Shimano - DEORE Cassette CS-M6100-12 12-speed

Shimano - DEORE Cassette CS-M6100-12 12-speed

Marsoni

M251S

$150.00

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

Shimano - DEORE Cassette CS-M6100-12 12-speedTrickle down technologies at its best HYPERGLIDE+ provides fast and smooth shifting BEAM SPIDER construction cuts weights and boosts stiffness 10 51T wide range 12 speed gear combination Product Description With its BEAM SPIDER construction, the new SHIMANO DEORE M6100 12 speed cassette shaves weight while increasing SHIMANO's MTB gearing range another gear. Using SHIMANO's new MICRO SPLINE freehub body and HYPERGLIDE+ tooth profile, the 10 51T

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Pros: Extremely Durable: Survived an aggressive chewer where tennis balls failed. Dual-Visibility: Features both internal flashing lights and a glow-in-the-dark "chargeable" surface. Perfect Size: Fits comfortably in the mouth of a 40lb medium-sized dog. Same size as a tennis ball. Cons: Battery Life: Unsure how long the internal flashing lights will last (though it has held up well so far).

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Reviewed in the United States on February 8, 2026

Verified Purchase

Andrea S.

Alexandria, US

★★★★★ 5

Great for night time play!

Size: One-Size-for-Most

This ball is great! It is a 2-for-one light up feature so we love the flashing lights and if she drops it in the snow after those lights stop, we can still find it because of the strong glow that gets its charge from the flashing LED lights. Our first one lasted a few years, we lost it on a trip so now back for our second one so we can keep the night time fetch going! She is a golden retriever for size reference. Any bigger of a breed and I would worry it might be too small for her mouth. It’s a bit smaller than a tennis ball. Just don’t make the same mistake I did and let them have it in the house at night, she walked up to my bedside while I was asleep one night and squeezed it to activate it. Those lights are so bright it was a rude awakening!

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Reviewed in the United States on November 11, 2025

Verified Purchase

Katie

Los Angeles, US

★★★★★ 4

Good option for playing at night

Size: One-Size-for-Most

This ball is a good option if your dog likes to fetch at night. It stays lit for about 20 minutes or so, but that is me only leaving it out of the counter, being "charged" by whatever house lights are on. My dog isn't a big chewer, but it seems as though it would hold up well. I like that it is easy to rinse and clean. It seems to be a good value.

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Reviewed in the United States on January 16, 2026