Spare Tire

Sit start with a left hand on a sloping jug, and a right hand on a sloping crimp. From there, crank a right heel to reach the sloping shelf above. Then traverse left, around the bulge on the slopers until the shelf feature ends, and top it out.

On the North-face of the Rubber Rock, the problem starts about 4 feet from the water's edge on the northwest corner.

Pad or two and a spot.