Fizik kurve aluminium saddlethe kurve saddle adapts to your every twist and turn to provide greater comfort and flexibility the results and analysis of extensive research together with rigorous lab and field tests has resulted in the choice of a new material for the re flex areas kevlar which provides a superior combination of flexibility and incredible durability featuresshell reflex composite kevlarrail mobius cold forged aluminiumcover advanced elastic cover weight 225gdimensions