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

Easy Shipping

Quick Dispatch:

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

Need Help?
Questions about ethirteen Helix Race espec Direct Mount Chainring for Bosch CX/SX - 34T, 13mm Offset, Black, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for ethirteen Helix Race espec Direct Mount Chainring for Bosch CX/SX - 34T, 13mm Offset, Black in your area.

Get Shipping Estimates

Country Zip/Postal Code

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

First thing I noticed when unboxing was the Strong plastic smell coming out of the shoe I tried them on and Shoe runs small I bought size 13 and it was way to tight I ended up giving them to a co worker that use size 12 and fit him perfectly, he started walking and the rubber sole was leaving black marks all over the tile floor you could see exactly where he was stepping and left a trail he literally used them for less than 1 hr and ended up throwing them away, definitely you get what you pay for. Reminds me of payless shoes, cheap smelly plastic shoes.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on April 6, 2026