5DEV R-SPEC Bosch/TQ/Avinox + Gen 4 Levo

5DEV R-SPEC Bosch / TQ / Avinox + Gen 4 Levo eCranks are engineered for the latest generation of high-power eMTB platforms, delivering strength, clearance, and confidence where technical terrain demands the most. Machined from aerospace-grade aluminum in San Diego, California, these cranks are designed to thrive under the sustained torque and impact loads of modern motor-assisted riding. The R-SPEC design focuses on reducing crank strikes when navigating rocky climbs and tight technical sections. Shorter crank lengths improve clearance and control without sacrificing pedaling efficiency, making these cranks especially well-suited for aggressive trail and enduro-style eMTB riding. Compatible with Bosch, TQ, Avinox motor systems, and the latest Gen 4 Specialized Levo, these cranks use an IS spline drive interface for secure engagement and reliable power transfer. Installation is straightforward for experienced mechanics, and the robust self-extracting hardware makes service simple over the long term. 5DEV R-SPEC Bosch / TQ / Avinox + Gen 4 Levo eCrank Specs at a Glance Motor Compatibility: Bosch, TQ, Avinox, Gen 4 Specialized Levo Drive Interface: IS spline drive Available Lengths: 155 mm, 160 mm Q-Factor: 192 mm Material: CNC-machined 7075-T651 aerospace aluminum billet Weight: 490 g (155 mm) Crank Bolt: Alloy steel, 8 mm hex, 40 Nm Self-Extractor: Billet aluminum, 16 mm hex, 2 Nm Manufacturing: Machined in San Diego, California, USA Patent Status: Patent pending Design Benefits Reduced Crank Strikes: Shorter lengths improve clearance in technical terrain. R-SPEC Strength: Built to handle high-torque loads from modern eMTB motors. Precision Machining: Billet construction ensures stiffness and long-term durability. Service-Friendly Hardware: Self-extracting system simplifies installation and removal. Final Take The 5DEV R-SPEC Bosch / TQ / Avinox + Gen 4 Levo eCranks are a purpose-built solution for riders pushing the limits of modern eMTB platforms. With reduced strike risk, billet strength,