roost pipe for tpr

[vulin8]

hi, i have a question i have top performances racing cylinder, carb. dell'orto 20.5, etc. and i have ordered from guy from roost to make me pipe for tpr, but few minutes my friend told me, that he bought one for due+ for aerox, and he says that he can't make it going good like it should, it's always in high rpm but not going good (sorry don't know how to say that) he says that it would go good only on cylinders like MHR, MHR TEAM, POLINI EVO etc.

please tell me is that true cause i don't know what to do then

and sorry for my bad english

 

[roost]

It's normal that it works on high rpm. As do all my pipes. But what he means that it "can't make it going good, like it should"?

 

[vulin8]

It's normal that it works on high rpm. As do all my pipes. But what he means that it "can't make it going good, like it should"?

he can't find appropriate rollers and springs, i hope you understand me