Echo Alloy Cassette Rear Sprocket

Marsoni

M251S

$592.00

Get it in 3 business days with 1 day shipping. Friday, May 29

Echo Alloy Cassette Rear SprocketArise Echo Cogs are CNC machined from 7075 T6 Aluminium. The alloy cog is perfect for riders chasing that super lightweight dream. Designed to fit Shimano HyperGlide cassette hubs and have a 5mm wide built in spacer, giving a more solid interface with the cassette body. 16T and above feature cut outs to save additional weight. Colour: Hard Anodized Silver Material: 7075 T6 alloy Size: 14t, 15t, 16t, 17t or 18t Measurements: for 1 2" x 3 32" chains,

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
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My dog is 7 months old, about 35lbs as of this review. These balls barely lasted a month as they all kept breaking if thrown against anything or just bounced repetitively. The color is good so that you can see it better in the dark, but I would not say these balls are worth the price. Update 2023-12: After posting my review the seller contacted me and provided me with two free sets of balls as an apology for the bad quality of the original set. So far these are holding much better with my dog and she loves to play fetch with them.

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Reviewed in the United States on November 25, 2023

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Karen

Draper, US

★★★★★ 4

Good minus one problem.

Color: Squeaky-Multi Colors, Size: 2.0"(Small)-4 Pack

1 of the 4 balls didn’t squeak. Other than that, good product.

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Reviewed in the United States on August 5, 2025

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Judyxt

Los Angeles, US

★★★★★ 5

I use it to help me with the joystick

Color: Squeaky-Multi Colors, Size: 2.0"(Small)-4 Pack

These worked great for the joystick on my Jazzy Air 2 joystick have arthritis but with just one I can use it now.

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Reviewed in the United States on May 31, 2026

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Lisa M.

Whiting, US

★★★★★ 5

Wonderful product

Color: Regular-Orange, Size: 2.5"(Medium)-12 Pack

Love these balls! They are very sturdy for dog chewers and retrieval.

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Reviewed in the United States on March 24, 2026

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Priara

Natrona Heights, US

★★★★★ 3

Not as small as described

Color: Squeaky-Multi Colors, Size: 2.0"(Small)-4 Pack

Was disappointed with this product , as the reason for me ordering this product was so that I could gift to my little 6pound yorkie in an Easter basket , considering that my pet preference is SMALL balls and these were pretty much an average size ball. So she didn’t get much enjoyment out of them. Price was very fair , but money wasted overall because she doesn’t play with them.

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Reviewed in the United States on April 30, 2026