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- USA
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Ships within 48 hours · Estimated delivery Jul 13 - Jul 18
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Description
Shimano GRX RD-RX820 Rear Derailleur - 12-Speed, Direct Mount, One Spec, Shadow Plus Design, 36t Max LowThe 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
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
Product Specifics
- 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
Today's Stock Status
10+ Available to ship in 2-4 Business Days
UPC: 192790303611
EAN: Not available
Manufacturer Part Number: Does Not Apply
RD0091
181513-Q0-L
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 374 reviews
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Product Reviews
★★★★★ 2
Fun but not for rough play.
Color: Orange
The ball contented our “golden” Jaxson for about 15 minutes. He then thought it was a regular ball and it’s just a little delicate for a big dog. I just wrote it off as a loss. Great idea but should be more durable.
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Reviewed in the United States on April 7, 2026
★★★★★ 5
Long lasting charge!
Color: Orange
My 50 pound goldendoodle absolutely loves this ball. It keeps a charge for a long time. It turns off
When it’s not being used and we play with it every day.!
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Reviewed in the United States on March 24, 2026
★★★★★ 5
Fun toy
Color: Orange
My standard poodle loves this toy. It holds a charge for several hours and is well made
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Reviewed in the United States on April 8, 2026
★★★★★ 5
Indestructible Doodle ball!
Size: Large (Pack of 1), Color: Multi
If your dog chews threw every tennis ball and toy, chuckit rubber fetch balls are the only one! Our dog LOVES it, he digs it out and has to have several so that there are a few outside and a couple inside because he chews them when he's bored inside and chases them outside! You dog will love it. It's a great value, especially if you watch for sales. It's our go to fog toy!!
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Reviewed in the United States on May 2, 2026
★★★★★ 5
Dogs Favorite Ball
Size: Large (Pack of 1), Color: Multi
Great fetch ball! Super durable rubber that holds up way better than a regular tennis ball and has an awesome bounce. Easy for dogs to spot and perfect for endless games of fetch. Doesn’t get soggy or fall apart — definitely a must-have for active dogs!
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Reviewed in the United States on April 29, 2026