Electronic & Hydraulic Shifting (Di2, Ui2, customisations)

So you're saying as long @Jaap run 4.7" tyres on his road bike, 4 pots should be ok?

And if he pairs them with levers designed for four pots. Or, more accurately, a brake with a larger piston surface area. Assuming the Saints do have a larger piston area, and I think they do, as the lever is (was?) designed to push more fluid that the two pot levers.

I'm not saying you're wrong, only I'm missing something. friction between the pads and disk is used to break, higher the friction the greater the breaking. increase friction by creating more pressure between the pad and disk, to create more pressure you pull the leaver which moves the pads towards the disk. modulation is the ability to control this pressure so the brakes don't grab and you can feather.

For me it logicically follows that if you have brakes that require less movement of the leaver per distance the pads move yo would have less ability to control the modulation as them leaver movement for a certain pressure range would have to be so much more accurate. it also seems logical that brakes that require more movement of the leaver per distance the pads move you would have to less accurate to provide the required pressure between pad and disk and therefore better modulation.

I don't know what this means tho

when the pads hit the rotor, they'll be working at a higher MA.

I don't know what this means tho

when the pads hit the rotor, they'll be working at a higher MA.

I'm assuming that the leaver is designed so that the initial part of the stroke works at a low MA to clear the free stroke - the period when the pads haven't contacted the rotor yet. As the lever goes through the stroke the MA increases.

But ouch my brains etc.

Also disc brake thread >>>>>>

I got a bit sidetracked.

Adjustable levers are the key. I

Which the Shimano road hydraulic levers certainly don't have.

It does have adjustablity, just.. non-existence (very useful to stop your levers rattling tho).

What's MA?

A Master of Arts degree.

What's MA?

What's ma what?

What's ma MA ma man's sayin?

What's ma motivation...

https://en.wikipedia.org/wiki/Mechanical_advantage

"Ma ma ma ma. Ma Baker She never could cry.
Ma ma ma ma. Ma Baker But she knew how to die."?

https://www.youtube.com/watch?v=2E5sxuSRg6A

Locking up the rear is real easy with the R785, but from the hoods applying full force on the front lever and transfering all my weight behind my saddle I can't lock up the front or do an endo.. So I was thinking about replacing the front caliper with a saint caliper

Go on, please do. Interested in results for tandem building.

Sound like a rebleed, and setting up again.

Mechanical advantage. So if i apply 20psi at the master cylinder I get out 200psi at the caliper.

so is that not linear through the stroke (snigger) of the leaver?

Not necessarily. The mechanical linkage can alter the mechanical advantage of the lever, and on Avid brakes the master cylinder bore is tapered slightly.

Doubt that's the case, from the drops I have enough power to slide the front wheel with one finger.. Just from the hoods I'm lacking leverage

Bigger disc at the front?

Fork might only be rated up to a certain size?

New bike time.

New bike time.

*With XTR Di2, naturally.

.... And drops.

Endos 4 lyfe