Im with you Nicky1980 run the twin coolers, there is probably a reason why Pitster brought out the lxrs with the twin coolers and even thou the engines a daytona not a zongshen it could only be good for it in keeping the engine temps down, the only time that extra 500 grams if that would mater would be if the bike was on Jenny Craig i mean who really gives a rats arse. I just also reckon they look good too. Well done mate this thing is gonna be a beast.