The Boom Vader 125 crowd has come on quite strong, lately, and they seem to come shipped with small issues that need TLC which most members seem to have worked through. However, there are others from SSR, and Ice Bear for more $. The SSR actually beat out the Grom, the Z125 and the K-Pipe in a four way comparison due to price/fun ratio and other criteria.
http://www.ssrmotorsports.com/store/street/razkull.php
And the Ice Bears (there are two--one comes customized for your convenience!

)
http://www.icebearatv.com/Motorcycle
Boom does have another bike which is not shown on their site but a couple retailers carry it--it looks like the SSR Razkull and Ice Bear Little Monster
https://www.venommotorsportscanada.c...torcycle-125cc
Here it is called the Lil Duc (this place also carries the Little Monster and the Fuerza
http://www.kronikracing.com/Street_c_8-1-2.html