Shimano GRX RD-RX825 Di2 Rear Derailleur - 12-Speed, Long Cage, With Clutch, For 2x, Black
SKU: 95330525190

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

Sale price$178.62 Regular price$198.47
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Description

Shimano GRX RD-RX825 Di2 Rear Derailleur - 12-Speed, Long Cage, With Clutch, For 2x, BlackShimano's 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

Shimano's 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

Product Specifics

  • Largest Cog: 36
  • Rear Der/Shifter Compatibility: Shimano Road Di2
  • Rear Derailleur Mount Type: 10x1 Standard
  • Rear Derailleur Mount Type: Shimano Rear Direct Mount
  • Drivetrain Speeds: 12
  • Chain Wrap Capacity (teeth): 40
  • Cage Length: Long
  • Color: Black



Today's Stock Status

10+ Available to ship in 2-4 Business Days





UPC: 192790310893
EAN: Not available
Manufacturer Part Number: Does Not Apply
RD0162
181524-Q0-L




Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 95330525190

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4.8 โ˜…โ˜…โ˜…โ˜…โ˜…
Based on 249 reviews
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Big guy
Fort Morgan, US
โ˜…โ˜…โ˜…โ˜…โ˜… 5
Throwing balls for dog
Style: Classic + 2pk Ball, Size: 26in
It sure saves my shoulders
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 11, 2026
F
Verified Purchase
Fred Haseman
Houston, US
โ˜…โ˜…โ˜…โ˜…โ˜… 5
A must have for dogs.
Style: Classic + 2pk Ball, Size: 26in
This has provided hours of entertainment for our dog. The Length was perfect and saves a lot wear on your back from not having to bend over as much.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 22, 2026
R
Verified Purchase
Rachel
Boise, US
โ˜…โ˜…โ˜…โ˜…โ˜… 5
Best dog throwing toy
Style: Classic + 2pk Ball, Size: 26in
Probably one of the best purchases I have made! The balls are far superior to any tennis ball. My dog likes to chew or bite down on the balls once she catches them and tennis balls ball apart. As to the actual thrower - the extra length on this one has helped me, I had back surgery and am not able to bend over I can reach the ball without too much difficulty. So to sum it up - best dog throwing toy I have purchase!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
C
Verified Purchase
Carol Glugla
Grantham, US
โ˜…โ˜…โ˜…โ˜…โ˜… 5
great quality
Color: Red
Love the color
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Reviewed in the United States on August 25, 2025
M
Verified Purchase
Mark Gil Dumaplin
Charlottesville, US
โ˜…โ˜…โ˜…โ˜…โ˜… 5
Great ball for tennis drills
Ball retains good pressure for a longer period of time
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Reviewed in the United States on April 21, 2026

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