Ok. I have a Cannondale Trail 2, not to be confused with the trail sl2 bikes. My fork has a normal arranged steerer. I n the future I would like to upgrade the fork but it seems tapered steelers rule. Does anyone know if my headtube will allow for a tapered steerer with new headset and what size the headtube actually is?. I know the Sl bikes have 1.5″ headtube this is where I get a touch confused as the frames are near identical