Shimano GRX RD-RX822 SGS 1×12-speed Rear Derailleur

The SHIMANO GRX RD-RX822 1 x 12-speed rear derailleur with integrated chain stabilizer ensures quiet, safe and precise shifting on mixed terrain. The GS variant is compatible with 10-45 teeth and the SGS variant with 10-51 teeth 12-speed SHIMANO MTB cassettes.

For your riding freedom: the Gravel GRX 1×12-speed Rear Derailleur RD-RX822 from Shimano

Gravel cycling is not meant to be overly complicated. The heart and soul of cycling’s drop bar, dirt road discipline is rooted in simplicity, inclusivity, and adventure. No ride is out of bounds. All are welcome to join. Gear should be functional and reliable but need not break the bank. That’s why whether you’re a grizzled gravel cycling veteran or brand new to the road (or trail) less traveled, you’ll appreciate the latest iteration of Shimano’s groundbreaking—and industry-first-gravel-specific GRX component group. Designed to help you get the most from your next unpaved adventure, RX820 delivers top-tier performance without an over-the-top price.

If your next outing includes pushing for personal PRs or duking it out at the sharp end of a race, you’ll appreciate the gear steps of the RX820 1×12 setup with a 10-45 cassette paired with a 40- or 42-tooth chainring. Just like its 11-speed predecessor, RX820 delivers smooth, reliable shifting but now features a wider gear range and extra cog, making it easier to find the optimal cadence for maintaining your position in the pack.

If your next outing includes pushing for personal PRs or duking it out at the sharp end of a race, you’ll appreciate the gear steps of the RX820 1×12 setup with a 10-45 cassette paired with a 40- or 42-tooth chainring. Just like its 11-speed predecessor, RX820 delivers smooth, reliable shifting but now features a wider gear range and extra cog, making it easier to find the optimal cadence for maintaining your position in the pack.

If all-day—or multi-day—adventures heavy on climbing are your thing, the new RX820 1×12 UNSTOPPABLE option with SHIMANO’s wide-range, 10-51T cassette offering is ideal. Paired with a 40T or 42T chainring, you’ll never run out of gears, even on the steepest jeep road or high mountain ascent. And like the 10-45T, 1×12 option, this group features an integrated SHADOW PLUS chain stabilizer for optimal chain security and an ON/OFF switch, making wheel removal quick and easy if you happen to puncture.

Both 1×12 options utilize Micro Spline, Shimano’s lightweight aluminum freehub design that seamlessly integrates with 10-tooth top gears and features smaller, more widely spaced splines that limit cog damage. The 1×12 gravel-specific crankset is offered in three crankarm lengths, giving you the option to choose the ideal Shimano GRX setup for your needs and riding style.

Features – Shimano GRX RD-RX822 1×12-speed Rear Derailleur

• Silent and uninterrupted rear shifting on rough terrain
• Adjustable chain stabilizer prevents chain slapping and drops
• SHIMANO SHADOW RD+
• Smooth and reliable mixed surface shifting
• Gravel-tuned clutch tension
• Compatible with current road DUAL CONTROL LEVER
• RD-RX822-GS
  • 45T max cog size
  • Works with 12-speed 10-45-teeth cassette
  • Better ground clearance (shorter cage)
• RD-RX822-SGS  
  • 51T max cog size
  • Works with 12-speed 10-51 teeth cassette

Product features

• Use: Gravel, Cyclocross
• Group: GRX
• Model: RD-RX822
• Mount: Direct attachment (Conventional)
• Technology: Shadow RD+
• Gradations: 
  • GS-Type 1×12-speed (10-45 cassette)
  • SGS-Type 1×12-speed (10-51 cassette)
• Compatible chain: 12-speed HG
• Max. teeth large sprocket: 45T (GS) / 51T (SGS)
• Min. teeth large sprocket: 45T (GS) / 51T (SGS)
• Max. teeth small sprocket: 10T
• Min. teeth small sprocket: 10T
• Max. Front Difference: 0T
• Total Capacity: 34T (GS) / 41T (SGS)

Pulley cage (choose variant)

• Type-GS medium
• Type-SGS long

Material

• Aluminum
• Steel
• GFRP

Color

• Series color