e*thirteen Helix e*spec Crank Arm Set - 170mm, BOSCH Gen4-Brose S Mag-TQ HPR50, with Self Extractor, Black
SKU: 76933431058

e*thirteen Helix e*spec Crank Arm Set - 170mm, BOSCH Gen4-Brose S Mag-TQ HPR50, with Self Extractor, Black

Sale price$78.80 Regular price$87.55
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

e*thirteen Helix e*spec Crank Arm Set - 170mm, BOSCH Gen4-Brose S Mag-TQ HPR50, with Self Extractor, BlackHelix Core cranks provide an e bike drivetrain upgrade with high end features and aesthetics at an exceptional value. Forged for e Enduro strength, with alloy self extractor bolts, pedal washers, and molded impact boots. 24mm ISIS interface models are compatible with Bosch Gen 4, Brose S Mag, TQ, Fazua, Yamaha, Maxon, and Specialized Brose motor systems. Available in short lengths from 155mm for improved pedal clearance. Forged, CNC Machined AL 6066

Helix Core cranks provide an e-bike drivetrain upgrade with high-end features and aesthetics at an exceptional value. Forged for e-Enduro strength, with alloy self-extractor bolts, pedal washers, and molded impact boots. 24mm ISIS interface models are compatible with Bosch Gen 4, Brose S Mag, TQ, Fazua, Yamaha, Maxon, and Specialized Brose motor systems. Available in short lengths from 155mm for improved pedal clearance.
  • Forged, CNC Machined AL-6066-T6 arms
  • Compatible with 24mm ISIS Spindles
  • Chainring sold separately

Product Specifics

  • Color: Black
  • Crank Length (mm): 170
  • Pedal Spindle: 9/16"
  • Designed for ebike: Yes
  • Defined Color: Black



Today's Stock Status

Currently not available




UPC: Not available
EAN: 4711280341399
Manufacturer Part Number: CS5ESA-103
CK0896
183068-Q0-L




Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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
SKU: 76933431058

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Mike M.
San Leandro, US
★★★★★ 5
Perfect fit Honda accord
Perfect fit. +2 mpg on a Honda hybrid. Excellent
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Reviewed in the United States on April 1, 2026
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Ayra G.
Lake Worth, US
★★★★★ 5
Premium product!
Must have, save hundreds over time. Rinse and put back on. Get the cleaners and spray to keep it new.
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Reviewed in the United States on May 11, 2026
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Jim C
Fort Morgan, US
★★★★★ 5
It's K&N. Top quality filters
Fit perfectly. I've used K&N filters before and they worked great.
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Reviewed in the United States on August 22, 2025
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John E. Souder
Charlottesville, US
★★★★★ 5
Fits perfectly
Fits perfectly and easy installation. Thanks !!!
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Reviewed in the United States on October 6, 2025
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AmazonCustomer
Chelsea, US
★★★★★ 5
2024 Honda CR-V
Worked for 2024 Honda CR-V Sport (Hybrid). Sizing was appropriate and the new filter slid in without any issue. Consider the filter to be of good quality. Would recommend.
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Reviewed in the United States on December 20, 2025

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