wireless brakes.

[fooferdoggie]

the best mechanical are these but th cost os more then the best hydraulic you use the when yo cant change over and want the best. https://www.paulcomp.com/shop/components/brakes/disc-brakes/i-s-klamper/

 

[Mr. Coffee]

the spyre is the only mechanical that does and its very expensive. all other mechanical only have one moving piston so they have to bend the rotor at least a little and yes I have used high quality mechanical. but they dont feel nearly as good as my 4 piston Shimano brakes. Plus I can get full power using only using one finger thats a very nice feel. you don't have all the resistance from the spring and cable.

I think Growtacs also have two moving pistons.

Agreed that nice mechanical brakes are expensive. And a pair of Klampers will set you back over $500. I think my next build (the Gravel Grinding Shred Sled (tm)) will have Klampers.

One nice thing about decent mechanical brakes is that you can usually overhaul them in the field with a multi tool. Also the good ones have tool-free adjustments so you usually just have to give those a quarter turn every week or so. Yes, there are now bleed kits where you can do a brake bleed at a trailhead but they are hard to find and not necessarily easy to use.

 

[mschwett]

Does any modern car have "brake-by-wire"?

lots of cars have brake by wire, including some that, believe it or not, increase pedal travel electronically as the brakes heat up.

i think it’s possible on bikes, but would have to be engineered so that they fail (gradually) closed/stopped, not open, if any element of the system ran out of power or connection. it would be a logical next step with wireless electronic shifting, and ideally engineered with the front and rear systems completely independent for safety.

it would simplify the headset design but not much elsewhere, since the calipers would most likely be connected to a central battery, as with di2, rather than a bunch of tiny batteries as with SRAM.

 

[AvalancheRun]

The only wireless brake I would like is something that electronically clamps the rotors when the bike is shut off. Van Moof had a security system kind of like that.

 

[MacCrackin]

Not a lot of actually showing them working, but quite a DIY feat, Tesla are looking at wireless steering and it's probably going to be normal within a few years.

10/10 for ingenuity.

To clarify a post found earlier in this thread -
from a tech engineer on disc brakes from
airlines to funny cars -
there's no such thing as one sided disc brake calipers.
Any caliper using single piston have pads on both sides of rotor where equal pressure is applied to both sides of rotor - is using a floating caliper.
Complex racing calipers with up to 8 pistons, are progressive design from small to large on each side. Using fixed caliper.
The internal square cut o-ring at each piston is what pulls the piston back when pressure is removed.
First sign of stuck piston is over heated rotors, where someone not trained, pushed back pistons to replace pads with exposed corrosion on piston, was forced back over o-rings,
and soon is siezed.
Cheers

 

[teskow]

Overly complicated and it just adds more points of failure. Removes your ability to feel the amount of brake you're applying. Technology is not the answer to every problem, and certainly not the answer to something that wasn't a problem to begin with.

Sounds a bit like Henry Ford. Simplicity and don't change it.

 

[PCeBiker]

,.. someone not trained, pushed back pistons to replace pads with exposed corrosion on piston, was forced back over o-rings,

Yeah,. you have to remove the corrosion and grease it up good before you stuff it back in the bore.

I trained myself how to do that.