From the fine folks at Euro Asia Imports comes the " BRASS KNUCKLE." If you're looking at an IRO or a Pake you should take a look at this frame as well.  The EAI Brass Knuckle is also a great upgrade for anyone riding a converted road frame.  It is made with a heat treated aluminum tube set by an un-disclosed, big name Asian builder.  When you look at performance and quality of the build the Brass Knuckle destroys the all other contenders in the sub $300 track frame class! The Brass Knuckle is a pure track geometry frame that will be winning many a match sprints and points races for years to come. It's also equally suited for aggressive and quick handling in or around town with a drilled front fork to accept a brake caliper if needed. 

The Brass Knuckle is available in two colors and five sizes with sloping top tubes.  The color options are a Khaki and a File Cabinet Grey with sizing as follows: