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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
ethirteen Helix Race espec Direct Mount Chainring for Bosch CX/SX - 34T, 13mm Offset, Black
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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
Pay 4 payments of $49.50 a month.Shop Pay
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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Your ethirteen Helix Race espec Direct Mount Chainring for Bosch CX/SX - 34T, 13mm Offset, Black 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.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.0 ★★★★★
Based on 1134 reviews
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Verified Purchase
Orande Daring
Bozeman, US
★★★★★ 5
Nice Shoes
Size: 10.5, Color: British Tan/Ivry
Nice pair of shoes for my feet. Fits comfortably and nice cushion when walking. I would buy another pair.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
M
Verified Purchase
MR. H.
Dallas, US
★★★★★ 5
Super comfortable!
Size: 9, Color: Navy Blazer/Ivor
Some of the most comfortable shoes that I've ever worn/walked in! Super light on my feet. Nice casual looking and comfortable shoe for a reasonable price. I already brought 3 pair.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 21, 2026
D
Verified Purchase
deloris s.
Belleville, US
★★★★★ 5
Comfortable Shoes
Size: 12, Color: Navy Blazer/Ivor
This is the second time I purchased this style of shoes. They are extremely comfortable. They can be worn on casual and business events.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
L
Verified Purchase
LindyB
Grantham, US
★★★★★ 5
Great dressy sneaker to wear with business casual or jeans
Size: 11, Color: British Tan/Ivry
I got these for my husband to wear with jeans or business casual dress pants. They look sharp and professional and dress up jeans if you're going out. He says they fit comfortably and he can walk on them all day without his feet hurting. They are beautiful genuine leather so they don't get stinky. I got my husband's normal size and they fit to size.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 11, 2026
T
Verified Purchase
timothy scalabrelli
Charlottesville, US
★★★★★ 4
Comfortable
Size: 9, Color: Black/Ivory
Most comfortable and roomy shoes I ever wore. Great for insoles. Looks nice too. The base of the shoe is a bit too thick but it’s fine.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 5, 2025

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