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My Yamaha AT2 125 Race Bike

This is a single that makes almost the same hp as my TA125 twin and I haven't really done much to it.
   
The swing arm is a bit longer than some of my other frames.
 

The pipe is from my 175 so it isn't the best shape.
I have run it a couple of times and it is quite fast and handles fine. Now I need to make another pipe and get a larger carb. I will also be installing a close ratio 6 speed from a later model MX175 so I will be able to do some more work on the porting.