power valve cylinders [Archive]

christophere251

11-07-2006, 07:10 PM

What r the advantages and disadvantages over non power valve!?

250r4life

11-07-2006, 08:14 PM

advantage is more bottom end... disadvantage is cost... do a search- there is more info

400EX QUADER

11-07-2006, 10:44 PM

smooth power...