14 series (36mm) Neus
 

News from Neu:
http://www.neumotors.com/2008/Root/S...00_series.html
Essentially a 1515 squeezed into a slightly smaller can.

Nice...w/a smaller can it should help a tad w/gearing options for those using mech. brakes

It's probably to be closer to the "standard" 36mm can diameter. 1.43" is 36.322mm, but they might have rounded so it may actually be an even 36mm. That would allow more motor mounts and aftermarket heatsinks (like they need it) to be used.

A 15xx motor is almost 40mm in diameter

You're a bit late on this one, already got a thread
http://www.rc-monster.com/forum/showthread.php?t=17935