  We present HST observations of previously undetected optical jets in the
low-luminosity radio galaxies B2 0755+37 and B2 1553+24. We show that there is
accurate spatial coincidence between optical and radio emission, implying that
the former is likely to be synchrotron radiation. The physical properties of
the jets are similar to those known previously: their radio-optical spectral
indices are ~0.7 and in B2 0755+37, the spectrum steepens between optical and
X-ray wavelengths. Our results support the hypothesis that optical emission is
detectable from jets orientated within ~20 degrees of the line of sight for the
B2 sample.
