Rossifumi need help

[98shaikh]

I saw your post on exhaust restriction an you said your rs50 was restricted in the expantion chamber. did removing this increase performance at all. i have an rs50 at the moment and it seems very slow (top speed of 45mph0

[BBK Rossifumi]

I cut along the expansion chamber with an angle cutter took out the little pipe then cleaned out the inside, welded it up and spreyed it black. My bike before this did 30mph i then did this to my exhaust and down geared it and i could hit 60 no probs if i left the gears as they were i may have got 65 at least. i had over 70 down hill aswell.