RX28 Short Upper Link Knuckle (Extra KPI) Set (left/right) [Reflex Racing] RX28A-65

RX28 Short Upper Link Knuckle (Extra KPI) Set (left/right) [Reflex Racing] RX28A-65

Marsoni

M251S

$21.99

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

RX28 Short Upper Link Knuckle (Extra KPI) Set (left/right) [Reflex Racing] RX28A-65This knuckle offsets the top ball thread location by 0. 25mm inwards. This creates a shorter upper arm and increase camber gain on your front end. A shorter link makes the reaction of the car slightly faster for conditions where you are looking for higher response like short tracks with tight corners. This Setting effectively increases KPI. This knuckle set is easily identified by having 2 dots cut into the steering arm.

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These are an absolute Must!! We have an ESS who is nearly 2yo and destroys Every toy he has. For some reason, he doesn't try to annihilate these glow balls. If he chomps on them, it's just for a moment while he is bringing it back to you. Has just a little weight to them so it goes far enough when thrown and a nice bounce when we have to play in the house, due to weather. Wish the bright 'glow' held a little longer but stays dim for quite some time and overall, just Awesome! Also purchased the 'chuck it' brand and sent them back because these were so much better. Will be buying more, if ever needed, but haven't had to because they are So Durable.

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Reviewed in the United States on April 12, 2026

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Lance M. Shaw

Lake Worth, US

★★★★★ 5

Awesome quality glow balls

Color: I) 8-Pack (2.5" Balls)

I have bought every glow ball on amazon many times over for my german shepherds. My longest lasting balls have been the chuck-it, they seem to glow longer and not get destroyed but are expensive. These glow balls are our new favorite and not only because of the low price. They hold a good glow longer are heavy duty and fit the chuck-it thrower perfectly. I am stocking up on these. Shipping was also next day so it's 100% buy on these.

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Reviewed in the United States on February 8, 2026

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Charlow

Lexington, US

★★★★★ 3

Glow in the Dark Balls

Color: 2-Pack (3" Balls)

These balls are ok, not great. The reason they didn’t receive 5 stars is because they are hard/stiff, harder to throw & heavier than the the “Chuck It” glow in the dark balls. They did not hold up to heavy chewers as well as the aforementioned balls.

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Reviewed in the United States on May 15, 2026

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Leslie Guffey

Natrona Heights, US

★★★★★ 5

Light up and glow in the dark ball

Size: One-Size-for-Most

Definitely my girls favorite ball 😀. It disappears and I have to buy another one or she goes nuts. Glows in the dark, brighter with more sun. The bounce light up don’t last a real long time, too quick to quit for her but still loves it.

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Reviewed in the United States on May 13, 2026

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AirNelson

New York, US

★★★★★ 5

Durable & Bright - Great for Heavy Chewers

Size: One-Size-for-Most

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