My first EUC with no experience

[rcgldr]

On 10/6/2022 at 5:14 AM, mrelwood said:

Speed is the key yes, but gyroscopic forces do not balance the wheel. They just slow down tilting and turning the wheel. What you're thinking of is a cone effect from the tire.

mrelwood is correct, cone effect aka camber effect is why a wheel becomes stable. I also have a V8F and it will become stable and self-balancing at around 6 to 8 mph, where you won't have to do balance corrections if riding in a straight line. More on this below:

On 10/6/2022 at 5:37 PM, homero said:

One question, after practicing today, the EUC had 3 green bars, but suddenly the bars turn one yellow and one red, took it inside my place to check the battery range, it was 56%, I am charging it at this moment, is this normal? I run a self diagnosis and every thing came out in good condition.

Yellow + red bar if below 50%. On my V8F, the bars are blue. I use EUC World and have it call out speed, battery charge, distance, and time every 15 seconds, to use as an audio speedometer. I get the yellow + red bar just after I hear 49% charge. The percent charge is based on voltage, and there is some voltage recovery if I park my V8F, returning it back to 3 blue bars for above 50%. 

 - - - learning how to ride - combined from my prior posts:

Both Kuji Rolls and Wrong Way (Adam) recommend learning to ride using support to mount and launch before attempting free mount. Learning to ride first means you can skip the one foot glide drills normally used to learn to free mount, and instead just push the EUC and step on. It's less tiring and less prone to bruising of the inner calf.

I recommend watching Kuji Roll's how to ride video of a girl learning to ride on a V8, with some modification to what is shown in the video. It's suggested to lower pressure to 25 psi, but that is due to the light weight of the girl in the video. I weigh 187 lbs and started at 30 to 35 psi on my V8F (I now have it at 40 psi).  Kuji shows some one foot glide drills, with the goal of being able to step off and keep the EUC from rolling off into cars since they are in a parking lot, but the girl is able to step off without issue so she never does those drills. Kuji mentions using pressure on the inside toe to turn, but this would result in an EUC accelerating as well as turning. To turn, tilt the EUC inwards (inner foot down, outer foot up), which will cause an EUC to turn due to camber (cone) effect.

https://www.youtube.com/watch?v=t6o8ZMlo5ko

As seen in Kuji's video when the girl first tries to ride, extending arms for balance helps. For slower speeds, you can yaw (twist) steer via arm flailing (flail left to steer right and vice versa), for balance and to guide the EUC. Example of a 3 year old arm flailing.

https://www.youtube.com/shorts/z9YiHu5HJ6o

As seen later in Kuji's video (at around 8 minutes), at a bit faster speed, at around 6 to 8 mph, the V8 becomes stable and self-balancing (within reason), and the girl is able to relax her arms and is tilt steering. At at stable speed, try leaning forwards | backwards by small amounts to accelerate | decelerate, which shouldn't be an issue. Next, learn to tilt steer (inner foot down, outer foot up), first small tilts to see how the EUC will respond, then try a weaving pattern, and then large radius turns.

I used this video as a guide for tilt steering. The girl is on a S18, with minimal movement, no twisting, no carving (Marty Backe | Duf style but with turns), just leaning and tilting the S18, very stable. Due to the tire, speed, turning radius, ... , she tilts the S18 less than she leans.

https://www.youtube.com/watch?v=-hWMwK3Cfs0

For slow speed tight turns, the EUC is titled a lot while the rider barely leans. This is an advanced skill (balancing at low speed):

https://www.youtube.com/watch?v=xqoNhGEhk2Y

Wrong Way made a video on how tires affect the camber response to tilt:

https://www.youtube.com/watch?v=NsXW4OKnmWc

The V8F has a skinny 2.125 inch wide tire, which isn't as responsive to tilt as the S18 with it's 3 inch wide tire so the V8F needs to be tilted more than an S18 to make the same turn. 

Once you can basically ride, then to free mount (without support), just push the EUC forward with one foot on and step on with the other (no need to do one foot glide drills which Wrong Way mentions near the beginning of his video). In Wrong Way's video, Kate had already ridden 60 to 80 km using support before attempting free mount on a 77 lb Veteran Sherman as seen in his video and she gets it on her second try.

https://www.youtube.com/watch?v=qW-y5RiecMc&t=634s

Being able to tilt steer at various speeds and turning radius will take the longest to learn, but at first, go about the same speed (around 8 mph or so), to reduce the variations. Once you can ride reasonably well, work on being able to move arms and|or look around without upsetting balance or changing direction.

 - - -

I started on a V8F when I was 69 years old (now 70). I work out with free weights and I'm in decent shape. My wife took a few videos of me on my V8F. After about 15 minutes or so using support to mount, rock back and forth, then short runs near a fence, I ventured away from the fence and was able to arm flail at 3 to 5 mph to do laps around a tennis court on my first attempt. Normally learning to ride at slow speeds is done after learning to ride at stable speeds (a rider does have to be able to start and stop). I could see I was hunched over in the video, which I corrected afterwards.

https://www.youtube.com/watch?v=zPyy84EThmM

I switched to a long straight (outdoor parking lot) where I could ride at 8 mph for 40 seconds at at time. I learned speed control and basic tilt steering.  On day 5, since I could basically ride, I attempted free mount and got it on my third try after compensating for my only time on a grassy field. I then moved to a very long straight at a park. This video was taken at night, and from the headlight, you can see how stable the V8F becomes at around 8 mph, and I lower and relax my arms:

https://www.youtube.com/watch?v=keDvRMScO1g

Video from almost a year later.

https://www.youtube.com/watch?v=yjD9sWQHoSA

Edited October 8, 2022 by rcgldr

[homero]

so. my V8F app tells me that for now I can drive 15 mph. (I got my EUC 4 WEEKS AGO) is this going to change automatically?

 is there a notification that the app sends? how this works? the range suppose to be 22 MPH, thanks.

[OldFartRides]

Wheel knows best….

[rcgldr]

4 hours ago, homero said:

so. my V8F app tells me that for now I can drive 15 mph. (I got my EUC 4 WEEKS AGO) is this going to change automatically?

 is there a notification that the app sends? how this works? the range suppose to be 22 MPH, thanks.

There's a second "I agree" check box, that you need to click on to enable speed past 25 kph (15.5 mph). I think this can be enabled as soon as you receive the V8F. If using imperial units, setting max speed to 21 mph results in 20 mph. The workaround is to switch to metric, set max speed to 35 kph, then switch back to imperial, and it will be set for 21 mph. However that's Inmotion app speed, which reads about 7% higher than EUC World GPS speed, so GPS top speed for lighter riders is about 20 mph. I weight 187 lbs (85 kg), and don't exceed 18 mph GPS speed to have a bit more margin on my V8F, and mostly ride at 12 to 15 mph.

Edited October 11, 2022 by rcgldr