★★★★★ 5
What?
The puppy loved it
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Reviewed in the United States on January 21, 2020
ethirteen Helix Race espec Direct Mount Chainring for Bosch CX/SX - 34T, 15mm Offset, Sterling Silve
Marsoni
M251S
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, 15mm Offset, Sterling SilveThe 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 wider 15mm offset to achieve proper chainline alignment on specialized Bosch CX Gen 4, Gen 5, and SX motor configurations. Equipped with an updated M4 narrow wide tooth profile and finished in a
Quick Dispatch:
Your ethirteen Helix Race espec Direct Mount Chainring for Bosch CX/SX - 34T, 15mm Offset, Sterling Silve orders ship within 1-2 business days.
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- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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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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4.6 ★★★★★
Based on 1434 reviews
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Product Reviews
★★★★★ 4
Pretty durable, ears not so much
Pretty good but chewed through the ears in just a few minutes. The body seems more durable. We have a goose/duck from this brand that has held up extremely well.
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Reviewed in the United States on January 7, 2026
★★★★★ 1
Another one bites the dust!!
Another one bites the dust. It looked like it was gonna be strong enough for our new puppy. We adopted a border collie who is about six months old. This was supposed to be durable. Lasted about a week. Might be good for older dogs. I wouldn’t recommend.
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Reviewed in the United States on October 14, 2025
★★★★★ 2
Not that sturdy
Fell apart immediately
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Reviewed in the United States on January 28, 2024
★★★★★ 2
Too expensive
This dog toy did not hold up due to poor manufacturing in my opinion.
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Reviewed in the United States on November 17, 2024
