Shimano sora 3500 2x9sp braze on front mechexcellent value 9 speed sora front derailleur for road use features extra wide pivot link increases rigidity while reducing flex for improved shifting responsealuminium links and band to save weight and improve rigidityfor 9 speed drivetrainsmaximum top sprocket 50 53t16 tooth capacitychrome plated steel chain cagebottom pulla 2 year warranty is offered with all shimano products from chain reaction cycles 3 years on dura ace and xtr products buy shim