need help to choose in between a mk or Evo

[quicksand]

Hi im choosing in between the metrakit pro race (am6) or the polini evo (am6) for a cross bike the Evo has a bigger piston than the mk will this make a difference please help me to choose which is better mk or evo

 

[melf #50]

well , Polini only has the evo in 50cc version , so do you want a 50cc or a 70cc?

 

[Browni]

well , Polini only has the evo in 50cc version , so do you want a 50cc or a 70cc?

Polini doesn't call it EVO, but it's a very powerful cylinder with a one pieces cylinder head and a 1 piston ring 50 mm piston, it's not a Pro Race but it's better than the Malossi MHR Replica (with 50 mm piston).

I think Polini is better for street or sport usage, and Metrakit is only good for race or absolut hobby!