Odyssey released the
Tom Dugan Stem a few days ago. It could be a good option for your street-flat setup. The shorter version comes with
45mm reach and weighs
287 g = 0.63 lbs. The design is classic with 6 bolts. It's made of CNC machines 6061-T6 aluminium and is available in 4 colors. More photos and details are available in the parts section:
Odyseey - Tom Dugan Stem