The Reserve 27 is designed for most people's riding styles—a bit of uphill, a bit of downhill, and plenty of miles in between. The narrower width works well with a wide range of tires, from 2.0 to 2.5, depending on your preferred tread pattern. It's slightly lighter than the Reserve 30, and the beads are a bit thinner. It's durable, but designed for less aggressive riding than the 30 or the DH.
This wheel is not compatible with e-bikes.