Hey, it's a great rear rack from Topeak! The Uni (universal) Explorer Disc rack fits first and second generation Vvolt ebikes (except Slice Lite). The adjustable legs ensure a great fit, and installation is a breeze! 

This tough tubular rack is perfect for touring, commuting, or running errands in town. The MTX QuickTrack® plate is compatible with any Topeak MTX TrunkBag, MTX rear basket, and most other rack packs and panniers on the market (sold separately).