Update from the warranty department - Zero ERA cranks warrantied so far through Fanatik. - Dan P.
@teddydark3601
Жыл бұрын
And now compare to aluminium cranks and than we can really see if it is worth it !
@veganpotterthevegan
Жыл бұрын
Modern hollowtech cranks will fail too but there are still tons of people that aren't aware of how terrible they are
@joules2936
Жыл бұрын
@@veganpotterthevegan hollotech cranks are not terrible. Yes there have been failures, but how many thousands of cranks have Shimano made, with the vast majority being fine.
@joules2936
Жыл бұрын
Some Carbon cranks will be crap, some good. Same applies with Alu cranks. Material doesn’t matter, it’s all in the design and manufacturing.
@The_Real_JN
Жыл бұрын
@Joules very true, plus I feel like there could be more discrepancies in manufacturing carbon cranks I.e. voids or internal delamination
@veganpotterthevegan
Жыл бұрын
@Joules the mass majority are barely ridden. And the failures are at a huge number. Definitely thousands.
@David..
Жыл бұрын
You should do this with Shimano Ultegra. Would be far easier as you’d just have to ride the cranks to see how they fail.
@christerohlsson9034
Жыл бұрын
Totally useless test doesn’t tell us anything
@machyne82
Жыл бұрын
You should have lifted the breaker bar. That would have simulated the downward pressure on the spinal like actually riding it
@JoshuaParks
Жыл бұрын
Yeah I don’t understand how this inward/outward pressure shows anything interesting. The problem comes from the crank hitting something in the ground in the direction of rotation. Here he’s torquing it orthogonally to the way these pedals are likely strongest. Since carbon fiber is directional it would likely be much, much harder to defeat them in the direction of their rotation
@asbaDoce
Жыл бұрын
Carbon is anisotropic so bending the crank both ways or in the direction opposite to the designed for load [as you did in most of the tests, ignoring you pushed the softer middle of the crank against the vise] is not only inconclusive but doesn't produce useful information. I have seen FEA for cranks and there's a massive dynamic twisting component on the piece. What you need is a setup that controls load and freq and get actual data.
@xm3ntal620
Жыл бұрын
Right on. Are you an engineer?
@kaltonian
Жыл бұрын
totally agree that's one of the reasons i say what a waste...even a load teat would reveal more
@asbaDoce
Жыл бұрын
@@xm3ntal620 It depends... Why?
@xm3ntal620
Жыл бұрын
@@asbaDoce you sound like you know what you're talking about. I work in aviation alongside many engineers.
@FanatikBikeCo
Жыл бұрын
Indeed. I primarily wanted to get the threaded pedal inserts out and see what the differences were, the breaker bar and all the rest was just a more entertaining way to get them out than just cutting them open. In the future if we find ourselves doing stress tests on things I'll try and be more thorough about how we do so. Cheers, Dan P.
@hugabuga96
Жыл бұрын
Cool vid! Next time break them by adding weights to the tip of the bar so you know the difference in failure loads between cranks. Mark the bar and always add them in the same location so the loads are comparable. Keep them coming!
@Themanydeaths
Жыл бұрын
i was thinking the same thing. some thing like that project farm guy sets up with messurement tools and break it in a way that riders would break them. hell he said it himself not a perfect test. dont just break expensive shit do it with purpose. did not finish vid.
@thealzp
Жыл бұрын
Nice Job ! Why don't you measure applied force ?
@nathanbunney705
Жыл бұрын
Shouldn’t the crank be put in the vice and the pedal spindle be leaved against to really simulate the stress. It just seams your stressing it the wrong way at the start.
@Sunday_Jazz
Жыл бұрын
This does not replicate the forces on a bike. Pointless but entertaining.
@Steven-Sea_gull
Жыл бұрын
Completely pointless waste of cranks you didn't have any control and 1 crank broke on the vice where it was resting on when you applied force . All you proved was you could destroy a crank in a way it was never designed to take load wow 🤔
@axels.7166
Жыл бұрын
Very interesting and also incredible test! Thank you for showing that. I would also love to see how a aluminium crank would be react. For example a Shimano XT…
@sepg5084
Жыл бұрын
I don't see them measure how much force it actually took to make the crank break, so i don't see how they'll compare the durability to aluminium cranks.
@femto505
Жыл бұрын
"incredible test!"?!?! We should get Project Farm for testing these items. These results are all subjective with no data or numbers to support these clams.
@TheSorrowedMan
Жыл бұрын
@@femto505 pointing at marketing wank on packaging: "...strongest, stiffest and most durable carbon cranks ever created..." *We're gonna test this!*
@michalwiktorow2188
Жыл бұрын
Wrong. It seems that you did two things wrong, you press like the pedal would bo inside the arm, not outside and worst - crank arm should NOT touch vice clamp - just pressure form pedal axle should be applied on the crank arm. You are breaking them against clamp dude! :)
@RichardCarruthers-o1r
11 ай бұрын
I fixed the loose insert problem: I've been using RF Next R cranks for a few years and had the loose insert problem twice over about 3k miles. Before I binned them in despair I had a go at re-fixing them into position with loctite. It worked a treat and I saved £350 replacement cost! I used loctite 290 (has good wicking properties but caution, its toxic according to the label) with a separate activator Loctite SF 7240. You need a fresh 2mm drill bit. Drill 2 holes through the carbon crank at 90' towards the centre of each side of the loose insert. 1 hole at 6 o'clock and 1 at 12 o'clock, drill until you see some aluminium swaf come out, blow out the hole with a track pump or similar as best as you can, warm up the insert a little with a hair drier to about 25 to 30Ć so the 290 flows well. Bring one drill holes up to 12 o'clock, put on protective gloves and drip the 290 into the drill hole. The 290 is very liquid and should wick into the to hole and find its way out the other drill hole. Give at a minute or 2 to run through, wipe off the excess and then use the activator. The inset should firm up within an hour or 2 and you can ride it after about 24hrs if all has gone well. I've been riding around on blue and easy red trails with my fixed cranks for over 1000 miles. I'm 84kg. I used this fix on the pedal insert and the crank arm axle insert. I check the cranks for any signs of cracking reglarly where I drilled but all is fine. Happy days.
@andrewpm2
Жыл бұрын
Should've had something to measure the amount of force until failure. Not exactly scientific but good FYI for viewers. Still good shit as usual thanks
@swecreations
Жыл бұрын
I do feel like the testing made here was very unscientific and makes it very hard to calculate the yield strength of these products. But from what I can see that long bar gave you around a 10-25x mechanical advantage, so these cranks seems to have held up to around 500-1000kg of force (each, you will most likely have two of these), so these will likely be very overbuilt for the requirements of normal conditions, far beyond what these will experience in the real world.
@saijapz16
Жыл бұрын
you are breaking it completely wrong
@seanlandsley1259
Жыл бұрын
Funny I have had 3 of them that always come loose at the axle insert and not at the pedal inserts. Could you cut that part open and see the differences. Thanks
@ShoppingBag
6 ай бұрын
I got my first Next-R in 2017 and had the drive-side crank pedal insert break free (spin freely) in 2018. RaceFace did me a solid with a warranty replacement crankset, but in 2019 that second Next-R crankset fractured torsionally on the drive-side crank in a fashion very similar to how the Next-R in this video cracked and broke. RaceFace has a one replacement warranty policy, however, so I just went back to aluminum Atlas cranks (like I've had on all my bikes and never broken.)
@colinwestbrook6811
Жыл бұрын
I’d love to see a cut or two through the axle inserts to see what the difference there is. I’ve had SixC and Next R failure at that upper insert. Similar approach as the pedal insert across all lines?
@to._can
Жыл бұрын
This was pretty amateur. To make this useful there needs to be force and deflection. Fixtures should be much stronger than test piece. In construction terms, nothing fresh here. Other manufacturers have similar or more robust methods. The failure of most pedal inserts in this type is interfacial fatigue. Will be interesting to see if new version changes this.
@rh32793us
Жыл бұрын
Ha! Why’d you spend all that time and energy breaking RaceFace cranks!? All you had to do was go ride them! Lol.
@jasongarcia7544
Жыл бұрын
Pointless exercise if theres no control or any actual torque readings to measure, just an extended bar isn’t really a true measurement device?! Why ft lbs or Nm do they actual break at?
@aaroncorrell8728
Жыл бұрын
Good video, but you exerted lateral forces. Not a fair/inclusive outcome tbh as a catastrophic case would exert vertically oriented forces.
@AlexSanchezMorales
Жыл бұрын
I think the fact you are testing is OK, but how do your measure the force you apply to the 1 meter lever? Does cranks are supposed/build to overcome that huge amount of side force?
@akjdhfkqwrhetkjanfvkkkresae
Жыл бұрын
I think the next R actually hit the vise, breaking where it touched the vise.
@jasonkroll2735
Жыл бұрын
Looks like sram pedal boss inserts .....seen them broken alot. .
@BLVBak
Жыл бұрын
The ratio between the force moment and the shear forces is very different in this test compared to ridding on a bike. The force moment is much less dominant when riding the bike compared to the test.
@dash0173
Жыл бұрын
@@cristianrdavid its obvious he's not a professional. it's obvious they're doing this with aboslutely zero experience and they NEVER claimed to have the most experience but it's still a cool way to somewhat put into perspective just how strong the cranks are. i've always known they're strong but i never once had an actual reference in my mind for how strong they were. you must be really unhappy with your life if you're finding a way to be so upset with these dudes
@santosgarcia801
Жыл бұрын
It is a good experiment, but if there is not a value like torque to really being able to compare, the experiment is meaningless because became subjective. If you go with the aluminum cranks, it would be better if you use a torque wrench to measure the force to break the crank. Thanks for sharing though.
@jensleerssen9603
Жыл бұрын
and apply the torque in direction of 50 / 50 loading, please.
@owenlattin4185
Жыл бұрын
I don't think this video was meant to be incredibly scientific
@Bored-G
Жыл бұрын
Your actually not going to put pressure same as how you test it, it should sideways.. Raceface did not design it the way you tested it.
@kiliBrtoiP
Жыл бұрын
and without measured force "required" to destroy these cranks is pointlessssssssss. a loose insert issue can be caused by galvanic corrosion
@sunday_mx
Жыл бұрын
No measurements, strength force applied? Only a guy breaking things
@portox777
Жыл бұрын
This is interresting but i think that the force was not applied correctly, if you did this on a trail you wouldnt be worried about the cranks for sure
@filipkryspin8726
Жыл бұрын
The reason for insert failure on those cranks would be galvanic corrosion. As with any corrosion that develops over time especially when riding in wet conditions. That beeing said the new inserts have much more surfrace area to contact the carbon. Therefore they will last much much longer. Great content btw. !
@FanatikBikeCo
Жыл бұрын
Thanks for the insight! Glad you enjoyed the vid. Cheers, Dan at Fanatik
@CM9999999999
Жыл бұрын
Given that the nextR snapped in the middle then the inserts were strong enough
@Jacob99174
Жыл бұрын
One of the most informative vids you guys have made Also, by far the most adverts inserted in any of your vids as well. Wow!
@hectorhector737
Жыл бұрын
handle bars please 25.4 , 31.8 and 35 what breaks easily:)
@JesusRescuesUs3-16
Жыл бұрын
Great review, as you mentioned unrealistic to actually riding failure. It was worth seeing you point on the insert failure. I had to have my NextR warranted for a circular crack on the drive side arm, from what I’m told is the injector point.
@alenjovanovic-verbanac8053
Жыл бұрын
05:45 its a bad test, crank snaps because is forced against the vice.... you should put a pipe in the vice so it is taller than the vice, and then insert the bolt of the pedal in that pipe and then test..
@alenjovanovic-verbanac8053
Жыл бұрын
It will also snap but in a different place
@endursa
Жыл бұрын
nice destructive comparison :) Also are those @MelonSunglasses Trail "safety" glasses :D ?
@userthor7386
Жыл бұрын
Hmmm... Why not put the stress test in the direction of which the crank is designed to absorb it? It must be designe to Flex on the length of the crankarm and not across it...
@wzpu3283
Жыл бұрын
I agree. This is kind of like testing various ropes under compression forces instead of tension. Which is, of course, useless.
@wiciekus
Жыл бұрын
you can afford better vise for these cranks.
@julianw5692
Жыл бұрын
So in conclusion, to make a stronger carbon fiber crank, you need to use metal inside. 😂
@Gallardo6669
Жыл бұрын
Cool video, unfortunately not scientific
@peterlang5047
Жыл бұрын
How to make carbon stronger: put more metal in it
@john_john_john
Жыл бұрын
11:05 not me, but a friend of mine used to work on a company that sold office supplies (and eventually branched to a lot of unrelated retail). A very, very common practise on that company, and I would bet on any industry, would be to buy stuff from their competitors just to take apart, destroy, cut in half etc, and see what they're doing. So that corporate mumbo jumbo doesn't protect Raceface's business secrets from their competitors, since they'll absolutely do what you're doing on this video anyway.
@wzpu3283
Жыл бұрын
Thank you for sharing. I think you've given a long definition of 'reverse engineering' which is common practice, like you said.
@joshuamaffly9649
Жыл бұрын
Another way to get your pedal inserts to separate from the carbon Next cranks is to ride them for more than 6 months. Works every time?
@ScoobyDo2009
Жыл бұрын
OK. Now compare to a set of eeWings!
@nick37781
Жыл бұрын
This test makes no sense what so ever
@johndef5075
Жыл бұрын
Berm Peak did a test where he was dropping a kettle ball onto fork lower legs. Didnt quite understand that either😅
@BigBeezyBtown
Жыл бұрын
Thanks for breaking all these for us. The only thing is I wish there was a gauge used so we could see how many pounds of force it took to take each one to their breaking points. I'd love to switch to these but I'm 280+lbs and produce a lot of torque.
@smooothyyy
Жыл бұрын
Just grab yourself an alloy set of raceface cranks and be happy. they´re amazing
@FanatikBikeCo
Жыл бұрын
They are!
@TeamCykelhold
Жыл бұрын
pretty cool! It would have been even cooler if you had measured the force required to break it. I also wish they made them with 24mm spindles so you don't have these bearings in the frame with so tiny balls that wear out much faster.
@kaltonian
Жыл бұрын
what a waste man. ....buy it see why
@evanm.2300
Жыл бұрын
The second crand was wayyy to suppored by the vise....DO IT AGAIN RIGHT LOL
@pedtrog6443
Жыл бұрын
Setting fire to it was a good suggestion to get the insert out intact.
@ericmosher6969
Жыл бұрын
I'm just here for the dog
@PowerrangerHC
Жыл бұрын
I would like to how alloy cranks and maybe titanium cranks compete against the new era cranks
@manitolas
Жыл бұрын
Impressive strength of carbon here🤔🤟
@chrisprysok7634
Жыл бұрын
Nice. Hope 50k views pays for the parts you had to break to get answers. I have next sl on an enduro bike ( availability at time) I'm totally happy they are tough and light.
@martinschon3098
Жыл бұрын
In my opinion this test doesn't give us a lot of information. You just apply a random bending moment to the crank. Which I can imagine isn't the main/only force/moment it will see during riding. It would be more interesting to figure out the load case during which the crank would fail and set up a teststand for applying this load more accurately. The video is mostly about destroying inserts.
@adamcvanwinkle
Жыл бұрын
Dude this was genuinely fascinating
@yumyumhungry
Ай бұрын
I had a NEXT SL crank delaminate on me during the Tour Divide. It's more of a slow wear over thousands of miles rather than one impact that does it. Hopefully this Era crank fixes that...I wanted to go with shorter cranks anyways so will give them a go. This video was super helpful to let me know what they actually changed.
@gpa1978
Жыл бұрын
best test ever
@slavkingsxr
Жыл бұрын
Excuse me, but don't you think that the direction of application of the load is not quite right? After all, the carbon is placed in accordance with the direction of the main pressure. You don't press the pedal like you do with this lever.
@jorgesantos8509
5 ай бұрын
my 2016 yt capra came with the sixc cranks and both sides failled. the pedals inserts become loosed from the carbon...
@123dwd
Жыл бұрын
ya know what lasts a long time, my M785's from 2012 (awesome video though, thanks)
@rayF4rio
Жыл бұрын
There is a rule in safety: If you have to use a "breaker bar", you doing something you shouldn't be doing. 😂😂
@jamble7k
Жыл бұрын
sram dub cranks say hello
@dustinbjohnson
Жыл бұрын
You guys should do this video with aluminum cranks. Be curious how much force it takes to bend alloy vs cracking carbon.
@horrovac
Жыл бұрын
You don't cut like that with a hand saw. You should hold the grip with your dominant hand and the front end with the other hand. That way you can control the down pressure as well, while using the strength of both your arms. The workpiece should be fixed at elbow-height (which is the case here), so in the centre point of the sawing movement your upper arms are oriented vertically, and your lower arms are oriented horizontally. Twist your upper body towards the saw as necessary to keep your upper arms parallel, that way you can guide the saw with the highest precision. If the saw blade is dull, or if you are cutting through a long piece you can rock the saw slightly to give it more "bite" and clear the chips better, but it should be deliberate movement, not due to the wrong posture. The same principle goes for other metalworking tools like files etc.
@realnutteruk1
Жыл бұрын
Fun, but pretty meaningless without numbers, and without comparison to alloy cranks....
@dand3975
Жыл бұрын
Those carbon cranks would be great on road bikes, but for off road might be best to stick with aluminum. Can't imagine ever bending or breaking a aluminum Shimano crank arm.
@grantmcgee1013
Жыл бұрын
Cool video abs nice slomo shots. It would be nice if you guys had some sort of force transducer or even torque wrench to see what kind of force you are applying. Merry holidays.
@dazza9360
Жыл бұрын
Dude you need to use a load cell or measured weight on the end otherwise the data is irrelevant & unrepeatable.
@rvsec6085
Жыл бұрын
suggestion for the procedure you are doing, add units. use equipment with measurements for you to really identify the difference. Thank me later. of you can send me some Bike stuffs though I prefer road bike.
@martin09091989
Жыл бұрын
IDGAF about carbon on bikes! The waight saving is not worth the fragility and cost, at least in my opinion. As an enduro rider i do this for the fun of it, not to brake records! Most of the time i have 3 Liters of water, some food and tools and stuff on me while riding with my budys for hours. One of them has a similar setup on his bike, but a carbon frame and wheels that costs over 1000bucks more, and the damm thing is just 1,5kg lighter!!!! If i have a good shit in the morning i can double down on that.🤣 And he is always afraid of damaging it, i couldn't care less to get some dings on my aluminum frame.
@bradarsenault6984
Жыл бұрын
Without measuring any forces, breaking stuff this way is just wasteful and misleading. Making assumptions and drawing conclusions on why and how the differences are changing the strength and durability with zero knowledge of composite structure, structural engineering, etc is just stupid. Furthermore, the force vectors being applied are never encountered on the bike. This video is worthless.
@MikeesTexas
Жыл бұрын
Video of the year!!! Please break more stuff!!!! Measure the forces too like Project Farm😉
@xm3ntal620
Жыл бұрын
I watch most of your videos bc I enjoy the content but I think this is a failed experiment. First off that was a massive amount of leverage with that breaker bar. Probably upwards of 500 ft lbs? Second, the direction of force applied is not really one you would see on the trail. Lastly, it appeared that a lot of the failures happened when the crank rested on the vise when you pulled down on the breaker bar.
@TomCollins-c4h
5 ай бұрын
I miss this content, the industry couldn't handle this transparency.
@derrickanderson2783
Жыл бұрын
"Hey roomies, you're all getting a new set of carbon cranks. Don't thank me; the ones we just broke were yours"... lol kinda something like that??
@tybourne686
Жыл бұрын
You are applying force in a direction opposite to the way our weight would be applied to the crank, not valid for real world comparison, plus as others have mentioned, you have no measurement of the force required to break it. Interesting video, but we didn't learn anything.
@johnykryll
Жыл бұрын
Be interesting to find out how much RF paid you guys. If this was an objective test you'd have other brands of carbon cranks as a comparison, useless review
@sepg5084
Жыл бұрын
What's the point of saving a few grams on a downhill/enduro track? I'd understand if this wan on an XC racer's rig trying to win a championship.
@NoNonsenseScalping
Жыл бұрын
These tests have absolutely no value at all due to the fact that the youtuber doesnt have a clue on where you should even put the load to mimic an accurate representation of actual forces that are acted upon a crank during racing use. Basic level 101 knowledge of carbon fiber and how it is laid up depending on loads is missed by his lack of understanding. This is basically equivalent to giving a child a toy and telling them to break it and expecting to get any valuable knowledge on the durability of it. Might be great for youtube views but worthless if youre really interested in actually knowing if these cranks are durable and well built.
@chimps4gimps
Жыл бұрын
The forces that you are applying are entirely at odds with how riding forces impact the arms. Testing that way is almost entirely pointless.
@brentmagerowski7886
Жыл бұрын
I can find other ways to spend 450 Not worried about breaking carbon cranks Just don’t see the gain for the money
@dannyrocks777
Жыл бұрын
I broke my Next SLs by casual trail riding. Buy titanium or aluminum and stay away from these.
@ehtikhet
Жыл бұрын
Breaking them in an orientation in which they will receive very little load during use? I think this video is just expensive vandalism.
@BogdanTimofte
Жыл бұрын
Next time try breaking things by applying force in the direction it acts in the real world, the direction they are supposed to be designed to be stronger.
@21armyn
Жыл бұрын
5dev is where its at..
@SnootchieBootchies27
Жыл бұрын
Things I would (or do) get carbon: Handlebars Rims Ski poles That is all.
@marcelomeier9366
Жыл бұрын
One of the most amazing videos about bike gear test I've watched. Keep it up guys!
@sotry123
Жыл бұрын
I hope we all learned a valuable lesson... don't lend that guy your respirator
@MrTJP777
Жыл бұрын
Next time use a tork measuring device in order to understand actual load...
@VerthNeel
9 ай бұрын
It it really useful a light crank in a downhill bike?
@_rainbowbiker_
Жыл бұрын
Very interesting! no one would test this ! nice video!
@blackmetalgoat9060
Жыл бұрын
Would love to see these done to a Shimano Saint crank
@joules2936
Жыл бұрын
Pretty useless test, beyond it being KZitem content, but even then I don’t think it’s much good as what you did is quite misleading. 1. Spindle position in vice changed - e.g. Next R crank snapped away from pedal insert because the vice was supporting a portion of the crank. 2. You said you were trying to replicate a landing. Landing a jump/drop is a sudden high force, which is nothing like what you did. 3. While some components will break from a single force loading, most will break through fatigue due to numerous force loadings - the one loading that results in failure just happened to be the last of many. That said, this video will still likely go some way to proving to many that Carbon is ok for cranks etc. however, just cause it’s Carbon, doesn’t mean it’s good, and same for Alu. A rubbish component can be made from any number of materials, just the same as a good component can - if it’s designed badly it will be crap, designed well it will be good.
@yumyumhungry
Ай бұрын
He was just breaking them to get a cross section to see how the components had changed from a design standpoint. Not actually test the durability
@mistermistero652
Жыл бұрын
Bruh. Youre testing all of them the wrong way around.
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