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    Brake lever motor cutoff sensors

    Will the motor cutoff sensors on the brake levers work if one of them is removed? I recently bought a used Surron where the previous owner replaced just the front brake and calipers with aftermarket parts. There was no cutoff sensor on that brake but I just noticed that the stock rear brake also had it's cutoff sensor removed. If I add a cutoff sensor back on the rear brake assembly will it work or do both front and rear cutoff sensors need to be wired up? I looked at a few wiring diagrams online and it was not clear to me and I don't feel like doing exploratory surgery if anyone already knows the answer! The motor and controller are stock.

    #2
    Originally posted by claudinius13 View Post
    Will the motor cutoff sensors on the brake levers work if one of them is removed? I recently bought a used Surron where the previous owner replaced just the front brake and calipers with aftermarket parts. There was no cutoff sensor on that brake but I just noticed that the stock rear brake also had it's cutoff sensor removed. If I add a cutoff sensor back on the rear brake assembly will it work or do both front and rear cutoff sensors need to be wired up? I looked at a few wiring diagrams online and it was not clear to me and I don't feel like doing exploratory surgery if anyone already knows the answer! The motor and controller are stock.
    Should work just fine the only difference is that the cutoff will only work on the rear brake , not both.

    Comment


      #3
      Originally posted by claudinius13 View Post
      Will the motor cutoff sensors on the brake levers work if one of them is removed? I recently bought a used Surron where the previous owner replaced just the front brake and calipers with aftermarket parts. There was no cutoff sensor on that brake but I just noticed that the stock rear brake also had it's cutoff sensor removed. If I add a cutoff sensor back on the rear brake assembly will it work or do both front and rear cutoff sensors need to be wired up? I looked at a few wiring diagrams online and it was not clear to me and I don't feel like doing exploratory surgery if anyone already knows the answer! The motor and controller are stock.
      I thought the Sur Ron wasn't "street legal". I don't understand why you would want street legal mandated Safety switches possibly hampering the ride performance of your Off road bike in the first place. The switches are only there to kill the throttle under braking if your not a proficient enough rider to do so yourself.

      Good old Govt safety standards and oversight. They fix everything

      Comment


        #4
        Originally posted by lectrik al View Post

        I thought the Sur Ron wasn't "street legal". I don't understand why you would want street legal mandated Safety switches possibly hampering the ride performance of your Off road bike in the first place. The switches are only there to kill the throttle under braking if your not a proficient enough rider to do so yourself.

        Good old Govt safety standards and oversight. They fix everything
        Ya, this bike is for my son who is just learning to ride offroad. We were on some intermediate trails a few weeks ago and he dumped the bike a couple of times on some steeper downhills. I'm guessing that at least having a throttle cutoff on the rear brake will minimize the chances of that happening until he gets a bit better

        Comment


          #5
          FWIW coming from decades of moto riding I don't really "get" brake cutouts - nothing like that on a ICE moto... I tried them on my bike but after a while just went with the rear and then eventually took them both off and happier for it...

          As always, YMMV

          Comment


            #6
            Originally posted by AZguy View Post
            FWIW coming from decades of moto riding I don't really "get" brake cutouts - nothing like that on a ICE moto... I tried them on my bike but after a while just went with the rear and then eventually took them both off and happier for it...

            As always, YMMV
            Think about being a newb, only controls are on the handlebars, you're going down a steep hill, some may have a tendency to slightly rotate the throttle just due to physics...I think when the back brake is grabbed (which comes with it's own potential problems in a situation like this), the throttle will be cut off (if the two are fighting each other) and the bike will stay upright more often than not. YMMV!

            Comment


            • AZguy
              AZguy commented
              Editing a comment
              IMO there is tremendous usefulness in being able to use brake and throttle simultaneously, especially on two wheels - that this is more important for staying upright, especially when riding in technical terrain

              If one is just learning they should stick to terrain that may push their limits, but not push them too far

            • Ten8DoWork
              Ten8DoWork commented
              Editing a comment
              My background is gas supermotos but I would think this applies to electric bikes too... One technique for doing really tight turns (like trying to do a 360* in a parking spot) is to slightly drag the rear brake. As AZguy stated, it does actually help to stay upright. Not to mention in fast turns, it's pretty common to be on both throttle and brake simultaneously.

              I get what you're saying about downhill riding. Maybe it's style dependent. I'm not much of a downhill trail rider so I wouldn't know.
              Last edited by Ten8DoWork; 10-17-2022, 04:48 AM.
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