Bro, a couple of frens of mine told me that u have to skimm a little abit at the surface of the pully as to plug it to the shaft.. This is due to the pully surface touching the shaft connecting area surface.. why this thing happen? izzit this cam pulley are design to pnp kind of rather we have to mod it a liitle bit..
Many times I have said to follow UTQG rating but not 100% since many say some tyres high treadwear rating but fast wear off, some AA traction but traction not really there but of course there are other factors like...