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

Marsoni M251S
Sale price$198.00
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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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  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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4.3 ★★★★★
Based on 1845 reviews
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Kat
Carnegie, US
★★★★★ 5
Already got complements!
Size: 2T, Color: Dark Indigo Wash, Size: 2T, Color: Dark Indigo Wash
Great fit, it’s a little stretchy so perfect for my toddler!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 6, 2026
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Verified Purchase
Deise Mendonca
Waukegan, US
★★★★★ 5
Soft material
Size: X-Small, Color: Dark Indigo Wash
Looks beautiful and is very soft
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 5, 2026
J
Verified Purchase
Jazz
Louisville, US
★★★★★ 5
Soft and lightweight
Size: XX-Large, Color: Light Denim Blue, Size: XX-Large, Color: Light Denim Blue
Great lightweight jacket more like a shacket really. Fits my son nice as well. So soft.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 21, 2026
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Jia
Lake Worth, US
★★★★★ 4
Thin
Size: XX-Large, Color: Medium Indigo Wash
it's good but very thin.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 26, 2025
K
Verified Purchase
kmac
West Palm Beach, US
★★★★★ 5
Nice jacket!
Size: Large, Color: Dark Indigo Wash
I got this coat for my nephew because he has been begging for a similar one and he loves it! The sizing is dead on and the fabric is a little stuff so size up if you think you'll need to. Great quality, well made!
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Reviewed in the United States on May 11, 2026

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