NEW Shimano XTR BL- M9120/BR-M9120 Disc Brake and Lever - Front, Hydraulic, Post Mount, Finned Metal Pads, Gray Type_Vests With the GR 1600 you

With the GR 1600 you definitely are

Tubeless Accessories: Tubeless tape and tubeless valves included (tubes installed

BB/Frame Interface: Specialized Carbon OSBB

The single-ended SRAM/Shimano compatible cable end is weld-cut for easy installation

NEW Shimano XTR BL- M9120/BR-M9120 Disc Brake and Lever - Front, Hydraulic, Post Mount, Finned Metal Pads, Gray Type_Vests With the GR 1600 youShimano's XTR M9120 Enduro style hydraulic disc brake system increases brake rigidity for greater bike control, and optimizes braking performance. 4 piston Enduro brake system offers high performance brake control with reduced input force at the finger tips Banjo type connection and inboard hose routing Lever provides greater flexibility and an action optimized cockpit layout Lever can be adjusted to suit any hand or riding style with tool free reach