Trek Supercaliber SLR 9.8 GX AXS Carbon Red SmokeThe Supercaliber SLR 9. 8 GX AXS is an ultra light carbon XC mountain bike that's ready to lay down rubber on race day. Its SLR Mountain Carbon frame is as light as it is meticulous, with a high modulus lay up that gives you all the stiffness you crave, and none of the weight. XC courses get rowdier every year, so it's equipped with a 110 mm fork and 80 mm of IsoStrut rear suspension to smooth your roll without kicking pedalling efficiency to the