Hoods are one of those parts nobody thinks about until they're torn, faded, or peeling back at the edges — and then suddenly the whole cockpit feels wrong every time you settle in on the tops. The Shimano Dura-Ace ST-R9150 Di2 Dual Control Lever Hoods are the factory replacement covers for the R9150 Di2 mechanical rim brake shifters, sold as a pair for the left and right levers. If yours are torn, sun-faded, or gummy from years of bar tape sweat and sunscreen, these are the direct-fit answer.

This is the specific hood shape for the 11-speed Dura-Ace Di2 rim brake generation — ST-R9150, not the hydraulic ST-R9170 and not the newer 12-speed R9250 shape. The Di2 lever body is slimmer than the mechanical ST-R9100 hood because there's no cable mechanism inside the bracket, so these hoods are cut to that narrower profile. Trying to reuse an R9100 mechanical hood on an R9150 lever won't work, and the R9170 hydraulic hood is a completely different shape.

Installation is straightforward if you're already comfortable working on your own bars. Peel the bar tape back a few inches from the top, roll the old hoods forward off the lever body, and work the new ones on from the front. A quick dunk in hot water softens the rubber and makes the stretch a lot more forgiving — most people who fight the install are trying to force cold rubber over the bracket.