The traffic friendly urban riser bar is increasingly popular and here is Nitto's take, the B260AA. Whilst the overall parameters: width under half a metre, 12 degree sweep and modest rise are all par for the course in this category of bar you will get some Nitto fairy dust and shiny finish.
Nitto add safety warnings on the packaging for this bar advises against using this lightweight bar for mountain biking or "acrobatic riding". This bar is way too nice for the polo court anyway.
Clamp Diameter 25.4mm
Inner Bar Diameter 19.5mm
Outer Bar Diameter 23.8mm
Back Sweep 12°