  We present isovector nucleon observables: the axial, tensor, and scalar
charges and the Dirac radius. Using the BMW clover-improved Wilson action and
pion masses as low as 149 MeV, we achieve good control over chiral
extrapolation to the physical point. Our analysis is done using three different
source-sink separations in order to identify excited-state effects, and we make
use of the summation method to reduce their size.
