Doing a Post Crash Autopsy on the Begode Master V4

[@ScrubbyRocks]

I'm glad that you're ok. The main reason why I sold my Patton was due to the fear of having a failure issue while riding at a high speed. My EUC experience has been great the past 5 yrs but the risk of serious injury is very real. My worst fear was not crashing, but where I would land or hit after falling off the EUC. Be safe out there guys!

[@Duf]

Yep this incident realigned my reality a bit.

[@Randoman9987]

Same thing happened to me on a Master v1 I don't have any Begode wheels now - the Patton is all I need.

[@PaulA-pm3gx]

It seems like this tube valve failure has happened to others as well. In the comments, @archiejacobs6741 has stated the same thing happened as well. Maybe Jason eWheels needs to be alerted, and the issue taken up with Begode as well. There might be other instances as well. A recall might be needed. Thanks for the update.

[@Duf]

Yes I do recall a rash of tube failures being reported several months back. Jason is aware

[@ElectricUnicycles]

Nice that Jason got you parts even though the wheel was from Clark Pads 🙂 Will be interesting to see how that TNT tire is on the Master and if the tubeless option works. Kind of surprised that you did that mod because if it fails you could have another blowout 🙂

[@Duf]

Hopefully ti works, mounted easy with no sealant. Odds of that type of blowout on smooth road is not likely at all.

[@kayakeux]

3 rd of October, a unicycle rider died near Montreal. Daniel Fournier, a car turn and stopped on a bike lane, he crash on the car and fell on the street and got run over by a car. He was 40 and did not have your luck.

[@Duf]

Yep could have easily been me.

[@Kay0Bot]

In the mountain biking community, before switch to presta valves (which are annoying), the schrader valves would somtimes ripp out like what happen to you.

[@Duf]

I imagine in MTB there is a ton of stress on the tire/tube. I wasn't doing anything stressful

[@0xsergy]

i've ran super low pressures on my mtb for months after a broken wrist with no issues. mtb wheels are a lot bigger, lots more rim to provide friction against the tire compared to small euc wheels.

[@Kay0Bot]

@0xsergy thats is true for 99.9996% of users... you have realised your experience does not negate that this happened to a few dozen mountain bikers

[@gordmarshall5830]

Great to see you're recovering Duf. You may experience a premonition of another similar event as that crash was frightening to watch and will be embedded in your memory. The importance of safety gear cannot be over emphasized. Best Wishes, 6 pac Gord

[@Duf]

Thanks my man

[@fernandollambias8713]

May be your tyre was with low pressure , and because of that , the valve problem ? In motorcycle that happens ?

[@COBARHORSE1]

Did you add any tire sealant? #crash I almost forgot,... I see another hurricane is headed your way. Hope you are all prepared for it. Stay safe.

[@Duf]

No sealant necessary initially but I may add some Armodilloz. Thanks for watching till the end! Yep the panic here is beginning

[@grb1969]

@@Duf Do you raise your EUC fleet above storm surge level? Neighbors should know what the highest flood levels are in your neighborhood. I grew up on a floodplain and could talk about it for hours but I won’t.😉.

[@ConsilienceDVO]

Ride safe bro.

[@Duf]

Do my best

[@iamspock]

This looks like a case of too low tyre pressure allowing the tyre to rotate on the rim and taking the tube with it resulting in the valve stem being ripped off. I had this happen once on my bicycle tyre when the pressure was too low. I now ensure I am always using higher pressures and periodically check to make sure there has been no rotation (not possible with brass valve stems). Tubeless will solve this, but still best to not have your tyre rotate, so put some more air in your tyre.

[@Duf]

Hard to say, Begode had a run of tube failures

[@iamspock]

@@Duf There's an easy way to find out ... just mark the rim and tyre and then see if the marks move apart over time. You can do this even with tubeless tyres and not have to worry about a tube failure, and you will have your answer.

[@twentyninehairs]

Maybe I missed it, but just to be clear, I think the valve likely ripped off the tube after the vast majority of the air was already gone. That appears to have been caused by the rim spinning much faster than the tire. Maybe it could have been the final factor that caused complete failure, but I think it was unlikely to be an original root cause issue. Maybe it could have been the final structural failure that caused a sudden loss of control though... maybe. #crash

[@wspepsilon]

Yeah, was likely far below safe riding levels, which allowed the tube to slip, resulting in the torn valve. The question is, when did he start to lose air, and how fast? Was this something that could have been caught at the beginning of the ride by checking the psi pre ride, or did something halogen mid ride?

[@wspepsilon]

Honestly, tubeless systems should be incorporating a TPMS system natively.

[@Duf]

Yes I agree the valve did not rip clear off initially but the tear was definitely there, the rest of the tube appears fine. Thx for watching till the end!

[@Duf]

Sure cant hurt

[@twentyninehairs]

​@@DufHow would you know that there isn't a smaller hole somewhere else in the tube?

[@haroldsmith45302]

#crash Thank you for this equipment autopsy video. I am very glad you were (apparently) not seriously injured.

[@Duf]

Thx for watching till the end! I was extremely lucky

[@ryangross5446]

Yo Duf! Another entertaining and useful video. #crash indeed. I have ordered myself a Begode Blitz, and based on my own experiences as well as your recent tube fiasco, Ive decided to go with the tubeless option. Seems like it just makes sense given motorcycle and car tires generally dont have tubes. Did you throw any sealant in the tube?

[@Duf]

Thx for watching till the end! With the speeds that wheels travel today tubeless makes more sense. I have some Armodilloz I will likely add but the TNT tire sealed up great without anything.

[@OliGerard]

My suggestion is to avoid that killing 3 lanes road for the first test 😅😆 #crash

[@Duf]

Ah yes it will be a much more controlled environment

[@makswelt]

You definitely need better valve, maybe motorcycle will fit. Also I have a question: master’s rim can fit moto tyre, however it does not have additional groove inside to lock the tyre in place (like the s22pro or any motorcycle has for example), so the question is: don’t you need some kind of glue to glue a tyre, so it doesn’t roll relative to the rim (the rim is stationary, but the tyre moves around it)

[@0xsergy]

there is bead sealer which would lock the tire in place better, would make tire changes suck a lot more but it might prevent it from spinning as badly

[@Duf]

I'll let you know how it works

[@urthpainter]

#crash always good to see a repair or modification through with successful results!

[@Duf]

Thx for watching to the end!

[@norbelsemaj3870]

Ewheels Team is the Best

[@Duf]

They have helped me out many, many times

[@archiejacobs6741]

Was that the stock inner tube that came with your Master? My stock inner tube valve stem on my Master V4 ripped out just like that as I was casually riding down a football field. I was blaming it on too low air pressure, but now that I see it happened to you, I'm questioning if it just wasn't a faulty inner tube.

[@Duf]

It was the stock inner tube. Months back I heard a ton of people reporting apparent bad tubes in their Begode wheels. Mine had less than 100 miles on it

[@archiejacobs6741]

@@Duf Mine occurred within 1 week of taking the wheel out of the box, so less than 25 miles on mine when it happened. Hopefully enough people watch your videos to get the word out to make new Begode wheel purchasers be on the lookout and cautious. We appreciate you taking the time to make these videos.

[@Duf]

@@archiejacobs6741 Hopefully dude

[@steveo6034]

Duf you need to call the Tire Doctor lol

[@Duf]

I am earning my tire PHD

[@waynechiang1016]

So can you confirm that the tubeless tire does work on the Master ? I have the V1 and just experienced quick deflation while riding…

[@Duf]

I have it mounted and will be doing some stress testing of the tubeless tire later today.

[@waynechiang1016]

@@Duf why didn’t you get the angled valve stem? Wouldn’t that be easier?

[@Roskellan]

Talking of dodgy situations, I notice warnings of Hurricane Milton popping up in KZbin video's and given I don't even live in the States, that's a bit surprising. Given what they are saying. I'm not sure I would want to be around for this one.

[@Duf]

The eye of the storm should hit pretty well north of where I am

[@Roskellan]

@@Duf Glad to hear it - hunker down none the less, I would have thought.

[@jasonhornby3161]

#crash glad you are OK!

[@Duf]

Thank you, I was so lucky

[@grb1969]

#crash. I’m amazed that the chamfer wasn’t the problem. Ugh

[@grb1969]

What’s the tire model? Ok, TNT tire from the Sherman L. Thanks.

[@Duf]

Chamfer felt smooth. Thx for watching till the end

[@SaiyanEuc]

I know why you didnt take it apart more the first few times, it leaves you with less to remember on putting it back together, after doing it more you become more comfortable and confident that youll be able to put it back together so you take it apart more to make other things easier. #crash

[@Duf]

I think Go George Go once did a video saying how easy it was to change the tire on these style wheels because you could only remove a couple things to do it. I stuck by that, until recently.

[@kayakeux]

The washer should'n it be inside the rim? #crash

[@ElectricUnicycles]

Absolutely, IMO.

[@eucfng]

#crash dufman is not out, dufman is back in🤙

[@Duf]

Still standing

[@emmpak]

Do they make tubeless tire for KS S22? Crash#

[@Duf]

In theory this would fit a S22

[@CapitalWheeler]

Are TPMs available for this?

[@Duf]

I think Pidzoom solution may work

[@fiddlerJohn]

Thanks.

[@Duf]

Welcome!

[@normantorok5919]

#crash 😀 glad you and your wheel are healing up.

[@Duf]

Thanks man

[@onesky8647]

#crash Scary failure, this could happen to anyone. Glad you are alright. :)

[@Duf]

Yep, all about awareness

[@spartacus3570]

#Crash Forgot the #

[@Duf]

Close enough!!

[@Auld_Moaner]

£crash good job Duf 👍

[@Duf]

Thx buddy

[@Simonisms]

#crash bandicoot is a great game 🤪

[@Duf]

Creative

[@RonnieRides]

You nearly died, yet you are experimenting with tubeless on a rim that isn't made for tubeless, ride carefully. Installing the motor bolts with an impact wrench is not recommended, get yourself a torque wrench and torque them to spec by hand, hopefully you put loctite on them.

[@Duf]

This tire has been installed successfully on other Masters and has been working fine. However I will be checking PSI on my wheels before every ride. I snugged the motor bolts with the gun and then used my normal allen wrench. I have an automotive torque wrench but nothing that would work with an allen configuration.

[@OneWheelTwoSkis]

#crash much love

[@Duf]

Thanks bud!

[@MonkeyOnMyBackOutdoors]

#CRASH

[@Duf]

Thanks for watching till the end!

[@pjwarez]

#crash

[@Duf]

Thanks for watching till the end PJ

[@pjwarez]

Another Hurricane on the way... be safe!!

[@spartacus3570]

Crash

[@Duf]

Thanks!

[@Reikon_a]

#crash 🙃

[@Duf]

Thx man!

[@AJames-jr8kw]

Better late than never but I came across this which I found informative. "The Greatest Mystery of All Time - Where Do Valve Stem Nuts Go?" On the YT channel "driving 4 answers"

[@Duf]

Interesting

[@AJames-jr8kw]

@@Duf I thought so too. Especially when he showed an image of a torn out valve stem that looked just like yours.

[@eddiehenrard5251]

#crash

[@Duf]

Thx man!

[@anthonygilcrest]

#crash

[@Duf]

Thx!

[@EUCme]

#crash

[@Duf]

Thx buddy

[@rickymoore2787]

#crash

[@Duf]

More people watched this one till the end, thanks!

[@kb3vxb_ham_radio]

# crash

[@Duf]

Thanks man!

[@Lee.Davis_onesandzeros]

#crash

[@Duf]

Thx!!

[@azeman70]

#crash

[@Duf]

Thanks for watching