what your looking at is my greatest challenge yet. Rohloff speed hub disc 500 / 14. Mating it up to a very nice velocity blunt 29er rim useing those dt butted spokes and wisely chosen brass nipples. This hub is cool cause it has all the usable gear combos of a regular 3 X 9 mtnbike drivetrain in one small hub. Just twist the grip shift and chose between 1 for climing or 14 for fast decending or anywhere in between. Its heavy for sure but now no broken derailuers , hangers, or mis shifts from cable gunk.