Scope classifies the R4D specifically as an all-around road wheel. While to us the edge of what is road & trail can be a bit blurry, Scope is bit more clear. They recently introduced a shallow section and wider O2 carbon wheelsest for gravel and cross-country, ie. for true light off-road riding. With that said, we like the deeper 45mm aerodynamic profile of the R4D for mixed riding, and appreciate some aero gains for long days out mixing asphalt with a bit of dirt road. And for cyclocross, you need that deep section to cut through deep mud & sand, right? Well, in any case, you look cool doing it.
The R4D wheels use Scope’s own full carbon rim with a tubeless profile they developed together with Schwalbe’s tubeless road tire team. That’s immediately apparent when mounting up a set of the excellent Pro One tires. The rim well is deep enough to make it easy to get the tires on with little fuss. And then they snap securely into place with a blast of air. (We installed them with Schwalbe’s Tire Booster, their version of the at home pressure tank.)