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5Dev R-Spec 155mm E-bike cranks for fewer strikes on technical climbs
The 5Dev R-Spec Bosch E-bike Crank Arms are billet machined from 7075-T651 aerospace aluminum and sized to keep the pedal arc higher off the ground on technical climbs. At the torque loads a Bosch, TQ, or Avinox motor puts through a drivetrain, the material choice is doing real work.
What Our Gearhead® Experts Are Saying:
"The 155mm length is the reason these exist. On a rocky climb where stock cranks clip every other move, these clear the same line without a second thought."
Details
- Short-travel E-MTB crank arm for technical trail riding
- 155mm length keeps the pedal arc clear on rock gardens
- 7075-T651 aluminum handles motor-assisted torque loads
- Fits Bosch, TQ, Avinox, and 2025 Specialized Levo motors
- IS Spline Drive interface for direct motor engagement
- Made in San Diego, California
- Item #FDV000N
- Arm Material
- 7075-T651 aluminum
- Arm Length
- 155mm
- Bolts
- Alloy steel crank bolt 8mm Hex
- Spindle
- Not included
- Q Factor
- 192mm
- Compatible Components
- Bosch/TQ/Avinox drivetrains, Specialized Gen 4 Levo
- Manufacturer Part Number
- EB-R155
- Includes
- Crank arms, hardware
- Activity
- Trail, Enduro