non pretentious reasons for riding fixed, might help next time you need to explain to someone:
low maintenance, cheap, most of london is flat and gears are pointless, frequent acceleration at lights wears a thin 9/10 speed chain, pedal brake gives immediate control in unpredictable traffic, constant pedalling improves technique (you turn smoother circles, a more even output of power is more efficient), less need for rim braking saves wear on your rims, and on brake pads, fewer parts on the bike make it lighter.
non pretentious reasons for riding fixed, might help next time you need to explain to someone:
low maintenance, cheap, most of london is flat and gears are pointless, frequent acceleration at lights wears a thin 9/10 speed chain, pedal brake gives immediate control in unpredictable traffic, constant pedalling improves technique (you turn smoother circles, a more even output of power is more efficient), less need for rim braking saves wear on your rims, and on brake pads, fewer parts on the bike make it lighter.