Rear Derailleurs Shimano Shimano GRX RD-RX820 Rear Derailleur - 12-Speed Direct Mount One Spec Shadow Plus Design 36t Max Low Black

Shimano GRX RD-RX820 Rear Derailleur - 12-Speed Direct Mount One Spec Shadow Plus Design 36t Max Low

$145.00
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Rear Derailleurs Shimano Shimano GRX RD-RX820 Rear Derailleur - 12-Speed Direct Mount One Spec Shadow Plus Design 36t Max Low Black
Shimano GRX RD-RX820 Rear Derailleur - 12-Speed Direct Mount One Spec Shadow Plus Design 36t Max Low $145.00
  • Fast US-based shipping, no tariffs
  • Secure checkout
Shimano GRX RD-RX820 Rear Derailleur - 12-Speed Direct Mount One Spec Shadow Plus Design 36t Max Low. The Shimano RD-RX820 rear derailleur is compatible with 11-34t and 11-36t 12-speed cassettes providing a wide gear range so you can spin a comfortable cadence no matter the terrain type. This rear derailleur also features an integrated chain stabilizer that delivers quieter shifting and more secure chain management during rough rides. The chain tensioner has an ON/OFF switch for outings on smooth surfaces.
  • Silent and secure rear shifting on rough terrain
  • Adjustable chain stabilizer prevents chain slap and drops
  • Shimano Shadow RD+ offers less distraction a quiet drive train reduced chain slap and a solution for chain drop
  • ON/OFF stabilizer switch matches terrain for smooth and reliable shifting on mixed surfaces
  • Compatible with HG 12-Speed Chains
    • TECH SPECS
    Largest Cog 36
    Rear Der/Shifter Compatibility Shimano Road
    Rear Derailleur Mount Type Shimano Rear Direct Mount
    Rear Derailleur Mount Type 10x1 Standard
    Drivetrain Speeds 12
    Weight 270
    Chain Wrap Capacity (teeth) 42

    Free Economy shipping on orders $75+ within the continental US.
    Free pick up at Dragonspine Cycling, Chicago.

    Standard items

    • Economy: $12.99, free on $75+ · 5–8 business days
    • Expedited: $15.14, $2.15 on $75+ · 2–5 business days
    • UPS 2nd Day Air: $34.99 · up to 3 lb
    • FedEx Standard Overnight: $64 · up to 3 lb

    Oversized items
    Wheels and wheelsets, forks, frames and framesets, racks, repair stands, trainers, trailers and bike travel cases.

    • Economy: $35, free on $750+ · 5–8 business days
    • Expedited: $45, $10 on $750+ · 2–5 business days

    By quote
    Standard items over 3 lb by 2nd Day or overnight, oversized items by 2nd Day or overnight, and international shipping. Contact us or call +1 (872) 946-7006.

    When orders ship
    Items in stock at our Chicago location ordered by 3 PM CT on a business day ship the same day. Items from our warehouse ship within 4–5 business days. Warehouse items are ready for pickup in 4–5 business days.

    Free-shipping thresholds are based on the order total after discounts. Full details in our Shipping policy.

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