Re: Disc Compatibility?

zen cycle <funkmasterxx@hotmail.com> wrote:

On 3/5/2025 2:17 PM, cyclintom wrote:

On Tue Mar 4 21:55:28 2025 Roger Merriman  wrote:

cyclintom <cyclintom@yahoo.com> wrote:

Andrew, I have GRX levers and Ultegra  actuators. It acts as if
these are
not compatible. The levers on both front and rear will not "pump" the
brake pades close enough to the discs so that they actuate with
almost no
pull. Instead they pull almost all of the way to the bar.
 
The pads are hardly worn and there are no leaks from the connections.
 

Should be, uses same pads/hose fitting kit and so on, and appears to be
same calipers broadly from Tiagra to Dura Ace, though Cues is I believe
doing its own thing! Aka less performance more simple design.

 
 
 
 
What I was trying to discover was if the 10 speed GRX levers didn't
have the capacity of the 11 speed Ultegra actuators. That occurred to
me in a dream.

 
Which is where tommy gets most of his silly ideas - dents popping out of
top tubes, for example
 

But since they are compatible it must be air in the

system. The thing that bothers me is that all of my previous disk
bikes had hard front and back brakes. This setup has the same pull on
front and back and the front is a straight shot up and bled without a
problem.

 
Because the rear caliper line entry is at an unusual angle. The front
points straight up.
 
Need to remove the rear caliper form the frame so it can be at the
lowest point in the system, line pointing up.  Rap the caliper with a
tool handle while purging the fluid. It has air in the nooks and
crannies of the caliper.
 

 
 

It is though very similar to way folks with a brain injury work or rather
don’t I guess, aka confabulation, hence his doubling down as he believes
it.

With apologies for Facebook link!

<https://m.facebook.com/story.php?story_fbid=10154178800268586&id=13533633585>

I totally believed it at the time, was some 6 months post brain injury and
my wife couldn’t get me to understand that it was a joke, took me a day or
so to figure it out!

I’m still unable to accurately parse, more complicated folks intent has
made me rather literal, and wife missed my ability to get jokes and so on.

I occasionally ride around there, though it’s spectacularly muddy at
moment, though is bright and sunny now, I was up on the on the (which is
old road that runs though Avebury) Ridgeway on Tuesday, glorious day, did
nearly eat a hedge on the decent down to Egypt! As even the Magic Mary’s
packed up with mud! I do enjoy the various lumps and bumps in the area ie
henges and other things!

Roger Merriman