CNC-machined titanium crank arms for eMTBs with a Bosch, TQ or Avinox motor, or the 2025 Specialized Turbo Levo 4. The 157.5mm length gives a little more clearance than a 160mm crank on rocky, technical climbs.

Highlights

  • 5DEV lists them for Bosch, TQ and Avinox motors and the 2025 Specialized Levo
  • CNC-machined titanium
  • ISIS spline
  • 157.5mm crank length
  • Raw titanium finish
  • Made by 5DEV in San Diego, California

Fitting

Fitting eCranks is a separate workshop service and isn't included in the price. The Tune workshop can fit them to your pedal-assist eBike and confirm your motor's crank interface first. 5DEV doesn't publish the hardware or torque for the titanium version, so we fit them to 5DEV's spec with a torque wrench.

5DEV eCranks by motor

5DEV makes a separate eCrank for each motor interface. Its current eCrank range includes:

  • Shimano EP8 (5DEV says its EP8 cranks also work on EP801): R-SPEC EP8 eCranks and Titanium EP8 eCranks
  • Bosch, TQ, Avinox and the 2025 Specialized Turbo Levo 4: R-SPEC Bosch/TQ/Avinox eCranks and Titanium Bosch/TQ/Avinox eCranks
  • Specialized Turbo Levo and Kenevo, first three generations (Brose motor): Specialized Brose eCranks and Titanium Specialized Brose eCranks
  • Specialized Turbo Levo SL and Kenevo SL (SL 1.2 motor): SL eCranks with the SRAM DUB spline
  • Fazua Ride 60: ETOR eCranks

Compatibility & fit

  • 5DEV lists these for Bosch, TQ and Avinox motors and the new 2025 Specialized Turbo Levo 4.
  • 5DEV doesn't say which Bosch or TQ motor models or generations they fit. Check your motor's crank interface with our workshop before ordering.
  • 5DEV doesn't publish a Q-factor or weight for the titanium version.
  • For a Gen 1–3 Levo or Kenevo (Brose motor), 5DEV makes a separate titanium crank.
  • No chainring is listed with the arms.
5DEV gives its titanium cranks a limited lifetime warranty against defects in materials or workmanship (its other products carry a limited five-year warranty from the date of manufacture). If 5DEV confirms a defect, it replaces the product with a comparable model. If you suspect a defect, stop riding and contact us before replacing any affected parts: 5DEV's warranty is void if another maker's component is fitted in place of the 5DEV part. This is in addition to your rights under the Australian Consumer Law, so keep your proof of purchase. For warranty support, return the product to Tune Cycles and we'll manage the claim with 5DEV's Australian distributor.
  • Titanium eCranks for Bosch, TQ, Avinox and the 2025 Specialized Levo 4
  • CNC-machined titanium, made in San Diego
  • ISIS spline
  • 157.5mm crank length
  • Raw titanium finish
Brand5DEV
ModelTitanium Bosch/TQ/Avinox – Gen 4 Levo eCrank
MotorBosch, TQ, Avinox; Specialized Turbo Levo 4 (2025). Motor models and generations not specified by 5DEV
DriveISIS spline
MaterialTitanium, CNC-machined
Crank length157.5mm
FinishRaw titanium
Made inSan Diego, California
5DEV codeTEB-R157-51
SKU DSG-5DTEB-R157-51
Brand 5DEV

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