Literally bought my Mongoose BMX at a thrift store for about $20 brakes were perfectly fine everything on a bike was perfectly fine except for the tire tubes busted the one in the back while riding home
A long time ago my parents bought a Walmart bike (walamart bikes were actually reliable with steel frames) fast forward 10-15 years it's still in great shape (no more shifting tho)
@@ThroughGrace88 Every failure can either be traced back to design specifications, construction process standards, or not adhering to them. There are so many variables and misunderstandings in ‘composite’ construction design, materials, and processes, that I see failures more often now than 50 years ago when carbon reinforcement was in its infancy.
not like carbon. aluminum will bend before it fails and even when it does your frame doesn't snap in half. titanium or aluminum frames bars and cranks in carbon is all that I'll ride.
I have 2022 trek slash carbonframe. Did some big jumps and im 6.8 ft 100kg. Never had any issues. I think it depends what brand and what cost. But anything can break
I’m the same height and can assure you that your bike is too small for you. Only bikes that fit me are canyon and a couple others, nothing trek makes fits me :-/
@@KillersFromTheWest That is just not true. I got 2022 carbon frame at size XL and 29 wheels. I saw the bike only in videos and pictures. When my bike arrived at local bike shop i went in thinking it wont fit me because my previous bike was XXL and thought XL would be small. When i got a first glance on the bike i was absolutely shocked how massive it was. Its an absolute tank in size XL. Im 6,8 and around 100 kg in muscular shape and long legs and this bike fits me perfectly. I would say i could have been atleast 7,2 and still do fine on this bike. You probably dont have slash or see videos where most people buy medium or large size. The XL size of Trek is a complete giant. Its bigger than my previous XXL Marlin 8. My friend has XL Yt decoy core 4 ebike and Yeti enduro bike and they are tiny compared to Trek. One of the reasons i actually prefer Trek is that their XL size is massive. In have also seen just last week Trek Fuel ex new generation in newly opened bikeshop at my local place in size XL and they are also absolutely massive.
You must have a long torso and short arms and legs, cuz I can’t fit onto any XL. I wanted to get a Trek Madone but it was just too damn small. If you’re in the market for a new bike, Canyon’s XXL fits so well for us tall freaks
Also, good to know your bike fits you, but that’s wild. I had a 2020 Trek MTB in XL and I had to sell it cuz it was just too small, and by a big margin. Which bike do you have?
@@KillersFromTheWest Trek Madone is not a mountainbike. I dont have have short arms or torso. Everything is normal size. Just happened to be tall. I cant speak for the roadbikes, because i have not had any Trek roadbike. Only mountain.I own 2022 Trek Slash Xt built
@@andrewblakesley4202 this is sort of true. Heavy rust or crappy welds will destroy a steel bike pretty quickly. The thing about steel bikes is that cheap ones are 3 times heavier than they need to be which makes them really tough. I love a good steel frame for their supple ride quality, but you can get that exact same ride in high end bikes made from steel, chromalloy, carbon, aluminum, titanium, wood, bamboo, and composites. It's more about the design and engineering and the quality of the materials and manufacturing than it is about which material you chose. Obviously some materials are objectively better at a specific task than others, but realistically if you know the properties of a material you can manipulate it to get the ride feel you want while also getting the strength you need. The tradeoffs usually just come down to money.
Carbon fiber is indeed strong but not on torsion. When you twist it or put ti much pressure it will delaminate the layers causing spider webs then cracking
I recall watching a carbon fiber expert saying that the extremely high quality of the resin or epoxy is what makes F1 carbon fiber parts really strong compared to bike parts.
Exactly the issue. Hits jump and mid-air freak out landing with both brakes squeezed and off balance. The other guys could have just crashed themselves and just hadn't gotten off in time. Benefit of the doubt...
I'm a former composites design and structures stress engineer for Airbus aircraft. While carbon is amazing, it has its drawbacks. It is extremely sensitive to manufacturing process and in-use impacts. A minor variance in process can result in massive strength reduction. An impact on a frame may show a tiny surface blemish, but the delamination underneath is 100x the size. Only NDT can show you. Carbon is great, but you are literally riding the unknown after it is hit by anything.
@@r3volt97 for bikes, not so much. Usually they're painted anyway. Aircraft skin is difficult including paint and copper foil for lightning strikes haha. Hot cold temps CF does great. It's impact that are a problem on "weight optimized" structures. Just know if you whack it you crack it. Just because the paint is good doesn't mean the next jump will be.
Good old steel frames. It takes some welding skills and some sandpaper to get you back in saddle. And maybe a 3d printed replacement spine if you did a proper job.
@@markilleen4027 Usually, yes, but not always. I managed to rip the entire bottom bracket off my aluminium MTB. It was not dented or bent. Literally ripped away from the frame, tearing right through the aluminium. Granted, the bike was old, but you don’t expect that to happen. I have never had anything like that happen on any of the three carbon bikes I have owned.
@@markilleen4027it will also snap. I snapped an aluminum downtube in half from trying to cross a street before cars came.. pulled on my bars while pushing on the pedals too hard. Also, there are videos on RU-vid testing aluminum vs carbon failure on bikes and carbon is stronger.
@@tonyb9735 carbon is stronger when it's in perfect condition, aluminum will still perform when damaged and can be repaired, don't have any experience with bicycles but i do weld up dirt bike frames and engine cases swing arms etc, take a bashplate for example, carbon ones get destroyed were they feel like mushy cardboard, were an aluminum bashplate would be scratched and dented, but besides that they will probably out last the bike it's self, if you look at the underneath of any used dirt bike, the frame will be all dented and they could be like that for decades and be fine, carbon just wouldn't be able to handle that
@@markilleen4027 Sure, as with any material, you have to use carbon to its strengths, and in suitable applications. Carbon parts, perhaps more so than aluminium, are a compromise between weight and strength, and that’s carefully controlled in the layout of the carbon. A lot of their durability then comes down to how well the parts are designed, or rather, to the compromises the designer settled upon. There's no reason that carbon frames can't last. I'm running a Viner carbon MTB frame from 2011, and it's still going strong, and my 2015 Cube (which is the bike I take to bike parks) is also doing just fine. Granted, I'm no hero doing massive jumps, but I've had my share of falls and the bikes have been just fine.
Every frame should have a lifetime warranty. We as the MTB community have come to a point where it is seen as "normal" that frames and other components break. This should be totally inacceptable because such a failure can lead to serious injury or death. The bike industry is one of the industries who care the least about the safety of their customers. Most engineers who work in the bike industry ended there because they did not get jobs in other industries. That also explains why the imo kindergarten-level bike tech is full of stupid designs & "standards", creaking, seizing and prematurely wearing and failing components, inadequate sealing where it is imporant, misalignment and bad tolerances that cause breaking damper shafts etc. etc.
Nah it doesn't work like that. I can attest 😂 Boutique brands aren't better at warranting, carbon wheels often have a no questions asked lifetime warranty but frames are often warrantied only against defects for a period of a year to five...
My experience has been that the "lifetime warranty" that most manufacturers offer is mostly a sham. By the time you've jumped through the hoops, dealt with multiple trips to the shop, proved you didn't do anything wrong, never made any innocuous frame mod like drilling out a brake stop, and then waited for months for your replacement frame, you've missed the entire riding season and probably had to buy a new bike in the meantime.
Well for trail/endure sure; but doing XC on aluminium frames is not a good idea; unless you are doing it purely for fun and not for racing/performance.
In Brazil, carbon bikes cost 50 to 300% more expensive than aluminum bikes with similar components. Aluminum bikes have a 5-year warranty or even a lifetime warranty depending on the manufacturer. Carbon bikes only have a 2-year warranty for the frame. And aluminum bikes allow you to install a support foot, like there is on motorcycles, carbon bikes you have to leave them lying on the ground with the possibility of scratching the paint and the handle. My MTB will always be made of aluminum, even if it weighs 3kg more.
@@MonsterChuck Originally MTBs weren't made for this, I agree, but today MTBs are also used on urban roads and also (in my case) to climb steep streets and mountains for physical effort. I congratulate those who prefer MTBs for downhill, but that's not my goal. And returning to the main subject, both aluminum bikes and carbon bikes can suffer from cracks in the frame, neither is indestructible. I respect those who like carbon frames and I could even buy a bike like that, but it's not a financial issue, for me the preference for an aluminum frame is a personal taste and I'm very satisfied with my HardTail.
Weird in Brazil...because I would say that its the other way around. You get a couple of years on an aluminium frage and a länger warranty on carbon. So, Brazils seems to be dumb.😂
WTF you talking about...dude clearly has the skills to clear that jump and you can't see. He cleared the jump and there are 2 people off bike maybe 20ft from where he landed. He hit the brake which made him slide out and those forces cracked the carbon.
@@saltyp123Has nothing to do with the brake. The landing was leaning towards the right, he leaned towards the left, including the front wheel too. That will automatically lead to a crash in any scenario.
@@EricPlayZ132 You all are the reason eye witness testimony is not reliable. I'm sure dude has ridden this trail numerous times...I'm going to go with the people off bike less than 20 feet from the landing.
@@saltyp123 Sorry if I was not clear. I was talking about the guy recording the incident. The one in front indeed pushed the back brake too hard, as far as I can see in the video.
Iv been looking at a procaliber waiting to pull the trigger so happy i saw thanks for saveing me couple grand if i did buy id have this video in my head every ride
I have a steel bike and titanium. And I prefer my titanium frame, but it could be the that the titanium frame fits widers tyres and there for more comfortable. It's easier to keep a titanium frame looking nice though as the there is not paint, so it doesn't chip, and little marks can be buffed out.
@@jamesswift5545totally agree, dave Yates frames some of the best hard tails built- I think Columbus and Reynolds tubing was what he used ( double or triple butted not sure ), never owned one just rode a friends , they were so light and responsive.
Steel doesn't Break due to material fatigue over time like aluminium, it obvious doesn't delaminate like carbon. The material has more flex for comfort then aluminium and is almost indestructible. I like carbon more to ride as road bike and mountainbike but the amount of abuse a steel bike can take without ever to worry it lets you down is a big advantage.
All I know is that in the last gravel race I was in there were several who had to drop out for mechanical failures. But there was only one rider who had to quit because his frame snapped and he was riding carbon.
It's not a very large sample set though, is it? I went to Slough on Friday, it rained. Are we to assume that it is more likely to rain in Slough on Fridays?
I rode a carbon bike for years (Rocky Mountain Altitude) until a crack began to develop on the downtube. Took it to a reputable bike shop and they said it was fine to ride. I slammed it on a rock and the crack got bigger to the point it wasn’t safe to ride and would cost more than the frame’s worth to repair it. After that, I’m strictly on alloy frames.
@@philippmuller7292 I'm not referring to the audible snap but to the way he landed with his hands forward on the ground and then I just followed this concept called talking shit which in this case is similar to irony which it isn't really but I don't know how to call this making up foolytrash technique 👋😉
As someone who worked at Foes Racing for awhile, we had a lot of data on which materials were the 'best' for mountain bike frames. And this is the reason that Foes never ventured into other more 'marketable' materials other than aluminum. Aluminum is the great compromise. It is strong, light and repairable in most cases, as breaks were mostly around existing joints, and not in the middle of a tube, like in this video. Carbon fiber is light and strong, but is labor intensive to make, expensive, will break without warning, and it is not repairable. Aluminum usually starts failure slowly with a small crack and develops based on wear and tear, which means that if you are routinely inpecting your frame (and you should), you'll catch any failure way before it becomes catastrophic and dangerous. IMO, stick with aluminum, unless you have boatloads of expendable cash and are not running high miles & speeds over very brutal ground.
@@irfuel Foes is for bike passioned people, like Nicolaï and all the handmade frames. I'm not rich but I can afford it by a good money management. Today I've 13 MTB's frames and 1 tandem. That mean's that it is possible for everyone to buy a handmade frame.
I can envision a bolt-on aluminum part that would repair the break seen in this video. Looking like how the handle-bar is clamped on. Even a possible trail-fix utilizing said part.
I have never seen a repaired aluminum frame in person. Steel and carbon repairs are much more common, and have actually had frames of both materials repaired myself.
carbon cracks, aluminium bends before cracking, so it is mostly visual if you have a damaged frame, i have been working with a lot of carbon, believe me, aluminium is wayy safer
It's due to the delta between yield stress and ultimate (fracture) stress allowables. Aluminium has about a 10,000psi margin between when it starts to bend (yield) and when it breaks (ultimate). The delta in carbon fiber is aboout 0psi...meaning it does not really have a yield strength. It will hold it's maximum load without deforming and if you exceed that it just fractures. There is no warning.
In my opinion is much safer to use steel, aluminum, and titanium for MTB since you guys are often doing all those dangerous stunts, Carbon Fiber is too fragile for that and it only belongs in a Roadbike category and even in the road cycling community I am seeing a bunch of Carbon Fiber failing in the middle of the run and they are from known brands. I will choose Aluminum over Carbon Fiber all day for safety, I don't care about the weight. I would pick a 10kg aluminum road bike over a 7kg Carbon Fiber. Safety comes first.
That’s not true at all. Carbon is plenty tough. It just takes more care and you can buy bs carbon bikes. aluminum and steel snap more often than people would like to believe.
Same. My last two bikes have been full carbon, before that I had three Kleins: once I went to bunny hop a pothole in the middle of the road and the stem (one piece aluminium bar/stem) broke, the handlebars came off in my hands.
@@bobsnabby2298 all bike shop bikes. Aluminum bikes in question were around $1500. Which is getting pretty close to top of the line in terms of aluminum bikes.
It's stronger but doesn't handle impacts as well at the thicknesses used. If you make a carbon frame thick enough that it's as heavy as a comparable aluminum, you would be correct, but that's almost never the case because you are paying for the light weight.
There's so many grades of carbon fiber, Different weaves, 3 under, 2 over, 1 for 1, 4 on 2. Then you cut them to make, match, mirror, + 45° and -45° and 90° and 0°. And then there is tooling carbon fiber, That shit is indestructible. But it's like$1,000/ foot. I was a lament technician for Courtaulds aerospace in my younger years, three satellites flying circles around us right now, Carbon fiber sucks.
@@willgreenfield baby blue? grey blue? blue of some sort. I didn't even realise the bike in front crashed :D Just watched it again and heard the noise. I withdraw my objection m'lud.
Compare the two. Carbon and aluminum side by side. Carbon is the stronger of the two. Modern carbon that is, also carbon frames can be repaired. Dent or bend and aluminum frame and it’s done for.
Glass and epoxy have different coefficients of thermal expansion... so failure is inevitable. Carbon is great, strong and light, but it's a time limited deal.
@@snowpz Can get a very good bike for far less than $10k BUT just like any hobby, shit gets expensive and if you don't ride you would never know and make comments like yours.
I raced downhill at a high level on a carbon frame, bars, cranks, and rims for a long time. That frame was damaged previously, or had a defect from manufacturing. I’ve crashed hard enough to see my collar bone irl, bike is 100% fine.
Yeah for real, if any of these guy have seen the santa cruz carbon vs aluminum video pinkbike made, they would realize its not even close to true, and those were carbon bikes 7 years ago, carbon is much lighter so they can be overbuilt so much more than aluminum frames.
My 1991 Kestrel carbon frame is perfectly fine after thousands of hard miles and probably at least 100 crashes. My "US Built" aluminum frame Ellsworth cost more and broke after 2.5 seasons. They wouldn't stand behind the warranty.
Been there on a trek. Warrantee was denied. They blamed rocks chipping my down tube. I have had a number of supposedly reputable brand wheels fail as well. Carbon gets spongy. If you try to swap it out before it breaks they wont, and when you finally break it they blame it little dings. The people get mad at us saying carbon is fragile dont send it.
I have one with a carbon frame and 3 with aluminum frames. The only difference i can tell between them is when a rock flies up and hits the down tube. They sound different. I just ride and race cross country so my bikes never really take hard hits. Besides, i only weigh 150lbs. Not much ass for a frame to have to hold up. 😂
