Folding electric bike brushless gear hub motors V brake ... 6 gears lithium battery powered bike Tech Specification for Folding Electric Bike:Electric System Motor: light-weight high-speed ... Bar: Zoom, Aluminum alloy, ZoomStem: Zoom, Aluminum alloy, adjustable ZoomBrake Lever: Aluminum alloy with power off switch. WUXINGChain: Rust resistant chainChain Wheel: Alloy 44T, aluminum alloy crankMudguard: PP ...