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Praxis eCranks - EC-2 Type 2 - Black

Praxis eCranks - EC-2 Type 2 - Black

One of the biggest names in the business. Our e-cranks for Bosch motors work on their ISIS splined...

Best current price£310.00from Evans Cycles UK

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Evans Cycles UKPraxis Unisex Ec-2 Type 2 Metal Cranksets 155Mm Black
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£310.00
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FrasersPraxis Ec-2 Type 2 Metal Cranksets - Black - 155mm
Free delivery in 1–3 days
£310.00
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Sports Direct UKPraxis Black Ecranks - Ec-2 Type 2 in Size 155mm, Sports Direct
£4.99 delivery
£310.00
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Product Information

Full details

The Praxis eCranks - EC-2 Type 2 are designed for riders with Bosch Gen5 CX, PX, or Avinox motor e-bikes featuring an ISIS spindle. They offer enhanced pedaling efficiency and optimal clearance, making them suitable for both urban trekking and mountain biking. A key caveat is that the Alloy eCranks do not include crank boots.

All features

Model Part Number850054960672
BrandPraxis

Extended Product Information

FAQs

Are these eCranks compatible with all Bosch motors?

No, these eCranks are specifically designed for Bosch Gen5 CX or PX motors (BDU38 with ISIS spindle) and the Avinox motor with an ISIS spindle.

Do the Alloy eCranks come with crank boots?

No, the Alloy eCranks do not include crank boots or protectors. These are available separately.

What is the weight of the eCranks?

The Alloy eCranks weigh approximately 534g (+/-) at 160mm length, and the Carbon eCranks weigh approximately 454g (+/-) at 160mm length (including boots).

What tool is needed for installation?

An 8mm Allen wrench is required for the installation and removal of the cranks.

What is the recommended torque for the main bolt?

The M24 alloy main bolt should be torqued to 50Nm.

What is the difference between Carbon and Alloy Q-factors?

For Bosch motors, the Q-factor is 188mm on Carbon and 179mm on Alloy. For Avinox motors, it is 178mm on Carbon and 170mm on Alloy.

Troubleshooting

Crank arm wobbles or feels loose

Ensure the M24 main bolt is torqued to 50Nm using an 8mm Allen wrench. Check that the ISIS spindle interface is clean and free of debris.

Difficulty installing crank arm

Verify that your motor has an ISIS spindle. Ensure the crank arm is properly aligned with the spindle splines before applying force.

Reduced pedaling efficiency after installation

Double-check that you have the correct eCrank model for your specific Bosch or Avinox motor type, as Q-factors vary. Ensure proper torque is applied to the main bolt.

Pros and Cons

Pros

  • Improved pedaling efficiency due to ergonomic arm shaping.
  • Optimized Q-factor for specific Bosch and Avinox e-bike motors.
  • Durable construction using cold-forged aluminum or carbon fiber.
  • Designed for enhanced ground clearance.
  • Includes necessary installation hardware.

Cons

  • Alloy eCranks do not come with crank boots.
  • Specific compatibility required for Bosch Gen5 CX/PX or Avinox motors with ISIS spindles.
  • Q-factor varies between carbon and alloy versions, and by motor type.

Setup, Compatibility & Care

Compatibility:

  • Motor: Bosch Gen5 CX or PX (BDU38 with ISIS spindle), or Avinox Motor with ISIS spindle.
  • Set: Left & Right set included.

Setup:

  1. Ensure your e-bike is equipped with a compatible Bosch Gen5 CX/PX or Avinox motor with an ISIS spindle.
  2. Use an 8mm Allen wrench to install or remove the cranks.
  3. Torque the M24 alloy main bolt to 50Nm.
  4. If using carbon arms, ensure the included boots and scuff guard are applied.

Care:

  • Clean with a damp cloth. Avoid abrasive cleaners.
  • For Alloy eCranks, consider purchasing crank boots separately to protect against scuffs and impacts.
  • Regularly check the crank bolt for tightness, especially after initial installation or significant use.

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