the definition of modified partial streamlining would love examples can i build a front fairing if so what are the limits.
If you are building your fairing the limits are defined in 7. F. 12 If you have a specific fairing question after reading that section 20 times please ask it... yes, I usually read them, then think about what I want to do, then read them, think, read them, ..... well you get the picture
tires do they need to be tubless guess im looking to build a 175cc mps-bg bike.
The tires do not need to be tubeless, but they do need to meet the speed spec. for the record speed. If there is no record you may be limited by the speed rating of your tires. They don't like it when you exceed safety specs
am i able to take the engine i have thats less than 175cc out to 175cc
Yes... in fact if you want to run it in the 250 class all you have to do is exceed 175cc
Have fun with your project