DeRosa Idol

[cyclintom]

I got parts in to finish the hydraulis plumbing. But the bleeding kit contained the funnel with a tiny scew-in that was less than half of the size of 5 mm bleed cap screw on the lever. So I had to order another bleed kit with specific adapters.

On the Merak I received the 12 speed front deraoilleur and had problems installing it mostly because the limit scews were not marked high and low and I finally got tired and stopped working on it. All that is left now is to install the front inner. Also the "super-light" braze-on adapter slips and eventually had to be greatly tightened rather than the recommended 5 n/m. My recommendation is to buy a Campy adapter if you're working on such a bike. The different in weight is only grams and the cost of the Campy is $20 more. But it will not move when set to the proper tension.

[AMuzi]

Post by cyclintom
I got parts in to finish the hydraulis plumbing. But the bleeding kit contained the funnel with a tiny scew-in that was less than half of the size of 5 mm bleed cap screw on the lever. So I had to order another bleed kit with specific adapters.
On the Merak I received the 12 speed front deraoilleur and had problems installing it mostly because the limit scews were not marked high and low and I finally got tired and stopped working on it. All that is left now is to install the front inner. Also the "super-light" braze-on adapter slips and eventually had to be greatly tightened rather than the recommended 5 n/m. My recommendation is to buy a Campy adapter if you're working on such a bike. The different in weight is only grams and the cost of the Campy is $20 more. But it will not move when set to the proper tension.

Repetitive I know, but a clever solution may be to RTFM.

Shimano MTB lever oil ports are big, Shimano road lever
ports are small. Some might say that doubles tool and
fixture investment to no other good purpose.

[cyclintom]

Post by AMuzi

Post by cyclintom
I got parts in to finish the hydraulis plumbing. But the bleeding kit contained the funnel with a tiny scew-in that was less than half of the size of 5 mm bleed cap screw on the lever. So I had to order another bleed kit with specific adapters.
On the Merak I received the 12 speed front deraoilleur and had problems installing it mostly because the limit scews were not marked high and low and I finally got tired and stopped working on it. All that is left now is to install the front inner. Also the "super-light" braze-on adapter slips and eventually had to be greatly tightened rather than the recommended 5 n/m. My recommendation is to buy a Campy adapter if you're working on such a bike. The different in weight is only grams and the cost of the Campy is $20 more. But it will not move when set to the proper tension.

Repetitive I know, but a clever solution may be to RTFM.
Shimano MTB lever oil ports are big, Shimano road lever
ports are small. Some might say that doubles tool and
fixture investment to no other good purpose.

Well, GRX isn't MTB parts so why would it have those huge ports for relatively miniscule amounts of hydraulic fluid? And why would the Shimano part in a Shimano box have that rediculously tiny bleed hole?

By the way - when I'm bleeding the system do I pull the lever to fill that reservoir? The video I rewatched didn't say. Or do I leave the levers alone and just wait for all of the air to bleed out? That would seem to be the correct way.

[cyclintom]

Post by AMuzi

Post by cyclintom
I got parts in to finish the hydraulis plumbing. But the bleeding kit contained the funnel with a tiny scew-in that was less than half of the size of 5 mm bleed cap screw on the lever. So I had to order another bleed kit with specific adapters.
On the Merak I received the 12 speed front deraoilleur and had problems installing it mostly because the limit scews were not marked high and low and I finally got tired and stopped working on it. All that is left now is to install the front inner. Also the "super-light" braze-on adapter slips and eventually had to be greatly tightened rather than the recommended 5 n/m. My recommendation is to buy a Campy adapter if you're working on such a bike. The different in weight is only grams and the cost of the Campy is $20 more. But it will not move when set to the proper tension.

Repetitive I know, but a clever solution may be to RTFM.
Shimano MTB lever oil ports are big, Shimano road lever
ports are small. Some might say that doubles tool and
fixture investment to no other good purpose.

I have installed 5 sets of disk braikes. The original Shimano brakes bled without a single problem. There was something wrong with the Tektro system and it wouldn't easily let the air out. Leaving it overnight tilted up allowed the air to work its way out and then it worked fine.

Now this GRX does not bleed like the Ultegra system did. So I looked at the video for GRX and it showed the system as being bled opposite from the other ways. They showed you bleeding from the lever to the rear disk rather than the opposite way as I did on previous systems.

So perhaps you can explain why this would be different? I bled the first five bikes according to the manual. Since I bought this 10 speed GRX at the same time, my assumption was that it operated like the previous road systems. Wouldn't you expect air to rise in the system and bubble out into the cup? But I didn't get any bubbles. There are no leaks and all of the connections are dry, The shoes look barely worn. But they do not "pump out" to full engagement. The disc's are new.

If you bleed a set of Shimano brakes and then get another set to bleed do you reread the manual?

[cyclintom]

Post by cyclintom
I got parts in to finish the hydraulis plumbing. But the bleeding kit contained the funnel with a tiny scew-in that was less than half of the size of 5 mm bleed cap screw on the lever. So I had to order another bleed kit with specific adapters.
On the Merak I received the 12 speed front deraoilleur and had problems installing it mostly because the limit scews were not marked high and low and I finally got tired and stopped working on it. All that is left now is to install the front inner. Also the "super-light" braze-on adapter slips and eventually had to be greatly tightened rather than the recommended 5 n/m. My recommendation is to buy a Campy adapter if you're working on such a bike. The different in weight is only grams and the cost of the Campy is $20 more. But it will not move when set to the proper tension.

rreds to me last night that I should simply set the front derailleur like the rear - by setting the limit screw for the outside and the inside and let the lever do the shifting since it only moves the front derailleur one shift at a time. This is the way OI used to set them up but over the last couple of years, they have the limit screw mechanism hidden from view and I have been fiddling with them because I don't know what limit screw is what.

[Frank Krygowski]

Post by cyclintom
I got parts in to finish the hydraulis plumbing. But the bleeding kit contained the funnel with a tiny scew-in that was less than half of the size of 5 mm bleed cap screw on the lever. So I had to order another bleed kit with specific adapters.
On the Merak I received the 12 speed front deraoilleur and had problems installing it mostly because the limit scews were not marked high and low ...

SO many problems!

[Zen Cycle]

Post by Frank Krygowski

Post by cyclintom
I got parts in to finish the hydraulis plumbing. But the bleeding kit
contained the funnel with a tiny scew-in that was less than half of
the size of 5 mm bleed cap screw on the lever. So I had to order
another bleed kit with specific adapters.
On the Merak I received the 12 speed front deraoilleur and had
problems installing it mostly because the limit scews were not marked
high and low ...

SO many problems!

He had a choice of two screws, and he couldn't figure out which one did what

[AMuzi]

Post by Zen Cycle

Post by Frank Krygowski

Post by cyclintom
I got parts in to finish the hydraulis plumbing. But the
bleeding kit contained the funnel with a tiny scew-in
that was less than half of the size of 5 mm bleed cap
screw on the lever. So I had to order another bleed kit
with specific adapters.
On the Merak I received the 12 speed front deraoilleur
and had problems installing it mostly because the limit
scews were not marked high and low ...

SO many problems!

He had a choice of two screws, and he couldn't figure out
which one did what

Not having a coin to toss at that juncture can slow up some
operators.