★★★★★ 5
Great product!
Perfect fit and looks great!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2025
ethirteen Helix Race espec Direct Mount Chainring for Bosch CX/SX - 32T, 13mm Offset, Black
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 - 32T, 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 32T 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
Quick Dispatch:
Your ethirteen Helix Race espec Direct Mount Chainring for Bosch CX/SX - 32T, 13mm Offset, Black orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
Order Tracking:
You'll receive a tracking link by email once your ethirteen Helix Race espec Direct Mount Chainring for Bosch CX/SX - 32T, 13mm Offset, Black ships.
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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
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4.3 ★★★★★
Based on 2249 reviews
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Product Reviews
★★★★★ 5
Great upgrade cabon fiber look
Perfectly fit and was an upgrade to the car. It fits the bmw e46 model to a tee. Will buy again if needed.
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Reviewed in the United States on April 21, 2026
★★★★★ 5
Bien
Buen producto
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Reviewed in the United States on April 2, 2026
★★★★★ 4
Looks perfect
Was a little hassle to install, not going to lie, the cupholder didn't want to stay in place. After some brain-power, came out great 👍.
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Reviewed in the United States on January 6, 2023
★★★★★ 5
fits great, looks great
Replaced the old original one with this one and it looks great
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Reviewed in the United States on December 27, 2023
