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- USA
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Ships within 48 hours · Estimated delivery Aug 22 - Aug 27
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Description
EX1The EX1 derailleur capitalizes on the robust build and precise shifting attributes of the X HORIZON design, to create the worlds first derailleur specifically made for E MTBs Engineered to handle high torque, low cadence shifting across the 11 48 tooth E BLOCK cassette Gives E MTB riders clean, confident shifts, so they can spend more time enjoying the ride SRAM Model ID: RD EX1 A1 Attributes Maximum Cog 48T Minimum Cog 11T Primary Color Black Cage
- The EX1 derailleur capitalizes on the robust build and precise shifting attributes of the X-HORIZON design, to create the world’s first derailleur specifically made for E-MTBs
- Engineered to handle high-torque, low-cadence shifting across the 11-48 tooth E-BLOCK cassette
- Gives E-MTB riders clean, confident shifts, so they can spend more time enjoying the ride
- SRAM Model ID: RD-EX1-A1
Attributes
| Maximum Cog | 48T |
| Minimum Cog | 11T |
| Primary Color | Black |
| Cage | Long |
| RD Capacity | 37T |
| Speed | 8 |
| Mount | Standard |
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
4.9 ★★★★★
Based on 22 reviews
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Product Reviews
★★★★★ 5
Balls
Size: Medium
My dog loves chasing these balls. He seems to love the squeak! They fit the chuck it stick perfectly, and are great replacements for the originals that came with the stick.
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Reviewed in the United States on February 7, 2026
★★★★★ 5
Nice set of balls
Size: Medium
The squeaker quickly became my dog’s favorite ball and has replaced the fuzzy tennis balls. My dog is a nonstop fetcher and these chuck it balls are durable and fun.
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Reviewed in the United States on January 9, 2026
★★★★★ 5
Perfect ball
Size: Medium
Our dog loves these!
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Reviewed in the United States on May 26, 2026
★★★★★ 4
Soild
Size: Medium
The orange and blue ball is perfect. Once start taken because the because the blue noisy one was a little to easy for my dog to start ripping pieces off. Will say most toys do not survive his chewing.
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Reviewed in the United States on January 24, 2026
★★★★★ 5
Aggressive chewer who loves fetch approved!!
Size: Medium, Size: Medium
I highly recommend the Chuck-It brand in general, especially for dogs with an aggressive bite. These balls are awesome and are the most durable balls I’ve bought for my 50 lbs lab mix. He has not been able to break one of them yet and we’ve had a few of the squeaky balls for months. They are a bit pricey but worth it.
The one in the pic has been used for months, lives outside and you can see it’s still in great shape.
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Reviewed in the United States on June 22, 2025