TWM Quick Action CNC Billet Fuel Gas Cap with Gold Handle fits Yamaha YZF R1 R1M R3 R6 FZ09 FZ07 XJR FZ1 First class Italian engineering and machinery from the Marchesini family! Quick release gas cap as used by top AMA and European Race teams. Precision machined from billet aluminum and finished with high thickness anodizing. Incredible weight savings! These fuel caps weigh in only at 100grams (3.53oz), as opposed to the factory Yamaha cap that weigh in at 390grams (13.76oz)! Beware of replicas, TWM is the original inventor of the quick action fuel cap!