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Jengajuice

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About Jengajuice

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  • Location
    San Jose, CA
  • EUC
    MTen3(RIP), MSX

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  1. When I was first learning, I treated being able to mount and dismount with both legs to be basic proficiency. I figured it was something I needed to be able to do to be safe riding. On the MTen3, I did frequently use both legs. When I started riding an MSX, I was only able to mount with my dominant leg at first. And yes, a few days in I ended up in an unbalanced stop and dismounted on the weak/untrained side. I had trouble controlling the wheel and rammed the pedal into my ankle. Took off some skin and had a swollen ankle for a few days. Now that I'm thinking about it, I've fallen into the habit of only using my dominant leg again. Need to fix that. Thanks for the reminder.
  2. I pronounce it E. U. C. as well, but I don't usually say it. I usually say unicycle or wheel, and to the uninitiated, electric unicycle. Do note that I tend to spell out acronyms even when others declare some pronunciation as the One True Way. I advocate pronouncing it however you want and not minding how other do. Perhaps a minority opinion. Rawfull ahmguh lawl watif bubuk!
  3. Thanks, Planemo. This was very informative. I'm riding a second hand MSX 100V with some good mileage on it right now. I'll be sure to watch for signs if increased charge loss and add periodic board inspections as well. I do wonder the what the lifespan of the other components are. I know for caps it can be notoriously bad. What are the next most vulnerable components? I can manage replacing caps, and would definitely consider doing that, considering them a wear part. Replacing the whole control board seems like that would lead to supply chain issues, though. Not considering the caps, what is a reasonable expected lifespan of a control board? (Question for anyone. )
  4. Well, as I said at the end, I was ignoring the power required to ride along level ground. Tire inflation would be part of that. To account for it, you could subtract the strait and level riding power from the average (continuous) power rating of the motor. I just waved my hands and pretended the power rating of the motor was conservative enough it didn't matter. My mathematical musing were a lunchtime distraction, not a engineering endeavor. :-P O! M! G! I really need to fix my MTen3. Watching you reminds me of just how nimble and fun it is. I've got the replacement wheel, I just need to figure out how to get the pedal off the broken axle. Hard to get a nut off a broken bold.
  5. Playing with math here... cause I'm bored. 1 mile is 1609m 1609m * 0.18 = 289.62 An 18% grade is about 290m in elevation change over a mile. Rider (190lb) + MTen3 (22lb) + protective gear and other carried weight... I'll go with 250lbs. Let's call it 113kg. Gravity here on earth remains it's (average) constant 9.8m*s-2. Multiply those together to get the energy required to lift a 113kg mass by 290m in earth gravity... 290m * 113kg * 9.8m*s-2 = 321146 kg*m2*s-2 = 321146 J. The continuous power rating of the MTen3 wheel is 800W, which is 800J*s-1. So to find how long you have to ride at the continuous power rating, divide the required energy by it. 321148 J / 800 J*s-1 = 401.4s That's 401.4 seconds to per mile at an 18% grade. Which gives 3600s (in an hour) / 401.4s * mile-1 = 8.97mph. 401.4s / 60s (in a minute) = 6.69 minutes. Halve that as your only talking 1/2 mile. That's a 3.5 minute ride at 9mph. Of course, this completely ignores that power required to ride 9mph on level ground. And constant power ratings on the motor may be conservative. So you really shouldn't rely on that number. But it should give a sense of what the MTen3 is capable of. I've gone up much steeper grades, but only for shorter distances. Overpasses were never an issue, but that's only a couple hundred feet at most.
  6. I'm enamored with the design of the S18. It just looks fun, and it's designed to be fun too. I'd really like if it had smaller wheel, too, but I'd be more aggressive and ask for a 14x3". I absolutely love the absurdly nimble MTen3, but that 10x3" wheel is a bit troublesome sometimes. I figured a 14" would be a good compromise, but add suspension and it would be a impulse buy for me. The S18 doesn't quite have the range for a lot of the group rides, especially as I'd be riding it hard to keep up. It's not light enough for an anytime anywhere grab and go. I want the S16, but I just can't justify another 18" wheel ... yet.
  7. My MTen3 was easy. Turned it off and carried it. Though the couple times in a hurry to get on the train I failed to hold the power button long enough to turn it off and the wheel goes spinning alarm screaming away. >_< No really, it's not a dangerous uncontrollable machine. Perfectly safe! What I'd give for a kill switch... The MSX though... yeah. The coil whine(?) is pretty loud, especially in an elevator with others. The poorly positioned handle can lead to control difficulty if your not careful. Reduced max speed and torque so that it's less dangerous in crowds would be another option I'd like. Though having climbed onto a powered off IPS i5 and face planted when first learning... there had better be some unmistakable indicator that it's in limited mode.
  8. Another vote for straitening up some for a bit. I've also found relaxing, releasing unnecessary tension from my legs works too. Do both. ^__^ Building up needed muscles makes it much easier to relax. A lot of dynamic riding, carving / slalom, whatever can be quite a workout. I've done a lot of this recently and it's made a noticeable improvement. I also find shifting my weight on the petals, one foot mostly heel and the other mostly toe, works really well for killing wobbles. I use this now mostly for hard breaking and when straitening up isn't an option (uneven ground).
  9. Ugh. I find that to be both true and not. People who disregard the safety of cyclists and pedestrians surely gives no consideration toward EUC riders either. I've had cars blow past me WAY to close, or drive past to make their right turn in front of me. And then there's those that seem to panic, not knowing what to do. Pacing me as I ride in the bike lane, afraid to pass? I've had a oncoming car stop at an intersection with no traffic light or stop sign, only me in the left turn lane waiting for a break in traffic. Most drivers seem pretty sane. Maybe hesitate a little or ogle a bit. A few are idiots though, and present an out-sized distraction and danger. I've been riding with a bicycle helmet, sport goggles, and neoprene face mask (because it's cold). It was enough to save me big time on my fall. I've been looking to get a full face helmet, mostly to reduce the hassle. I full helmet instead of three separate pieces. Peripheral has been my primary source of reluctance, though. I haven't tried a helmet mounted mirror, but I've been riding with a small mirror on my arm. Leaves a lot to be desired.
  10. Rolling is good in some situations, but you have to be in control to properly roll. The rolls I've done have all been after an unplanned dismount and I'm stumbling, too leaned to recover. I have time to mentally plan and enough footing to control entry into the roll. Trying to roll as a reflex sound like a bad idea. Not locking your arms strait is probably the best reflex to develop. And keep your elbows out. Best advice I can give though is staying engaged in your ride, mentally and physically. The sooner you recognize your unicycle ride is headed toward a RUD (Rapid Unexpected Dismount), the sooner you can start planning your escape.
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