There are some bigger japanese ryobi saws out there.
I use a japanese blade I like from tashiro's hardware in seattle:

http://www.tashirohardware.com/Tashiros_Hardware_LLC/Home.html

The blade I use is called the Timber blade, with a King handle.
I've gone through quite a few of these now, in my shop they last between 1 and 2 years.
The western saws are often the way to for the deeper, heavier cuts....