Running in the wolf body is an amazement; it almost seems he's built for it, now, in a way human bodies couldn't be (he can't say how--that's Joly and Combeferre's study-- but he can feel it).

And Enjolras is definitely built for running, now, which means Bahorel can run all out to keep up, something he hasn't done for long before. He grins and lowers his head.