Nothing lasts forever, and with something as important as braking, you should certainly replace parts before they fail. So, if your braking has been on the sluggish side recently consider picking up a new set of pads. Suitable for the BR-R9170 Dura-Ace, RS805 or RS505 callipers you get two pads and spring to swap in and out and get that like new performance.
• K02S Brake Pads
• Fits: BR-R9170 Dura-Ace, BR-RS805, BR -RS505,
• Spring Included
• Compound: Resin
• Quiet & Powerful braking performance