I'm crying inside for the Guru. Sure it was weird and ugly (like many of us), but it was fully functional (unlike many of us). What is done is done and unless you make a "how to repair the frame you cut a chunk out of" video later, it's goodbye.
Great video. Love the justification in confirming the gt frame was strong enough to take disc brake. Then over engineering and putting brace in. Thats a true engineer. 👍
For the most part, I enjoy your content quite a bit, but this video is fantastic. “Hey I know stuff and can articulate it without being a prick, and actually have a personality” is a dying art. 👏
Hah! That’s funny, but I’ve had another video, similar to your (but with no talking). In that video I’ve shown how I’ve welded and reinforced a 2014 GT Avalanche caliper mount and the tube, that it sits on, on the frame. It was destroyed previously and we’ve reinforced it with style. Please, check out the video. It would be a big pleasure to know your opinion on what we’ve done with that frame. So, please, consider leaving a comment, telling us what would you’ve done differently. Thank you.😎
I do exactly this: 1:57 for every ride these days. And I can't get enough of under-biking now. Then again I live only a few 3 miles from a mtb park and it would suck to ride squish 2.3s paved for much longer than that without airing up and down.
To the person who asked a question about commuting with no shower, baby wipes and deodorant. That's it. If you'll be extra sweaty, add a towel to the equation.
I thought it was implied, but definitely don't ride in whatever you are working in. Bike to work, Get nekid, Baby wipe yo bad self, Pit stick, Work clothes, Start the rat race.
I'm welding a iso tab on my rigid fork on my 99 Diamondback outlook cause I got a. Bafang disc brake hub motor with rim and new schwalbe marathon tire for like 40 bucks, with a tektro caliper and rotor. Fork is thick like the black one on the GT, so I'm sure it will be fine. Welding a tab on is cheaper than lacing a new Rim brake rim on for me
re: commuting without a shower: I used to (when I went to an office instead of my basement) use these big individually-wrapped anti-bacterial wet wipes designed for a quick body wipe down. There are a lot of brands.
Anyone else here REALLY enjoy patching tubes? I got a couple that are more patches than tubes...one of them close to 20 years old and still going strong :)
Lol i generally don't show any of it, but if im not sure i will justify with some educated research. Most people suspect things are much weaker than they actually are.. but I was taught to work with a safety factor of around 5.
@@Spindatt i get it, depending on the application you choose safety factors if people knew how lean planes and weight sensitive structures are calculated they wouldn’t use them.
I look forward to the GT vids , new builds are fun . Would you ever build your own frame ? Most of the bikes I owned were re builds I did myself , I always wanted to build my own frame , build my own bike the way I want it .
It was dead long before I got it. Never mentioned it really but the rear triangle was absurdly twisted. Tire always rubbing unless I placed the wheel “just so” and the brake always tweaked to the right. Yes; we could have tried to straighten it. Though, it’s steel is better used in other places.
so.. here's the thing// the brakes on the fork already deal with them forces. literally NBD.. my GF dead stopped her indie 4 luckily with a puffed up handlebar bag... the fork bent the rim bent.. I had 203mm rotors and I'm pretty confident it was all the impact forces.. also I was a welder as a teen in the 90s.. and I'm AMT-S composite structures.. tech as you are.. but helped my brother study for his engineering civil.. replaced with surly big dummy fork again with 203mm rotor... now welding a 96 tange rocky mountain and getting amped up with videos of the same sort... yeah I'll reinforce the frame but the fork...add the mount IS the reinforcement.. people hop and do trials with these forks.
You mention how people are scared of used carbon. Is my fear irrational about my aluminum road bike breaking. Do you know if it’s actually common for frame failure to happen with a pretty lightweight aluminum. How long have u seen aluminum last for?
I've seen failures in all materials after years of abuse, though i would say my tricross will last my lifetime.. as long as I don't have a reeeeeally bad crash with it
Thanks for answering man, shame you’re like 4000 miles away, got a spare trials bike you could borrow. If you’re every coming to South Wales let me know and I’ll arrange some riding 👍
some day, when the funds are there and the world is open. I will be walking aimlessly around south wales sending you IG messages hoping you are free that day to do just that.
Qwestion. And I ask this with all due respect, Do you talk like you are on camera when the camera is off? Has it become engrained in you? I sometimes mumble, I am told, when I am werking on something I am completely wrapped up in. HR.
No its more the other way around I think. Anyone i've met, and eventually become friends with, have always come back after watching the channel saying: wow, it's literally just you but on camera. hahaha
@@Spindatt Here you are: You made a lot of mistakes while analyzing this task. First of all, you assumed only the braking load case for the calculations, and meanwhile you should calculate the resultant force from several load cases that may occur together - e.g. braking plus the load from hitting an obstacle (hole, stone, curbstone) - of course taking into account the weight of the cyclist and the bicycle. Moreover, you should consider what the distribution of forces will look like during a sudden turn. Second, the static load case will not be a critical load case at all. The worst thing you should take into account is the fatigue , with particular emphasis on the weld that you added to the system (the weld significantly deteriorates the fatigue results) Third, the rear fork is the most strenuous area in the bicycle frame near the wheel mount Fourthly, to simplify your task, it would be best to see what the forks with disc brakes look like and try to apply this solution to your frame. Then the probability of an error would be lower. Fifth. Without knowing how to build a bicycle frame without FEM analysis, you will not be able to do it. I wish you a lot of success and still enjoy watching your films.
"Every bike is a good time." I think that needs to be the slogan right after "Ride reasonably-priced bikes." Well said.
I support this!
I’ve got a design idea brewing in my head for this now
I agree. Very wise words Mr. Spindatt
I was thinking the same
Haha. I was just about to type the same thing!
Every bike is a good time.
New sticker slogan!
I'm crying inside for the Guru. Sure it was weird and ugly (like many of us), but it was fully functional (unlike many of us). What is done is done and unless you make a "how to repair the frame you cut a chunk out of" video later, it's goodbye.
was it damaged before?
''like many of us'' ahaha
RIP GURU
This GT build has me so excited!
You and me both
Great video. Love the justification in confirming the gt frame was strong enough to take disc brake. Then over engineering and putting brace in. Thats a true engineer. 👍
never know when you might go for a wheel lock up and just find some surprise traction! haha
For the most part, I enjoy your content quite a bit, but this video is fantastic. “Hey I know stuff and can articulate it without being a prick, and actually have a personality” is a dying art. 👏
LOL i didn't know what direction this comment was going to go in when i saw only the preview. Thank you!
You just made your triple triangle GT into a quadruple triangle..😂
lol i like this name
It’s like I walked into the wrong class in school for a moment there with all the calculations etc haha! But good stuff! And love the red bartape!
I'm hooked. This one is super cool. And a tear for the Guru ...that it got bent up in the first place. Can't argue that its a good donar.
Always a privilege to see you get all the little stuff done while answering our questions 😁👍
Always!
I...what...you...what....ARE YOU INSANE????!!!! The Guru, the poor freakin' Guru - what the hell did it do to you???? I just....*cries*
I cut one of its shin's out haha
Hah! That’s funny, but I’ve had another video, similar to your (but with no talking). In that video I’ve shown how I’ve welded and reinforced a 2014 GT Avalanche caliper mount and the tube, that it sits on, on the frame. It was destroyed previously and we’ve reinforced it with style. Please, check out the video. It would be a big pleasure to know your opinion on what we’ve done with that frame. So, please, consider leaving a comment, telling us what would you’ve done differently. Thank you.😎
Thanks for answering my question about carbon frames, keep up the awesome work with the Channel, I really like the format of the q&a video.
That was a very satisfying explanation. Thank you for the nerd out!
“Needed the steel” 😂 😂 😂
Had to have it haha
Rip the guru? 😰😥
Live on with cooler builds Guru!
I do exactly this: 1:57 for every ride these days. And I can't get enough of under-biking now. Then again I live only a few 3 miles from a mtb park and it would suck to ride squish 2.3s paved for much longer than that without airing up and down.
Oh my! Can't believe that you will actually answer my question! Thanks for the wonderful advice!
To the person who asked a question about commuting with no shower, baby wipes and deodorant. That's it. If you'll be extra sweaty, add a towel to the equation.
Leave a change of clothes at the office too
A change of t-shirt really helps
I thought it was implied, but definitely don't ride in whatever you are working in.
Bike to work,
Get nekid,
Baby wipe yo bad self,
Pit stick,
Work clothes,
Start the rat race.
Johnnynerdout on UA-cam can help with your sweat problem.
You can build a super ebike for much less than £2000...
This stuff will change the way people commute.
Thanks for answering my question. Love the analysis.
yes totally! what year engineering are you in now?
I'm a 3rd year in Rhode island, US. I came from the competitive sailing world but am quickly becoming a convert and spending more time on my bike.
I enjoyed the analysis, even if it wasn't necessary. Carry on.
Love the bikes and the Math! Stoked for this build.
I have the same bike and I think you’re showing me exactly what I wanna do with it!!
I could watch you answer questions for 2 hours!
i don't think i could handle the edit haha
Supervillain shit killing the Guru all nonchalant in front of us all.
YYYOOOOOO NO WAY!!! Sweet action!!
Did he just cut a chunk off of the Guru?!? Please explain the choice of that tube doner!
I'm welding a iso tab on my rigid fork on my 99 Diamondback outlook cause I got a. Bafang disc brake hub motor with rim and new schwalbe marathon tire for like 40 bucks, with a tektro caliper and rotor. Fork is thick like the black one on the GT, so I'm sure it will be fine. Welding a tab on is cheaper than lacing a new Rim brake rim on for me
re: commuting without a shower: I used to (when I went to an office instead of my basement) use these big individually-wrapped anti-bacterial wet wipes designed for a quick body wipe down. There are a lot of brands.
Anyone else here REALLY enjoy patching tubes? I got a couple that are more patches than tubes...one of them close to 20 years old and still going strong :)
Finally i see you use your degree to justify an idea, i usually use my engineering degree to check ideas that look like bad ideas at first
Lol i generally don't show any of it, but if im not sure i will justify with some educated research.
Most people suspect things are much weaker than they actually are.. but I was taught to work with a safety factor of around 5.
@@Spindatt i get it, depending on the application you choose safety factors if people knew how lean planes and weight sensitive structures are calculated they wouldn’t use them.
Someone: that bike doesn't look safe
Spindatt: hold my scientific calculator
Someone: I don't believe you
@@Spindatt someone is starting to sound like a flat earther.
Where did you get the disc brake mount ?
I look forward to the GT vids , new builds are fun . Would you ever build your own frame ? Most of the bikes I owned were re builds I did myself , I always wanted to build my own frame , build my own bike the way I want it .
I’ll build my own frames in the warehouse someday. Would like to learn tig welding first as well haha
Couldn't have done any better. Now to match the paint.
Can we have the 2 hours of questions anyways?
wow the guru really!!!!
and I'll do it again!
Oh! Nova Scotia! Have you been to Oak Island?
No i haven't, but I used to organize the cranes moving in and out of there.
@@Spindatt well that's pretty badass! 🍻
If you would'e cut the seat stay on the other side you could've welded back in a splitter to turn the Guru into a belt drive single speed!
Tubes are pinched and formed for cassette clearance over there so it was the non drive side tube i had my eyes on haha
"A grinder and paint makes me the welder I ain't." - AvE
My face went from 😊 to 😱 when you cut that peace off the Guru... Why!?!?
had to be done
I’m currently taking a week long welding class, what type of welding are you doing on that?
Flux core Mig
did you just kill the guru? :o
It was dead long before I got it. Never mentioned it really but the rear triangle was absurdly twisted. Tire always rubbing unless I placed the wheel “just so” and the brake always tweaked to the right.
Yes; we could have tried to straighten it. Though, it’s steel is better used in other places.
@@Spindatt damn, can't imagine the annoyance after all that work on it
I think the resulting projects it’ll donate it’s life to will be cooler and worth it anyway haha
that purple exotic frame gets my hormones rollin
How's the tire setup on the Moab?
Good. Just need to ride it
so.. here's the thing// the brakes on the fork already deal with them forces. literally NBD.. my GF dead stopped her indie 4 luckily with a puffed up handlebar bag... the fork bent the rim bent.. I had 203mm rotors and I'm pretty confident it was all the impact forces.. also I was a welder as a teen in the 90s.. and I'm AMT-S composite structures.. tech as you are.. but helped my brother study for his engineering civil.. replaced with surly big dummy fork again with 203mm rotor... now welding a 96 tange rocky mountain and getting amped up with videos of the same sort... yeah I'll reinforce the frame but the fork...add the mount IS the reinforcement.. people hop and do trials with these forks.
I’m currently doing the same conversion. What filler wire did you use? Shielding gas? Is the GT chromoly?
Mig weld flux core, only the seat tube is chromoly!
Does it need to be heat treated ?
No sir. Generally more of a real problem for aluminum
You know there is a way to remove the shift paddle from your right shifter on the crux. It's pretty easy and only takes a few minutes.
Yessss I know haha, but who knows maybe Front derailleurs will come back in vogue AND if I take it out.. I’ll lose it for sure
You mention how people are scared of used carbon. Is my fear irrational about my aluminum road bike breaking. Do you know if it’s actually common for frame failure to happen with a pretty lightweight aluminum. How long have u seen aluminum last for?
I've seen failures in all materials after years of abuse, though i would say my tricross will last my lifetime.. as long as I don't have a reeeeeally bad crash with it
My motorcycle wheels are cheaper than some of my bicycle wheels. 😂
that's a t h i c c app dock
Thanks for answering man, shame you’re like 4000 miles away, got a spare trials bike you could borrow. If you’re every coming to South Wales let me know and I’ll arrange some riding 👍
some day, when the funds are there and the world is open. I will be walking aimlessly around south wales sending you IG messages hoping you are free that day to do just that.
@@Spindatt that’d be awesome! Where I am is a really handy spot, in between Afan and bike park Wales
So you're saying if I dont subscribe you'll put out 2 hours of content... hmmmm
WTF THE GURUUUUUU
The grinder has spoken!
I prefer touring, more versatile. Just like my retro Bridgestone RB-T.
Love your videos. But just for a goof I started watching them at .25x speed and it becomes.like an art film. Lol
No shower at work, take a wash cloth. Wet it. Wipe. Or take adult wipees. Simple. Mostly effective.
Do you really really think red and pink look good toghether on one bike?
Future bike frame builder?
for myself only
It hurt hearing you say that it would take 450 lbs to go past the modulus of elasticity. Clearly you meant the yield point.
Dammit
Qwestion.
And I ask this with all due respect,
Do you talk like you are on camera when the camera is off?
Has it become engrained in you?
I sometimes mumble, I am told, when I am werking on something I am completely wrapped up in.
HR.
No its more the other way around I think. Anyone i've met, and eventually become friends with, have always come back after watching the channel saying: wow, it's literally just you but on camera. hahaha
When and why did you loose your hair?
Still in the process of losing it! I'd like for it to hurry up if it could haha
I watched but did I listen?
Confused typing
Pound force is the most illogical unit just after psi...
SI is the only truth :)
So we’re just turfing the Guru now and not gonna talk about it?!?
We gon talk about it
Yay. You cut the posts off!
of course! can't leave those on there
Noooooo. Not the Guru!!! Dang...
its parts are better served elsewhere!
Ünderbiked and over engineered! New channel slogan.
I was told there would be no math
Hi. Please prepare one more video and make it clear that this calculator was a big joke!
open to your rebuttal. Engineering quarrels are the back bone of things like F1 and I like that
@@Spindatt Here you are:
You made a lot of mistakes while analyzing this task.
First of all, you assumed only the braking load case for the calculations, and meanwhile you should calculate the resultant force from several load cases that may occur together - e.g. braking plus the load from hitting an obstacle (hole, stone, curbstone) - of course taking into account the weight of the cyclist and the bicycle. Moreover, you should consider what the distribution of forces will look like during a sudden turn.
Second, the static load case will not be a critical load case at all. The worst thing you should take into account is the fatigue , with particular emphasis on the weld that you added to the system (the weld significantly deteriorates the fatigue results)
Third, the rear fork is the most strenuous area in the bicycle frame near the wheel mount
Fourthly, to simplify your task, it would be best to see what the forks with disc brakes look like and try to apply this solution to your frame. Then the probability of an error would be lower.
Fifth. Without knowing how to build a bicycle frame without FEM analysis, you will not be able to do it.
I wish you a lot of success and still enjoy watching your films.
Mmmmmmm.....physics....
_hehehe, mafs..._