While your bike can be made fully custom, we've displayed some featured builds below to give you some ideas to base your own build off.
Shimano Ultegra Di2 Disc | DT Swiss PR1600 | 700x25C
SRAM Force1 | DT Swiss ER1600 | 700x28-45C
SRAM Rival1 | WTB STS i23 | 29x2.5" Monster Clearance
Kookaburra (XC or Trail)
SRAM | Rockshox | Raceface | 29x2.5"