Im Billy, Ride a 2006 Piaggio NRG Power DD Liquid Cooled. i havent tuned it in any way yet, although it has had a new belt because the old one snapped, and broke the oil pump in the process, so im premixing aswell. i do have an Arrow Extreme exhaust lying about somewhere, and new jets arrived yesterday, so im hoping to get these fitted sometime. also, i have two sets of rollers lying round somewhere, one set are poling and i think the other came with the exhaust. hoping to get some clutch springs when my fortnightly payment of E.M.A comes through :lol: Question i have = how do rollers work? and would i need to make them heavier or lighter when i put the jet and exhaust on? Thanks in advance Billy