Servo actuated front brake

Had a search but couldnt find anything, apologies if this is in the wrong section.

Has anyone tried running something like the mbs truck with brakes in the front, actuated by a servo something similar to remove the tether to the board?

Was curious to see how something like that would go, for both safety (no battery issues, backup on hill bombs ect) but also the potential advantages with regards to handling on a 2wd board.


Uhh… Are you picturing an entirely separate battery/ESC/remote for the brake servo? Cus if not, then you are adding just another component which will be susceptible to all the same failures as your main drive system.

It’s like adding two remote receivers for “redundancy” :woozy_face:


Fair point, was mainly thinking about heat, dumping to much charge in over a long descent and the like. I suppose having them as completly different systems could work but leads towards adding a point of failure rather than an effective redundancy system :confused:

You certainly wouldnt want any unexpected servo jiggling if there was a disconnect…

Was not even thinking about whole system failure.

Can you think of any advantages? Or impact on riding feel. The idea of being able to have front brakes that dont require heavy motors, and or a larger battery to handle the needs of dumping large spikes of current ect

I suppose running with the cable is one way to avoid some of the hiccups that may come with funtime servo jiggle and avoid system failure locking out the “saftey” aspect.

To be clear. I have no idea what i am picturing specifcally outside of running a physical brake in the front.

I’ve used a cable actuated brake pulled by a lever strapped to my leg. You lean back to apply pressure, works fairly well.


As in something like the mbs system with the handle duct taped to your leg? Holstered and removable or just pull the line strapped to the thigh kinda thing?

Have you ever riden a bike with front and back brakes? usually you only ever apply the front brake after or at the same time as the back break because otherwise you loose effective steering and get a subpar break at best. (at least from what I remember. It has been a while since I’ve had and used a bike) I’d imagine the same issue would occur if you added a front brake to an esk8

There would definitely be some interesting adjustment curves. But the majority of your stopping comes from the front as you weight shift.

Add flipping the board forwards to the list of potential cons along with magic servo jiggle.


It was an earlier version of this device, but with a bicycle bike cable drilled through the rotating part


Fucking madman indeed. Pretty gnarly way to do it, how did you find it?

My simple brain is thinking that by having it actuated by body it would lock you into a certain motion, making it a bit awkward?

Edit. Just checked your post history, that bikeboard is also bonkers.


Does one of the shafts slide out / remove the tether in case of stack? Or do you whirlybird with the leg brace?

It’s my own design, and it does lock you partially. You have 2 “control knobs” to turn when using a legstick. You can lean your whole body (braces you against acceleration/braking), and you can wiggle your leg around (higher fidelity). You can set it up so that the motion feels natural, but it’s easier to pull off with electric brakes as opposed to mechanical.

Yes, the upper shaft falls out and the tether kills my throttle sensor in case of streetface.

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As in have the lean actuate electric brakes (motor braking) because you can map the curve/sensitivy for smoothness?

If you were not locked to using body motion (ie were holding the handle/it was attached to a remote) would manual brakes have been more viable/ added any value? Or could you see any value in any way?

Thats a pretty wicked system, do you have a write up on it to point me towards?

Rheostatic braking modules exist, why not use those?

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Yes, the range and sensitivity of motor brakes can be tuned to be whatever you want. Also important is the linearity, where you flow from throttle to brakes across a wide angle range. Mechanical brakes are more jarring in my experience due to the more sudden onset, where you get nothing for most of the travel and then all the braking force happens in 5 degrees.

I’m not sure whether hand actuation would make it easier or more difficult to brace against braking forces. I’ve never ridden an esk8 with a remote so my perspective is limited.

I’ve been living with my model for a year now, and I know I need to make some small edits for long term reliability. I’ll publish the plans when I’m done.

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That makes sense. Was partially thinking that hand control may give that brake “feel” like you would have whilst riding a bike.

That would be awesome, there is no way im up to building anything close to the complexity of what youre doing but definitely curious on your thoughts of having a separate brake system for non drive wheels.

How does what you are currently doing “feel” and is this on a eskate or the bikeboard currently?

Forgive me for the wall of questions :slight_smile:

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No problem @howardsbrows , that’s what we’re here for.
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The mechanical complexity is unfortunately necessary, all the joints are there to give you 6 degrees of freedom to move your body around (no hard stops anywhere). It would work like crap without all that articulation. If you want mechanical brakes only, the simple option is to use a Dirt Surfer style bump lever at the rear:

I definitely get the desire for front brakes, by 2x 6355 board sometimes feels like it doesn’t have enough punch for emergency stops at high speed. I’d want to solve the smooth engagement problem first, like I never use the mech brake on my bikeboard just because the hard engagement is awkward. It should be possible just by putting a stiff inline spring somewhere.

Leg throttle control feels just as automatic as IMU balance control, but you keep the traction feeling in your feet cuz the board isn’t tilting. Resolution is super high and ramp speed can be kept very low. The downside is that you get a coupling between some motions (either leaning into a turn or bending your knees) and throttle. You can compensate manually but it takes a while for your brain to learn to do it automatically.


Function is to dump power into the module and burn as heat or through a trailing wire? Need to do a bit more reading on this.

esk8s have regen braking, why not use that?

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Thanks for the explanation :slight_smile: totally see the need for the complexity (really cool way of making it a complete hands free ride)are your comments purely on the bikeboard setup specifically?

And was the setup mech disc, rim, v brake? Ect.

Given your experiences, do you think there is any possible benefit to mech fronts, cable actuated? Given the comments from yourself and others realistically it seems a hand actuated cable would be best to initially tinker with if to do it at all and not have the issues of weight transfer learning issues, reduced complexity for points of failure as well as an easier time with modularity of break strength input (thinking rim style break akin to bicycle for feedback)

Is it a quest for no appreciable benefit in your honest opinion? (weight handling saftey)