I have RS685's on my Canyon and the rear (left) brake feels a little spongey. I understand this means it potentially needs bleeding, however I know there are a couple hacks that can be done to help this.
(see about 7mins in) https://www.youtube.com/watch?v=gQ_oIAPuQR8&t=451s
I know I need several tools including the bleed kit (syringe and bucket etc) as well as the mineral oil - what is the black tool used for securing the bleed pipe to the calliper?
Next question, how the heck do I setup hydro disc brakes from the beginning?
I have a Whyte Wessex on it's way to me, but I already have a full 105 groupset from my current commuter/winter road bike. The only way I could afford to get a Wessex was by selling the R8020 shifters and brakes to my other (see: better) half. Anyway, I then managed to get some RS685's really cheap so need to take off the R8020 on the Wessex and replace it with the RS685 I have.
I simply have no idea what I am likely to face. I will use the cables (hydro outers) that come with the Wessex, but how do the hydro cables attach to the STI's and the callipers. Do I need any tools/parts other than the bleed kit and my usual toolkit?
I.e. is it as easy as emptying the hyfro fluid, removing the hydro cable from the calliper/sti and plugging in the new calliper and sti before filling again?
Replacing the fluid seems like a fairly easy job and there's plenty of youtube vids showing how to do it, but I cant find any good videos showing how to drain hydraulic fluid or any showing how to cut to size hydro cables and full setup the system.