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    From =?UTF-8?B?Y3ljbGludG9t?=@21:1/5 to All on Mon Mar 17 21:19:38 2025
    How much lever pull is there supposed to be on modern disc brakes. The old original brakes used to have half of the lever distanceto full braking while the Ultegra I have is using almost 7/8ths full lever pull. The brake pads have very little wear and
    the brake pistons appear to be extending all the way up to very close to the discs. I'm waiting for a front derailleur now which is kind of weird. I bought a new one for $27 and used one were selling for twice that.

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  • From Roger Merriman@21:1/5 to cyclintom on Tue Mar 18 11:50:51 2025
    cyclintom <cyclintom@yahoo.com> wrote:
    How much lever pull is there supposed to be on modern disc brakes. The
    old original brakes used to have half of the lever distanceto full
    braking while the Ultegra I have is using almost 7/8ths full lever pull.
    The brake pads have very little wear and the brake pistons appear to be extending all the way up to very close to the discs. I'm waiting for a
    front derailleur now which is kind of weird. I bought a new one for $27
    and used one were selling for twice that.


    That’s too much I’d a) check you’ve bleed the brakes correctly and b) check
    for adjustment of the bite point which some levers do have.

    Roger Merriman

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  • From =?UTF-8?B?Y3ljbGludG9t?=@21:1/5 to All on Tue Mar 18 15:05:34 2025
    On Tue Mar 18 11:50:51 2025 Roger Merriman wrote:

    That?s too much I?d a) check you?ve bleed the brakes correctly and b) check for adjustment of the bite point which some levers do have.




    That rings a bell. I remembe there being some sort of adjustment for lever pull but forget where it is. Can you expand on that?

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  • From =?UTF-8?B?Y3ljbGludG9t?=@21:1/5 to All on Tue Mar 18 17:37:07 2025
    On Tue Mar 18 11:50:51 2025 Roger Merriman wrote:
    cyclintom <cyclintom@yahoo.com> wrote:
    How much lever pull is there supposed to be on modern disc brakes. The
    old original brakes used to have half of the lever distanceto full
    braking while the Ultegra I have is using almost 7/8ths full lever pull. The brake pads have very little wear and the brake pistons appear to be extending all the way up to very close to the discs. I'm waiting for a front derailleur now which is kind of weird. I bought a new one for $27
    and used one were selling for twice that.


    That?s too much I?d a) check you?ve bleed the brakes correctly and b) check for adjustment of the bite point which some levers do have.

    Roger Merriman





    I looked up where the adjustments were and they were all set to max so the only problem area has to be the brake pad thickness. Although they look good, even small amounts of wear can cause a lot of lever pull. So I ordered new pads.

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  • From AMuzi@21:1/5 to cyclintom on Tue Mar 18 13:56:24 2025
    On 3/18/2025 12:37 PM, cyclintom wrote:
    On Tue Mar 18 11:50:51 2025 Roger Merriman wrote:
    cyclintom <cyclintom@yahoo.com> wrote:
    How much lever pull is there supposed to be on modern disc brakes. The
    old original brakes used to have half of the lever distanceto full
    braking while the Ultegra I have is using almost 7/8ths full lever pull. >>> The brake pads have very little wear and the brake pistons appear to be
    extending all the way up to very close to the discs. I'm waiting for a
    front derailleur now which is kind of weird. I bought a new one for $27
    and used one were selling for twice that.


    That?s too much I?d a) check you?ve bleed the brakes correctly and b) check >> for adjustment of the bite point which some levers do have.

    Roger Merriman





    I looked up where the adjustments were and they were all set to max so the only problem area has to be the brake pad thickness. Although they look good, even small amounts of wear can cause a lot of lever pull. So I ordered new pads.

    $5 says it's air in the caliper.

    Modern road disc are prone to that in the rear as the
    caliper is above the low point in the line and your air
    pocket is above the bleed port.

    --
    Andrew Muzi
    am@yellowjersey.org
    Open every day since 1 April, 1971

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  • From Roger Merriman@21:1/5 to cyclintom on Tue Mar 18 18:42:38 2025
    cyclintom <cyclintom@yahoo.com> wrote:
    On Tue Mar 18 11:50:51 2025 Roger Merriman wrote:

    That?s too much I?d a) check you?ve bleed the brakes correctly and b) check >> for adjustment of the bite point which some levers do have.




    That rings a bell. I remembe there being some sort of adjustment for
    lever pull but forget where it is. Can you expand on that?


    Andrew is probably more your man! I have no idea how consistent the
    adjustment has been and I don’t know which shifter you have!

    <https://si.shimano.com/en/dm/RADBR10/adjust_free_stroke>

    Would get you started but I don’t know if all shimano shifters use same system as been few years now since hydraulic moved to road, so enough time
    for some variables!

    Roger Merriman

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  • From =?UTF-8?B?Y3ljbGludG9t?=@21:1/5 to All on Tue Mar 18 20:38:35 2025
    On Tue Mar 18 17:37:07 2025 cyclintom wrote:

    I looked up where the adjustments were and they were all set to max so the only problem area has to be the brake pad thickness. Although they look good, even small amounts of wear can cause a lot of lever pull. So I ordered new pads.




    I looked through my bleeding stuff againj and found a larger syringe. I used that on the rear disc again and got another load of air out. This brought the rear brake lever out to a normal position. It made no difference with the front brake though so I
    will put new shoes in that and see how much improvement that makes.

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  • From =?UTF-8?B?Y3ljbGludG9t?=@21:1/5 to All on Tue Mar 18 20:43:14 2025
    On Tue Mar 18 13:56:24 2025 AMuzi wrote:
    On 3/18/2025 12:37 PM, cyclintom wrote:
    On Tue Mar 18 11:50:51 2025 Roger Merriman wrote:
    cyclintom <cyclintom@yahoo.com> wrote:
    How much lever pull is there supposed to be on modern disc brakes. The >>> old original brakes used to have half of the lever distanceto full
    braking while the Ultegra I have is using almost 7/8ths full lever pull. >>> The brake pads have very little wear and the brake pistons appear to be >>> extending all the way up to very close to the discs. I'm waiting for a >>> front derailleur now which is kind of weird. I bought a new one for $27 >>> and used one were selling for twice that.


    That?s too much I?d a) check you?ve bleed the brakes correctly and b) check
    for adjustment of the bite point which some levers do have.

    Roger Merriman





    I looked up where the adjustments were and they were all set to max so the only problem area has to be the brake pad thickness. Although they look good, even small amounts of wear can cause a lot of lever pull. So I ordered new pads.

    $5 says it's air in the caliper.

    Modern road disc are prone to that in the rear as the
    caliper is above the low point in the line and your air
    pocket is above the bleed port.




    Bleeding backwards instead of from the rear lever to the actuator corrected that. But it made no difference to the front. I was surprised how much air was in the line and after I had already pulled out a lot.

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