Onewheel cheap mods

  • Maybe an EGO blower!

  • Last year riding my V1 daily for miles in the very wet Northeast Ohio spring weather, despite Badgering months before, moisture got to the BMS and caused it to do strange things, dumping me a couple of times. First, I took out the BMS. Then, tired of charging EGO batteries and the onboard battery both, I took the onboard battery out -- replacing it with a weighted dummy battery box. I had picked up a technically unusable wiring harness that was throwing an error 16, cut off all the little lines except the main power cables and used that to connect to the EGO battery on the fender. Works just fine. No back lights, but I rarely ride where they would be meaningful.

    This year, nervous that the wet weather might get to (or might possibly have gotten to already) the BMS in my Plus, I made a similar modification. This time I completely took out the battery, BMS, battery box, and wiring harness -- with no dummy box in its place. I must say the Plus feels light beneath my foot with only the footpad and bumper there. Road noise is slightly increased. Slight adjustments to riding make it feel somewhat like a different board, adding some variation to my many thousands of miles. Works and feels fine, but no back lights. With the weight of the board reduced, the weight of the 7.5ah EGO on the fender seems less noticeable -- at least on the paved rails-to-trails I mostly ride. Now the only batteries I have to charge are the EGOs.

    (A footnote on charging the EGO batteries: Household funds paid for an EGO Nexus Power Station with two 7.5ah EGO batteries included. In the case of an electrical outage, like we had in high winds here last week, I contribute my other EGO batteries to the power station for longer run time. In return I can use the 7.5ah's for my Onewheel, and for EGO firewood-cutting chainsaws. And, the EGO Nexus Power Station doubles as a very convenient, four EGO battery, sequential charger. Beneficial all around! The Nexus, nearly silently with NO generator fumes, ran our upright freezer and some lights for close to 24 hours until line service was restored.)

  • @lemur I like the green wrap-a-round version for functionality.

    I tried last summer the fix a piece of bristle style door sweep to the underside of the footpad, allowing the bristles to brush up against the tire. Didn't work very well for a couple of reasons; crumbs of debris stacked up on top of the bristles, wet or dry; in dry the bristles acted like a van de graaff generator creating static electricity, the whole board was thick with dust when I got home :) .

  • Hollow underneath! No stock battery, no stock BMS. The emptiness there adds springiness to the trailing footpad, and a lightness underfoot that feels uplifting -- to my riding style.

  • @blkwalnutgrwr
    So on your OW+ Did you cut and seal off all except the battery (+,-) to connect your EGO up to?

  • I dig that open cavity look, kinda cool with nothing there.....

  • @LidPhones -- In a word, yes, I clipped all the little BMS and taillight wires, and had an XT90 soldered in on the battery cable in place of the original connector. The first harness I did that to for my V1 had had a broken wire and an Error Code 16; for the second one for my Plus it pained me to modify an actual working harness because I could not locate another damaged one.

  • @blkwalnutgrwr ever catch the remaining rear plastic on rocks or things? I'm curious if the rear bumper could hook into something and bring you down.

  • @stinkyface -- Rarely it is that I ride around catchable obstacles, so I had not thought of the possibility -- thanks for noticing that it could happen. Maybe I could put a float plate underneath, or maybe do away with the bumper entirely. You've set me thinking...

  • @stinkyface -- Now, without the bumper to catch on anything. Thanks! (Edit: I also added a couple fat sheet metal screws up through the rails into the tail end of the footpad.)

  • My stomach clenched and dropped figuratively after a fifteen mile ride yesterday. Putting the Onewheel in the boot of the car I noticed the XT60 to XT90 adapter to the SOLE and ONLY power (the EGO battery) cocked at an odd angle. Tugging at it, the adapter broke apart easily. Oh my guts!!! Over any bump the broken solder connection could have let go, and I would have been rudely surprised and hurt on the ground. Hence the clench of my stomach just thinking about it.

    Apparently a routine tip-over cracked the solder joint. And this is not the first adapter to fail -- one was likely the cause of my fractured ribs last month. Looking closely at the broken adapters I see that NO WIRE TWIST was used with the solder -- it was just one connector directly soldered to the other -- with only the solder and the shrink wrap holding them together. Easily broken!

    Needless to say, I have now eliminated the XT60 to XT90 adapters from the set-up, going back to straight XT60s and taping them each time. The reason I had gone to XT90s was anti-spark, and a more secure connection. But the connectors on the EGOs were still XT60, so I had found adapters on ebay. Mistake! Oh! -- Be careful out there!

  • @blkwalnutgrwr Oh damn glad you caught that!
    Not exactly what I want to hear having just finished redoing my VnR setup that still has an XT90 >.>

    Shocking the solder cracked enough to come right out , I struggle a little soldering those myself so I can see why it may have happened.

  • Emergency Onewheel brakes got tested today. Riding my V1 for the first time in months today, the power cut-out mid-ride after some miles of riding. (I suspect my shoe was not suited to the sensor.) So, my natural reaction was to shift weight back to rebalance, and... more... to slow down...
    Of course, though, regenerative braking does not work when the motor is free-wheeling. Luckily, just last week I had outfitted my V1 with a first generation of emergency brakes -- short lengths of bicycle tire screwed onto my hollow rails. Though not perfect, they did what I needed them to do -- slow me down, absorbing some of the forward energy. At a somewhat lower speed I did tumble backwards... with no damage or hurt. The emergency brakes left two black skid marks on pavement.
    Now to think about modifying them to make them better!

  • @blkwalnutgrwr maybe look at urethane rollerblade brakepads?
    alt text

  • The skid marks -- I went back with my Plus to see. The distance of skid was about 12 feet. Looks like I wobbled, pressing harder on one trailing rail, then the other. Again, I am thrilled with how much energy skidding on black rubber bicycle tire dissipated -- after the skid the backwards fall was gentle! And again, this was freewheeling after power cut-out.

  • @blkwalnutgrwr I can just imagine the look of confusion on some pedestrian coming up alongside.

    They look down and see a single wheeled device but behind it are 2 distinct parallel skid marks that look identical to that of a vehicle with at least 2 wheels.

  • Hi @Lia -- On another site someone commented that Sonny Wheels added a Slider with locked wheels to the back of one of his boards as his emergency freewheel brakes. The skid marks from those would likely look similar to the skid marks above.

  • The newest version of freewheel brakes: Cut-down 2x2 wood fastened inside the rails, with heavy black rubber stall mat slices attached beneath. This version has not yet been tested in real life. (The extensions make mounting the board easier, too, by softening the sharp angle of repose created by the lift.)


  • @blkwalnutgrwr said in Onewheel cheap mods:

    This version has not yet been tested in real life.

    Just add the sink already!

  • @blkwalnutgrwr That motor matches your rig well. @stinkyface provided inspiration for the idea with his polished hub. Glad to hear you are making good use of it. That front foot pad looks familiar also. So happy to see parts live on and continue helping a wheeler ride.

Log in to reply