Xray have introduced their new spring steel 2.5mm pin rear driveshafts for the XB2 and XB4 buggies. They are available in various dimensions to cover a wide range of track conditions and drivetrain designs. First up is the 72mm variant for the use with the XB2 in gear diff configuration and on lower grip, small and tight tracks. Next up is the 73mm variant for gear diff XB4’s run on large carpet and high-grip astro tracks. Last but not least comes the 75mm driveshaft for ball diff equipped XB4’s run on large dirt or low-grip astro tracks. All are made of high-quality Hudy spring steel, they feature 2.5mm pins and add to the already existing 67mm, 69mm, and 71mm variants.