Detailed Specifications: Brand: SRAM Model: X1 E-MTB Crank Arm Set Model ID: FC-X1-PA-A1 Application: E-MTB (Bosch, Brose, Yamaha mid-motor systems) Crank Arm Length: 165mm Material: Aluminum Bottom Bracket Spindle Interface: ISIS Chainring: Not included (crank arms only) Chainline: n/a Bolt Circle Diameter (BCD): n/a Speeds: n/a Color: Black Weight: 494g Additional Features: Purpose-built for the high torque and demands of E-MTB riding. Shorter 165mm crank arms provide improved ground clearance and control on technical terrain. Proven SRAM design adapted for mid-motor e-bike systems. Lightweight yet durable aluminum construction ensures long-term performance. Compatible with Bosch, Brose, and Yamaha ISIS-drive bottom bracket interfaces. Important Usage Notes: Designed for E-MTBs with ISIS spindle interface only — not compatible with other bottom bracket standards. Chainring is not included; verify compatibility with your drivetrain before installation. Professional installation recommended for proper fit and torque. Riding Impressions:The SRAM X1 E-MTB crank arms deliver a perfect balance of stiffness, durability, and weight savings. Their shorter 165mm length helps reduce pedal strikes while maintaining excellent power transfer, making them a top choice for riders pushing their e-bikes on aggressive trails and technical terrain. Disclosure:This listing includes crank arms only. Chainring, bottom bracket, and additional accessories are not included. This is a genuine SRAM product, covered by the manufacturer’s warranty for the original owner. Please retain your purchase invoice for warranty claims.
