Sportster Forty-Eight Upper Tree New from Joker! Replace your Harley-Davidson Sportster Forty-Eight model “built-in handlebar riser” top tree clamp with one of our versitile billet clamps! Replaces the stock “dedicated to one option handlebar clamp”, with mounting holes that accept pretty much any riser selection that’s out there. Aircraft inspired design CNC machined from billet aluminum. Available in our … Continue reading "Sportster Forty-Eight Upper Tree"