SRAM Eagle 90 E-Bike Crank Arms - BDU38 - Bosch

Robust. Refined. Ready for Anything.

The SRAM Eagle 90 Transmission E-MTB crankset is designed to meet the demands of modern electric mountain biking. Purpose-built for Bosch BDU38 motor systems, these crank arms are forged from high-strength aluminum, delivering durability and reliability without unnecessary weight.

Featuring SRAM’s distinctive GapCap interface, the crank offers a sleek, integrated appearance when paired with select Bosch E-MTB systems. And with a removable GapCap, you can adapt the setup for use with other ISIS spindle-based motor platforms, adding flexibility to its robust design.

Key Features

• Forged Aluminum Arms – Lightweight and strong for demanding E-MTB riding.

• Designed for Bosch BDU38 Motors – Perfect match for Bosch's high-performance drive units.

• GapCap Interface – Creates a clean, seamless look with Bosch systems.

• Removable GapCap – Allows compatibility with other ISIS spindle E-MTB motors.

• Built for E-MTB – Withstand the added torque and stress of electric assist.

Confident performance meets clean design—the SRAM Eagle 90 E-MTB crank is your Bosch-powered trail companion.