GRX Di2 shifters + RS785 brakes (post-mount)
I've got a 2016 Diverge which is post-mount. Anyone know if the GRX Di2 shifters will work with RS785 brakes? The Shimano compatibility tool says they are compatible, but the spec sheets for the shifters and levers call for different brake hose kits.
GRX Di2 shifter - SM-BH90-JK-SSR brake hose RS785 calipers - SM-BH59-J-SS brake hose Anyone using this shifter + caliper combination? |
In my experience, all of the two-piston Shimano calipers are interchangeable.
The RS785 calipers are re-branded XT, so if they work with XT, they will work with those. (Also, FYI: You can get the RS785 calipers along with the Di2 shifters for $250 at Universal Cycles. (I bought a backup set when the price briefly dropped to $199).) |
Originally Posted by wgscott
(Post 21955201)
In my experience, all of the two-piston Shimano calipers are interchangeable.
The RS785 calipers are re-branded XT, so if they work with XT, they will work with those. (Also, FYI: You can get the RS785 calipers along with the Di2 shifters for $250 at Universal Cycles. (I bought a backup set when the price briefly dropped to $199).) |
I don't have GRX, but I think the main difference is the pivot point is supposed to be more ergonomic for folks who ride the hoods.
I ride the hoods on the RS785 and they are the most comfortable brakes I ever had. |
Originally Posted by vinuneuro
(Post 21956031)
Wow that is tempting. It'd also allow me to reuse my brake lines saving another $60. I know GRX Di2 is good, but $450 better?
|
Originally Posted by vinuneuro
(Post 21956031)
Wow that is tempting. It'd also allow me to reuse my brake lines saving another $60. I know GRX Di2 is good, but $450 better?
|
I have a bike with GRX shifters and XT post mounted brakes.
|
Originally Posted by Marcus_Ti
(Post 21963740)
The GRX Di2 brifters cannot be bought. Shimano has missed every restock promise since August 2020. And the GRX Di2 lineup is part of that. If it isn't in stock now you're not going to see it until next year at soonest.
http://www.merlincycles.com/en-us/sh...eid=4e44856289 |
Originally Posted by Bryan C.
(Post 21965218)
You correct that they are hard to find. Merlin has the whole 2x GRX 815 Di2 groupset in stock right now.
http://www.merlincycles.com/en-us/sh...eid=4e44856289 And, of course, presuming Merlin even ships Shimano to the USA anymore. |
Originally Posted by vinuneuro
(Post 21956031)
Wow that is tempting. It'd also allow me to reuse my brake lines saving another $60. I know GRX Di2 is good, but $450 better?
|
Originally Posted by Marcus_Ti
(Post 21965228)
'Whole groupset'...other than that very page which shows they don't have brake rotors, and only a single size of one gearing of crankset.
And, of course, presuming Merlin even ships Shimano to the USA anymore. |
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