Can I fit a 7.87" (200mm) fox Rc on Med Evo?

[pedro]

this shock is readily available at a good price, and seems to work.

[GrimJack]

Depends.

First off, it's a wee bit short.  Stock i2i is supposed to be 8.25 inches, and anything under 8 inches will slacken your headtube angle by a fair bit.  I would likely vote against it just on that basis.

Second, if you ride a Med or Small frame, you will have problems with the resevoir on the shock, basically requiring you to run a 24" rear wheel.  That would slacken things even more severly.

On the Large or Way Big frames, you can install this easily with an existing 26" wheel.