰 Discounts + free shipping = 💰
  • 💰 Discounts + free shipping = 💰
Dolan Bike StoreDolan Bike Store
    • No products in the cart.

      Return to shop

  • Cart

    No products in the cart.

    Return to shop

  • Components
    • Bottom Brackets
    • Tyres
    • Pedals
    • STi Levers
    • Rear Derailleurs
    • Chainsets
    • Handlebars
    • Saddles
    • Bike Cassettes
    • Di2 Extras
    • Front Derailleurs
    • Chains
    • Disc Brake Rotors
    • Stems
    • Chainrings
  • Bike Wear
    • Cycling Sunglasses
    • Bicycle Helmets
    • Road Cycling Shoes
    • Cycling Bibs & Shorts
    • Cycling Jerseys
  • Frameset Parts
    • Bike Dropouts
    • Bike Seatposts
    • Bike Headsets
    • Forks
    • Seat Post Clamps
    • Bike Bolts
    • Front Mech Clamps
    • Fork Expander
    • Bike Decals
  • Wheels
    • Track Bike Wheels
    • Road Bike Wheels
  • Accessories
    • Muc-Off
    • Bike Bags & Racks
    • Bike Lights
    • Bike Computers & GPS
    • Bike Tools & Maintenance
    • Bike Pumps
    • Bike Mudguards
    • Datatag Security
    • Bike Locks
    • Bike Water Bottles Cages
Sale!
GRX RD-RX815-DI2 - (34T) Rear Derailleur
Components / Rear Derailleurs

GRX RD-RX815-DI2 – (34T) Rear Derailleur

$284.99 Original price was: $284.99.$96.99Current price is: $96.99.

SKU: 010-244 Categories: Components, Rear Derailleurs
  • Free Shipping over $25
  • Fast & reliable delivery options
  • Enjoy top quality items for less
  • Multiple safe payment methods
Browse
  • Accessories
    • Bike Bags & Racks
    • Bike Computers & GPS
    • Bike Lights
    • Bike Locks
    • Bike Mudguards
    • Bike Pumps
    • Bike Tools & Maintenance
    • Bike Water Bottles Cages
    • Datatag Security
    • Muc-Off
  • Bike Wear
    • Bicycle Helmets
    • Cycling Bibs & Shorts
    • Cycling Jerseys
    • Cycling Sunglasses
    • Road Cycling Shoes
  • Components
    • Bike Batteries
    • Bike Cassettes
    • Bottom Brackets
    • Brake Calipers
    • Chainrings
    • Chains
    • Chainsets
    • Cranks
    • Di2 Extras
    • Disc Brake Rotors
    • Front Derailleurs
    • Groupsets
    • Handlebar Tape
    • Handlebars
    • Pedals
    • Rear Derailleurs
    • Saddles
    • Sprockets
    • Stems
    • STi Levers
    • Tyres
  • Frameset Parts
    • Bike Bolts
    • Bike Decals
    • Bike Dropouts
    • Bike Headsets
    • Bike Seatposts
    • Fork Expander
    • Forks
    • Front Mech Clamps
    • Seat Post Clamps
  • Uncategorized
  • Wheels
    • Road Bike Wheels
    • Track Bike Wheels
Recently Viewed
  • Sugino SG75 DD2 Chainset & Bottom Bracket (ZEN) Sugino SG75 DD2 Chainset & Bottom Bracket (ZEN) $341.00 Original price was: $341.00.$97.99Current price is: $97.99.
  • Description
  • Reviews (0)
Product Information

Highly versatile, this stunning model’s chain stabiliser prevents chain slapping and drops as you conquer every road. You’ll notice its silent and uninterrupted rear shifting on especially harsh terrains, where other rear mechs could struggle. What’s also very impressive is its switch stabiliser which provides you with the freedom to turn it on/off to match the terrain conditions.

Featuring the revolutionary Di2 shifting system, this rear mech delivers instant, accurate, lightning-fast shifts on every run. At the push of a button, you can maintain precise control even in the most extreme conditions with its electronic brain keeping you in charge. Additionally, you can change gear even under heavy load while climbing or accelerating making it perfect for tough rides.

Smooth and reliable on mixed surfaces, its gravel-tuned clutch tension is ready to conquer all the challenges of a long ride out. Whether you’re riding after work with your buddies or exploring new and unpredictable surroundings, this 2×11 speed version won’t let you down.

Product Data
Speed: 11 Speed
Commuter: Yes
Cyclocross: Yes
Road: Yes

Reviews

There are no reviews yet.

Be the first to review “GRX RD-RX815-DI2 – (34T) Rear Derailleur” Cancel reply

Related products

Sale!
Vittoria Pista Control Tubular Para BLK Tyre (23-28)
+
Quick View

Components

Vittoria Pista Control Tubular Para BLK Tyre (23-28)

$109.99 Original price was: $109.99.$76.99Current price is: $76.99.
Sale!
Shimano PD-EH500 SPD Touring Dark Grey Pedals
+
Quick View

Components

Shimano PD-EH500 SPD Touring Dark Grey Pedals

$59.99 Original price was: $59.99.$41.99Current price is: $41.99.
Sale!
Vittoria Pista Speed G+ Tubular 700x23 Tyre
+
Quick View

Components

Vittoria Pista Speed G+ Tubular 700×23 Tyre

$129.98 Original price was: $129.98.$90.99Current price is: $90.99.
Sale!
Ultegra R8000 11 Speed Cassette - 11/30
+
Quick View

Bike Cassettes

Ultegra R8000 11 Speed Cassette – 11/30

$89.99 Original price was: $89.99.$62.99Current price is: $62.99.
Sale!
Shimano 105 R7000 Cassette - 11/32
+
Quick View

Bike Cassettes

Shimano 105 R7000 Cassette – 11/32

$59.99 Original price was: $59.99.$41.99Current price is: $41.99.
Sale!
Campagnolo Power Torque Intergrated Cups BB30 68x42 Bottom Bracket
+
Quick View

Bottom Brackets

Campagnolo Power Torque Intergrated Cups BB30 68×42 Bottom Bracket

$29.99 Original price was: $29.99.$20.99Current price is: $20.99.
Sale!
Shimano 12s 105 R7120 Groupset (Disc)
+
Quick View

Components

Shimano 12s 105 R7120 Groupset (Disc)

$351.00 Original price was: $351.00.$95.99Current price is: $95.99.
Sale!
Shimano 105 CS-R7100 12 Spd Cassette - 11/36
+
Quick View

Bike Cassettes

Shimano 105 CS-R7100 12 Spd Cassette – 11/36

$84.98 Original price was: $84.98.$59.49Current price is: $59.49.
LEGAL
  • Privacy Policy
  • Shipping Policy
  • FAQ
  • Returns & Exchanges
  • Term and Conditions
CUSTOMER SERVICE
  • My account
  • Delivery
  • Payment Method
  • Contact Us
  • About Us
Signup for Newsletter

Sign up for exclusive offers, original stories, events and more.

    Top rated products
    • Deda S-DCR COVER KIT Deda S-DCR COVER KIT $29.99 Original price was: $29.99.$20.99Current price is: $20.99.
    • GXT Dropout GXT Dropout $39.98 Original price was: $39.98.$27.99Current price is: $27.99.

    Build your perfect ride with precision, style, and every component designed for performance.

    2026 © Dolan Bike Store

    • Components
      • Bottom Brackets
      • Tyres
      • Pedals
      • STi Levers
      • Rear Derailleurs
      • Chainsets
      • Handlebars
      • Saddles
      • Bike Cassettes
      • Di2 Extras
      • Front Derailleurs
      • Chains
      • Disc Brake Rotors
      • Stems
      • Chainrings
    • Bike Wear
      • Cycling Sunglasses
      • Bicycle Helmets
      • Road Cycling Shoes
      • Cycling Bibs & Shorts
      • Cycling Jerseys
    • Frameset Parts
      • Bike Dropouts
      • Bike Seatposts
      • Bike Headsets
      • Forks
      • Seat Post Clamps
      • Bike Bolts
      • Front Mech Clamps
      • Fork Expander
      • Bike Decals
    • Wheels
      • Track Bike Wheels
      • Road Bike Wheels
    • Accessories
      • Muc-Off
      • Bike Bags & Racks
      • Bike Lights
      • Bike Computers & GPS
      • Bike Tools & Maintenance
      • Bike Pumps
      • Bike Mudguards
      • Datatag Security
      • Bike Locks
      • Bike Water Bottles Cages
    • Login

    Login

    Lost your password?

    Register

    Your personal data will be used to support your experience throughout this website, to manage access to your account, and for other purposes described in our privacy policy.