Praxis eCranks for Bosch & Avinox Motors

Praxis eCranks are designed for Bosch Performance Line ISIS-splined motors as well as Avinox ISIS motors, delivering efficient pedaling and optimal clearance for any e-bike application—urban, trekking, or mountain. The arms are precisely shaped for fitment on the Bosch Gen5 CX or PX and Avinox motors, ensuring smooth operation and durability.

Compatibility

• Bosch "Gen5" CX or PX BDU38 with ISIS spindle

• Avinox motor with ISIS spindle

Specifications

• Set: Left & Right Cranks

• Material: Cold-forged aluminium alloy; optional carbon arms with boots/adhesive scuff guard

• Installation: 8mm Allen wrench | 50Nm torque

• Main Bolt: M24 alloy self-extracting crank bolt

• Weight:

  • Alloy: 534g ± (160mm)

  • Carbon: 454g ± (160mm with boots)

• Q-Factors:

  • Bosch: 188mm (Carbon) / 179mm (Alloy)

  • Avinox: 178mm (Carbon) / 170mm (Alloy)

Important Notes

• Alloy eCranks do not include crank boots or protectors

• Designed for smooth, efficient pedaling and maximum clearance on Bosch and Avinox ISIS-splined e-bike motors

Praxis eCranks provide strength, precision, and performance for any Bosch or Avinox e-bike setup, making them ideal for riders seeking a reliable and efficient drivetrain solution.

Q-Factors: Bosch
188mm on Carbon
179mm on Alloy

Q-Factors: Avinox
178mm on Carbon
170mm on Alloy