EVELO Aries Electric Bike with Shimano Alivio 8-Speed Drivetrain & 250W Mid-Drive Motor High-performing, powerful commuter bicycle High-performance Lithium-Polymer battery pack provides up to 40 miles of riding on a single charge (up to 20 miles in electric-only mode) Shimano Alivio 8-Speed Gear System let's you conquer any terrain Includes patented 250W mid-drive motor, integrated front & rear lighting, and LCD speedometer Recharge battery to full capacity in 4-6 hours