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

MPN: IRDRX825A · UPC: 192790310893

$445.00

In Stock — Ready to Ship

💳 Pay as low as $445/mo with Affirm. Prequalify now

🏪 Free pickup: 26 Essex St (Rear), Andover MA · 978-270-4895

🔒 Secure Checkout

💳 Visa · MC · Amex · Apple Pay

📦 Free Ship $99+

🚚 Local Delivery $20

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

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