GRX RD-RX825 Di2 Rear Derailleur
GRX RD-RX825 Di2 Rear Derailleur
GRX RD-RX825 Di2 Rear Derailleur
GRX RD-RX825 Di2 Rear Derailleur
GRX RD-RX825 Di2 Rear Derailleur
GRX RD-RX825 Di2 Rear Derailleur
GRX RD-RX825 Di2 Rear Derailleur
GRX RD-RX825 Di2 Rear Derailleur
Shimano

GRX RD-RX825 Di2 Rear Derailleur

$594.99
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UPC / SKU
UPC
192790310893
SKU
IRDRX825A
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GRX RD-RX825 Di2 Rear Derailleur $594.99
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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

Bicycle shipping is a flat $100.

Standard ground shipping within Canada is free on eligible orders over $150. Bicycles are subject to the bicycle shipping rate.

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  • Request deadline: Within 7 days of receiving your bike or 14 days of receiving other items.
  • Condition: Brand-new, never used, and in original packaging. Bikes must be never ridden.
  • Final sale: Sale and special-order items cannot be returned or exchanged. A discount code on a regular-price item does not make it final sale.
  • Return deadline: Approved items must reach us within 7 days of approval.
  • Processing fee: 5% of the amount paid for returned items, excluding taxes and shipping, is deducted from your refund—even for returns brought to a store.
  • Shipping: You pay return shipping or may bring approved returns to either store. Original delivery charges are non-refundable.
  • Start a return: Submit our Online Orders Support form and wait for approval before returning anything.

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