  We present surface photometry and stellar kinematics of IC 3167, a dwarf
galaxy hosting a lopsided weak bar and infalling into the Virgo cluster. We
measured the bar radius and strength from broad-band imaging and bar pattern
speed by applying the Tremaine-Weinberg method to stellar-absorption
integral-field spectroscopy. We derived the ratio of the corotation radius to
bar radius (R = 1.7 + 0.5 - 0.3) from stellar kinematics and bar pattern speed.
The probability that the bar is rotating slowly is more than twice as likely as
that the bar is fast. This allows us to infer that the formation of this bar
was triggered by the ongoing interaction rather than to internal processes.
