Formula Cura 4 vs Hope T3 V4 vs Shimano XTR BR-M9120

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Formula Cura 4 vs Hope T3 V4 vs Shimano XTR BR-M9120
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Posted: Jul 18, 2019 at 6:03 Quote
SCPL wrote:
I have gold C4 180/203mm and done 250km with them.
My bike weights around 12,8kg.
They don't look as fancy as red T3, which I had, but they match very well with Kashima coating, for me it's same colour.
Modulation is very linear and I wasn't surprised by it.
At the begining power is very subtle, great for everyday riding in city.
In the end, they are very strong. I can't tell that they are or not stronger than T3/XTR, but I never though that I need more power.
Only weakness which I found are disks. Formula doesn't have floating disks yet, hope that they will release some.

Warning. THEY WONT WORK WITH HOPE DISKS, due to dimensions.

Hey there SCPL... not sure if your listening since this is an older thread.

What is the comparability issue with hope rotors? Too thick? Diameter? Clearance with floating disc rivets?

Thanks!

Posted: Jul 18, 2019 at 15:34 Quote
Niner09 wrote:
SCPL wrote:
I have gold C4 180/203mm and done 250km with them.
My bike weights around 12,8kg.
They don't look as fancy as red T3, which I had, but they match very well with Kashima coating, for me it's same colour.
Modulation is very linear and I wasn't surprised by it.
At the begining power is very subtle, great for everyday riding in city.
In the end, they are very strong. I can't tell that they are or not stronger than T3/XTR, but I never though that I need more power.
Only weakness which I found are disks. Formula doesn't have floating disks yet, hope that they will release some.

Warning. THEY WONT WORK WITH HOPE DISKS, due to dimensions.

Hey there SCPL... not sure if your listening since this is an older thread.

What is the comparability issue with hope rotors? Too thick? Diameter? Clearance with floating disc rivets?

Thanks!

Hello. Hope disks are floating. They have like 6 circle spacers which are about 2-3mm wider than disk. Sorry, I don't know what's the name of this part. This part is blocking C4 caliper. Described situation occurs for front 203mm rotor. On rear I have 180mm Hope disk and it's ok, but very close to pads. Generally I don't recommend combining Hope disks with C4.

Posted: Jul 19, 2019 at 3:30 Quote
Thanks for following up! Thought that may be the issue. I’ve run into that before combining other brakes with hope rotors.

Posted: Jul 25, 2019 at 20:00 Quote
Apologies for the late post on bleed tips but this might be helpful to someone.

The Epic Bleed Solutions method for AVID and Formula DOT worked really well for me - http://www.epicbleedsolutions.com/resources/pdf/epic-instructions-avid-formula.pdf

I tried the method Formula outlines for mineral oil on their Youtube channel but ended up with a soft (workable but soft) lever feel.

The difference between the two methods is that the Epic side has you degas the fluid (not sure if that is really needed for mineral oil but a ton of tiny bubbles were pulled out in each syringe), using the syringe clip to create the vacuum rather than holding the plunger (minor difference), and the rubber band on the lever at a point in the process.

Using this method I ended up with about 10 minutes or so of tiny bubbles coming out of the lever/master cylinder and moved my lever to a couple of different angles.

When done the lever was nice and firm.

YMMV of course but for me this method was easier to execute on my part I think.

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