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 Aug 6 - Aug 11

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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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4.3 ★★★★★
Based on 17 reviews
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Verified Purchase
judith stevens
Lake Worth, US
★★★★★ 1
Some of the components are plastic
This is not a heavy duty application what so ever . One of the flanges broke . We do not recommend this product
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 5, 2024
K
Verified Purchase
Kimberly matthews
Chelsea, US
★★★★★ 2
Quality control lacking
One tee conector was missing. Nothing avaliable locally that fits.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 13, 2025
A
Verified Purchase
Alexandra
Bozeman, US
★★★★★ 1
It doesn’t stay in
The pipe keeps coming out. Not worth the money. Not sturdy to hold a top table.
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Reviewed in the United States on February 20, 2024
E
Verified Purchase
Eric
Waukegan, US
★★★★★ 2
Good finish, poor hardware.
Set screws are poor quality and are sometimes powdercoated on the exposed threads. Leads to striped hex sockets and inability to tighten properly. Durable finish as evidenced by no visible damage after throwing parts across the shop in frustration. Ended up running self tapping screws thru parts to complete assembly.
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Reviewed in the United States on February 26, 2024
C
Verified Purchase
Carl L. Bradley
Chelsea, US
★★★★★ 1
Kinda flimsy…
Thought the assembly was metal, it’s some kind of PVC.
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Reviewed in the United States on September 22, 2025

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