ethirteen Helix Race espec Direct Mount Chainring for Bosch CX/SX - 34T, 13mm Offset, Black

ethirteen Helix Race espec Direct Mount Chainring for Bosch CX/SX - 34T, 13mm Offset, Black

Marsoni

M251S

$198.00

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

ethirteen Helix Race espec Direct Mount Chainring for Bosch CX/SX - 34T, 13mm Offset, BlackThe ethirteen Helix Race espec Direct Mount Chainring is the ultimate premium upgrade for high performance Bosch e bike systems. Forged and CNC machined from ultralight, high strength 7075 T6 aluminum, this 34T one piece direct mount chainring features a 13mm offset to achieve perfect chainline alignment on Bosch CX Gen 4, Gen 5, and SX motors. Equipped with an updated M4 narrow wide tooth profile, it ensures bulletproof chain retention and seamless

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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

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Tasha U

Belleville, US

★★★★★ 5

Good quality dog ball for playing fetch

Size: Medium

My dog and family love these chuck it balls to play fetch with our dog. They are durable and fun. They squeak which is added fun for any dog! Regular tennis balls my dog chews apart and they get pretty gross after playing and being left outside. These can be easily washed off and cleaned. These balls last! Would recommend to anyone with a dog and would purchase again.

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Reviewed in the United States on April 17, 2025

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ryan johnson

Phoenix, US

★★★★★ 5

Tough and sturdy

Size: Medium

Have lasted my dog for years now and she is a tough chewer. Worth the money

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Reviewed in the United States on December 12, 2025

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VegasHawkeye

Massapequa, US

★★★★★ 5

Picky dog approved!

Color: S6-muti-color, Color: S6-muti-color

I have wasted so much money on dog balls that they won't even pick up! They finally were obsessed with the Kong rubber green/blue or red/blue ones, but they're $3+. each, and they break from the dogs squishing it. I honestly had zero expectations on these, and they BOTH picked them up on the first throw! That's huge!! Seem to work fine in the ChuckIt. As for the squeaker, at first I was like "Oh nooooo." when they both loudly started! Much to my (and my neighbors') happiness, the squeakers stopped working after a couple minutes. 🤣

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Reviewed in the United States on February 2, 2025

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William Lovelace

Whiting, US

★★★★★ 5

Great dog toys

Color: S6-muti-color

These are long lasting, durable dog toys. My dogs love the squeak sound.

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Reviewed in the United States on May 23, 2026