Type 4 Alloy eBike Cranks for Fazua, Brose, TQ
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Product details
| Management number | 236213633 | Release Date | 2026/07/09 | List Price | US$38.00 | Model Number | 236213633 | ||
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Praxis EC-4 eCranks – Narrow Fit for Road/Gravel eBikes
The EC-4 crankset is designed for road and gravel eBikes with a narrow Q-factor, compatible with motors that use a steel ISIS spline. These carbon eCranks provide lightweight performance and precise fitment for urban, gravel, and road e-bike setups.
Compatible Motors
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Brose Mag
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Fazua R50
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TQ-HPR50
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Giant E+ System BBSS (Hub Motor)
Not Compatible With
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E-Mountain Bikes
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Specialized Levo, Kenevo, Vomo, or Vado
Specifications
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Set: Left & Right Cranks
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Material: Carbon eCranks
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Main Bolt: Alloy M24 crank bolt with self-extractor
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Installation: 8mm Allen wrench | 50Nm torque
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Weight: 514g (with crank boots)
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Q-Factors:
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178mm on Brose Mag motor
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163mm on Fazua R50 motor
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163mm on TQ-HPR50 motor
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Important Notes
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Narrow fit designed specifically for road/gravel eBikes
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Crank boots included for protection
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Installation instructions available via Praxis service guide
The EC-4 eCranks provide a lightweight, stiff, and precise crank solution for narrow-spindle road and gravel e-bike applications.
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