The Evelo Omni Wheel [$1,000] replaces the front wheel of most bikes to give you an electrified power boost. Front wheel design makes the installation and service incredibly easy. Works with virtually any bike with an easy 30-minute installation. The wireless display lets you adjust the level of assist, while also providing you with speed and distance information. No smartphone required. Every Omni Wheel uses high-grade Panasonic batteries that last longer & provide you with years of use.

Buy: Evelo