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ShimanoUltegra BR-R8070 Flat Mount Disc Brake Caliper
Item # SHI00FX
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What do you think about this product?
December 7, 2020
Gets the job done.
- I've put it through the wringer
These are working just fine on my bike using RS685 shift levers (i.e. the "old" versions before Ultegra), though I'm getting some uneven pad wear since I installed it ~1600 miles ago. IMPORTANT POINTS: 1) The "rear" brake caliper doesn't come with the adapter plate shown in the image! That's *really* annoying, since my bike required the adapter for the rear brake when using a 160mm rotor. 2) I *think* the front caliper comes with the adapter by default, hence the weight difference shown by Competitive Cyclist, but it's worth double-checking. 3) The actual calipers are identical, so I think the only difference between "front" and "rear" is whether the adapter plate is included. Some bikes can run 140mm rotors on the rear with no adapter, but many will need the adapter to run 160mm rotors on the rear. On most bikes, the front adapter is required regardless of 140mm or 160mm rotor size. I hope that saves somebody some trouble! Just buy two "front" calipers if you need the adapter plates on both the front and rear. Or buy the adapter plate separately if it makes sense in terms of overall price. ---------- For those mixing and matching old levers with new calipers: I purchased a new frame that had *flat mount* instead of *post mount* for the brakes. I was able to use a post mount adapter on the front to re-use my old R785 calipers, but there wasn't enough clearance on the rear of the bike to use the adapters, hence this purchase of the modern Ultegra calipers. Huge hassle to figure that out and I wasted money on post mount adapters for the rear that I couldn't use. Looking back, the cost of the post mount to flat mount adapter ($20) is 1/3 of the cost of getting a proper flat mount caliper, so I should have gone all-in and replaced both calipers with flat mount versions. Plus, the post mount to flat mount adapters are ugly and ungainly looking.
September 17, 2021
Good info! I snabbed one to replace a hard to fine GRX rear caliper and I plan on switching my 140mm rear to 160mm, hence will need that adapter. Thanks.
March 11, 2019
Easy and reliable
These are easy to set up. Never have problems installing these. Very easy to work with and seem very reliable.
DJ Redundant II
June 10, 2020
Hello, Do these calipers come with the housing, end caps, bolts,....to set these up? Or do the hydro shifters come with these things? Thanks
June 29, 2020
The calipers come with the brake pads are hardware to mount. It does not come with brake lines. Those come with the shifters. Another detail I discovered is the front and rear are the same just no adapter plate.
January 22, 2019
Is the break pad included?
November 7, 2019
March 11, 2018
Can you run this caliper (or the Dura Ace for that matter) with the older ST-RS685 lever? I assume they use the same hydraulic cable, but they seem to call for different hose fittings (BH59 vs. BH90). Is the hose different? Or just the fitment screw? Thanks
December 7, 2020
This is too late for you, but for others: Yes! It's no trouble to mix these new calipers with the old levers. I'm running the old RS685 levers with one of these new Ultegra calipers on the rear of my bike.