Shimano GRX RX825 Di2 12-Speed Rear Derailleur in Grey

Shimano GRX RX825 Di2 12-Speed Rear Derailleur

Middle cage / Grey
$445.00
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Shimano GRX RX825 Di2 12-Speed Rear Derailleur in Grey
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Shimano / Bike Derailleurs

Shimano GRX RX825 Di2 12-Speed Rear Derailleur

Shimano's GRX Di2 rear derailleur offers the perfect mix of durability and weight savings for all your gravel needs.

$445.00
CageMiddle cage
ColorGrey

Ship to store · free pickup, usually ready in 4–7 business days

Store availability

Shimano GRX RX825 Di2 12-Speed Rear Derailleur

Middle cage / Grey

Available to ship to any of our stores. Order online and pick it up free, usually in 4–7 business days.

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Shimano GRX RX825 Di2 12-Speed Rear Derailleur

Middle cage / Grey

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Free pickup at any of our four stores. Questions? We're happy to help.

About this product

The details.

United in gravel

Shimano's GRX Di2 12-speed rear derailleur features a built-in wireless connectivity unit for fast and reliable shifting in mixed-terrain, while the integrated charging port makes recharging a breeze.

Product details

  • Compact design with integrated wireless unit, charging port, and switch
  • Fast and reliable shifting on rough terrain
  • Adjustable chain stabilizer prevents chain slap
  • Gravel-tuned clutch tension
  • Switch stabilizer ON/OFF to match terrain, use ON for gravel, OFF for smooth roads
  • LED status indicator
  • Top sprocket: Max. 11T/Min. 11T, Low sprocket: Max. 36T/Min. 34T
  • Total capacity: 40T

What makes it special

The little details. The big difference.

The details

Good to know-

Specs4
Manufacturer part #
IRDRX825A
Cage
Middle cage
Speed
12
Largest cog
34t
Good to know1
  • 30-Day Unconditional Guarantee If for any reason you're not satisfied with a Rapha product bought from Trek, return the item, along with the original sales receipt to the original place of purchase within 30 days for an exchange or refund. Think of it as a 30-day test ride.

Complete your setup

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