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Smooth, Quick Hydraulic Disc Braking
Introducing the Shimano Ultegra BR-R8170 Flat Mount Disc Brake Calipers.
To the delight of riders and mechanics alike, the new Ultegra BR-R8170 caliper delivers enhanced modulation, a quieter brake system, and an easier than ever bleed process.
The Ultegra R8170 disc brake caliper brings a new level of control to the road cycling world with enhanced modulation and a quicker initial braking point. Despite its smaller construction, the system is quieter than ever and easier to maintain.
Features
10% wider pad clearance decreases brake noise
Maintenance-friendly bleeding process
Weight: 146g (Front) 136g (Rear)
B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.
The product weight specified is an approximate weight based on the manufacturer's specifications (if available) or our measurement of one or two examples. For most products, the weight will typically vary by 5% to 10%.
Reviews Ordered by Most Relevant First
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1 stars
Replacement for BR-R8070 Caliper
by Six-O
Cycling Enthusiast
SE Texas
Shimano's compatibility chart shows this to work for the previous generation Ultegra 8070 braking system without having to replace the shift levers. My 8070 rear caliper coating was corroded and looked terrible. It stilled functioned properly. However, the new 8170's slightly wider gap seemed appealing. I had to nip off a couple of the mounting bolts so they didn't bottom out before fully tightening. After bleeding a couple of times, the rear brake works well. Since the caliper comes with a new set of pads, I figured the final cost of the caliper alone was what I paid minus the cost of a set of replacement pads, or about $50 after buying it on sale.
Reviewed 12/23/2022
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Excellent updates more clearance for rotor, bleeding made easy.
Had to upgrade my calipers due to the 12speed di2 upgrade and concern with compatibility of the older calipers and the new shifter/brake levers. The new design has made this a worthwhile upgrade. The additional clearance for the rotors is a welcome change alone almost entirely ending that rotor rub issue some folks experience that requires periodic readjustment of the rotors and brake pads. Bleeding the brakes has never been easier.
Reviewed 12/12/2022
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Better Brakes for Mountain Living
by FoxyFabrication
Cycling Enthusiast
Denver, CO
These brakes were a great deal for anyone willing to do their own maintenance and etc. Cheaper than the set that comes with the hose preinstalled. The shipping was fast my only negative is I wish the instructions provided by the manufacturer in the box were better.
Reviewed 10/27/2022
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