We hacksawed a carbon frame so that we could try to fix it

We hacksawed a carbon frame so that we could try to fix it | Syd Fixes Bikes

Рет қаралды 98,743

Күн бұрын

We cut a carbon frame so we could try an emergency carbon repair kit and see if we could fix a broken frame ON THE SIDE OF THE TRAIL!
We also reached out to carbon fiber repair professional, Brady Kappius from BrokenCarbon.com (bit.ly/brokencarbon), to get his thoughts on repairing a broken carbon frame.
What you'll need:
Water (check in your water bottle)
Fiber Fix repair wrap kit (a couple different links because it goes in and out of stock):
2" roll 2-pack (what we used): amzn.to/34Sgodd
1" roll: amzn.to/3aq2cwI
4" roll: amzn.to/2KEMSS4
1", 2" and 4" roll (3 pack): amzn.to/37xnQ0b
2" EXTREME (supposedly it's stronger?): amzn.to/37uXADC
Other things in the shed:
Our toolkit: bit.ly/337LfDf
Allen keys: bit.ly/2HpDW15
Work stand: bit.ly/3mTXStc
Tool pegboard: amzn.to/3mTYlLY
Syd's apron: amzn.to/345MbHz
Paint pens: amzn.to/2TpCL4u
00:00 Intro
00:22 What you'll need
00:42 Why should you do this?
01:34 Ask a pro carbon repairman
04:01 How to check if your bike is broken
05:13 Cutting apart a carbon frame (don't try this at home!)
06:34 Emergency repair on a carbon frame
10:39 Did it work?
12:21 How to repair a carbon frame in one minute
These links are affiliate links which means we get a small percentage of the sale! The price stays the same for you, but you can support our channel by purchasing through one of these links :)
If this video was helpful and saved you time and/or money, consider supporting the channel:
Patreon: / sydandmacky
Venmo: venmo.com/u/sydandmacky
Paypal: paypal.me/sydandmacky
Or hit the "Thanks" button above to leave a tip
Our vlogging channel: / sydandmacky
Our Instagram: / sydandmacky

Пікірлер: 196

@sydfixesbikes 3 жыл бұрын

Hi friends! We have been getting questions about this video since you saw me sawing apart a bike on our channel trailer and it's finally here! Check back in a few weeks (or better yet, subscribe 😉 ) to see the final product. If you have a broken carbon frame that needs professional help, check out bit.ly/brokencarbon

@andyb438 3 жыл бұрын

Do you have any videos on minor paint damage on a carbon frame? Without painting the whole frame?

@leonbond9275 3 жыл бұрын

The look of Devilish happiness in Syd's eye as she "Broke it some more" was Gold!!!

@Niidea1986 3 жыл бұрын

Tip: spray soapy water in order to prevent carbon powder from flying into the air.

@Zee-hl5iu 3 жыл бұрын

not to be that guy but that kind of mask wont protect you from carbon fibers in the air..get an m3 n95

@campbikerepeat3862 3 жыл бұрын

Doesn’t work for Covid either.

@raul0ca 3 жыл бұрын

I think the carbon fiber cut off with a hacksaw will still have a significant amount of resin on it decreasing the chance that it will stay airborne. Now if it was cut using a dremel...

@Xenon720 3 жыл бұрын

I would also recommend spraying water on it to keep the debris down.

@EestiTammela 3 жыл бұрын

Or vacuum

@kjeldschouten-lebbing6260 3 жыл бұрын

@@raul0ca You also don't want epoxy particles in your lungs.

@freerangemtb 3 жыл бұрын

It's really nice to know that there is a company out there (I'm sure more than one) that can do permanent repairs to carbon bikes. I have wondered what would happen if either my Giant road bike or my Trance had a break. My Trance is covered at least for another year by Giant's 2-year no-questions-asked carbon warranty, but my Defy is too old for that, and while I don't anticipate doing anything that will break the bike that doesn't mean I won't end up with a broken bike one day (hopefully, whatever breaks the bike doesn't break me). It's so nice to see that someone out there is doing these kinds of repairs. And I want to thank you, Syd, for these videos. Watching you do these repairs and maintenance tasks has really helped me feel confident in tackling my own repairs and maintenance. Because of you, I now have some really good quality tools, materials, and most importantly a cool shop apron! I've recently taken on the task of rebuilding my Fuse hardtail, and it's been a blast. I've watched several of these videos multiple times in order to get an idea of what is involved in the different tasks I'll need to tackle. Thank you! Stay upright and keep the rubber side down!

@AndrewBlucher 3 жыл бұрын

I have a little story about a Giant Defy ... A customer of mine had one of the first model, about 10 years old. I have serviced it a few times, the headset never needed adjusting. But last service, when I checked the headset there was sth wrong. When I took it apart I found a bulge in the CF steerer. Oops. Potentially fatal if it fails. After several months of haggling with Giant, because they didn't have a replacement fork for that old model, they have replaced my customer's ENTIRE frame! It took them some months. But it's an entire current model Defy. Nice one, Mr Giant!

@randomcontent2469 3 жыл бұрын

Me: watching video (6:04) Mom: walks into my room Me: volume doooooown

@rossg9363 2 жыл бұрын

Hahaha 🤣

@mikecarter6758 3 жыл бұрын

Broken Carbon fixed my son's old 26" mtb. He knows his stuff!

@sydfixesbikes 3 жыл бұрын

Awesome! We can't wait to see this frame after he fixes it!

@marciolprado1 3 жыл бұрын

DO NOT DO THIS WITHOUT A SPECIALIST'S FOLLOW-UP.

@socratelegris 3 жыл бұрын

Really enjoying your videos. Thanks for sharing these and Merry Christmas.

@justin_time 3 жыл бұрын

It took me days to be able to click on this video. So glad to learn the sawing was done on an already broken bike! Phewf! Cool video!

@andrenighthawk4431 3 жыл бұрын

Content gets keeps getting better!

@mathisbourcier1126 3 жыл бұрын

absolutely love this channel!!

@kenny83081 3 жыл бұрын

I'm an A&P (aircraft technician) and depending on how new the aircraft is there is a lot of what we call composite components (carbon fiber, Kevlar, fiberglass) on aircraft. They can be one material or a combination of them depending on the application. Fan blades on some turbine engines are composite and they turn at 10s of thousands of RPMs. Cool quick fix.

@dugldoo Жыл бұрын

Ya need an N95 particulate respirator for sawing, drilling, sanding, etc of carbon fiber, metal, wood, etc., and forced ventilation to the outside.

@LoneWolF-mj2sj Жыл бұрын

Nice.. You were fearless & held it together during the hole "emergency". I started writing as I was still watching and it felt as if it was real time.If that happened to me out somewhere nowhere close I might of.. I don't even want to say it ( carry the bike all the way back to my car) awesome video thought. Amazing fix,, Sweet test ride, Job well done.

@guskrassevich6373 3 жыл бұрын

You guys are great! Thank you!

@4961Studebaker 3 жыл бұрын

Aviation Nerd! - watch a doc about the Boeing 787 Dreamliner and the robotic machinery that wraps / creates the carbon wrap around the fuselage. Great video team.

@wiredrabbit5732 2 жыл бұрын

I studied composites at uni, and work in a industry that is on the leading edge of composite tech (carbon fibre is a type of fibre used in composites) In school, we called carbon, black fiberglass. In our business, we have electronic crack checkers and technicians who do nothing else. A slight crack and we just throw it away. But it can be repaired. It is just that easy. It'll be hard to get it to the same strength/stiffness and weight of the original (The pros will have the skills to ensure it's as close as can be). The length of overlap has to be significant (depends on the carbon weft), you have to get ALL the paint off. The type of resin used in that patch which sets quickly is very weak. The longer the set the stronger. So, if at the shop, look at something like system 3 resin. Done well it should compressed to ensure there are no voids and ideally heated (that's what we use autoclaves for) Yes, there is a lot to learn (a year of Uni to start) but yeah. Go for it.

@janstrecker 3 жыл бұрын

Great video! This qas an eye opener! I never thought repairing a carbon frame is feasible!

@aaron___6014 3 жыл бұрын

It's super doable

@Chasingtrails 3 жыл бұрын

Yeah there's a carbon repair business in the UK as well. Does awesome work.

@miketandthebike 3 жыл бұрын

Good video, this thing is pretty sturdy, I’ve made a down tube protector with it, best thing I could do

@razmtb5028 3 жыл бұрын

Awesome info!!

@feldybikes 3 жыл бұрын

11:32 sweet jump! You got like 3 feet of air that time.

@sydfixesbikes 3 жыл бұрын

😂

@xrom2501 3 жыл бұрын

I actually used that wrap on my handle bars after getting hit by a car. Got me 25 miles home.

@tisforturbo.3774 3 жыл бұрын

Love the Jamis Dakar 650 team bike was my fav until I upgraded to a pivot mach 4

@perryirons1399 3 жыл бұрын

Good to know in case I break one of my carbon frames. Thanks!

@BillSmithPerson 3 жыл бұрын

That’s super impressive.

@craig3576 3 жыл бұрын

I had a friend that badly crack his down-tube and fixed it with that fiber fix, he’s been riding it until he could get a new frame and it’s held super strong

@brentonandatent1767 3 жыл бұрын

Thanks for the video, I just repaired my aluminum frame using this stuff. Wish I could post the pics...seat tube and top tube were cracked all the through and all the way around, was riding with hose clamps holding it together because there aren't any new bikes due to covid, rides like new, for how long Idk but at least I'm back on my bike.

@nissemeys4766 3 жыл бұрын

Wow that's surprisingly sturdy

@South_Van_Ilse_MTB 3 жыл бұрын

Super cool!

@JustAGlitchFL 3 жыл бұрын

I think I saw somewhere that you can use a spray bottle to spray water, which will keep the dust down, when cutting carbon bats and such.

@richardhaselwood9478 3 жыл бұрын

That's what Park Tools do on their videos. Spray bottle with soapy water. Looks like an elegant solution

@wallacefreedom76 2 жыл бұрын

Cracked my carbon fiber frame right at the top tube, near the seat tube. It was just a crack, not completely separated. Bought a carbon repair set off Amazon, which contained 2 or 3 (can't remember exactly) different carbon fiber weaves (unidirectional and others) and an epoxy mix. I've ridden it hard for a full season and very impressed. I'm not worried at all that it will break. Very happy to have saved my bike.

@falcoperegrinus82 3 ай бұрын

What kit off Amazon was that specifically? Thanks!

@bikingwithemily1109 3 жыл бұрын

I've been waiting for this video since I saw it in the intro, a absolutely life saver on a super long bike packing trip. And in a way your right, sometimes you need to brake it more 😃 As a fiberglass repair and finish painter I've done it " screw it , I'm just gonna cut it out and rebuild it 🤣🤣"

@bca-biciclindcuaxel7527 3 жыл бұрын

You need to pull that harder !!

@oliverblack5477 2 жыл бұрын

I'm going to make a bike out of PVC pipes and this carbon repair stuff and have my own carbon fiber bike XD

@geemail369 3 жыл бұрын

Crazy product!

@marioman2471 2 жыл бұрын

Lmao I’ve looked everywhere for a video of the sound of flicking a broken frame and have determined I am just paranoid, thanks lmao

@matthieudanneels5122 3 жыл бұрын

I've repair my aluminium frame this way, a crack in my rear right base, not a pipe but a piece of cnc and only cracked at 50%. It's was a kit with resin apart and I use glass and carbon fiber. It holds for 5 mounths... 🤞

@sydfixesbikes 3 жыл бұрын

Wow!

@keirfarnum6811 3 жыл бұрын

That would get you home. Nice!

@watchesnwheels 2 жыл бұрын

Well… it’s pretty much the same as applying a cast in fractures! 3M makes a similar (if not the same) product called Scotchcast which is essentially a fiberglass weave embedded in water-activated resin. The steps needed to apply the wrap is essentially the same (as per casting a across a fracture). Gloves first - then dip in water, squeeze out excess water, wrap tightly distal to the crack, smooth out the surface of the wrap, wait for the wrap to dry out.

@AndrewBlucher 3 жыл бұрын

Wow. Great!

@quesnoy1 Жыл бұрын

The only problem with this experiment is that, in sawing the carbon, you create a gap between the two halves rather than just a crack that can fit back together like a puzzle peace. That means the repair kit is being asked to, not just hold two puzzle peaces together, but to create a small structural peace to bridge the gap between two peaces that no longer have matching surfaces. That's a big ask.

@LaurentiusTriarius 9 ай бұрын

One thing that always scared me since I saw a dude broke a carbon hockey stick is getting impaled by all the shards from the frame in case of failure...

@thim8009 3 жыл бұрын

Thats awesome

@michaelhorner4011 3 жыл бұрын

If you're out of water on the trail....I wonder if pee would work :)

@jfaust97 3 жыл бұрын

Would this work on an aluminum frame as well? I'm not sure how bonded this patch kit actually bonds to the frame v/s bonding with itself to create a rigid "sleeve" over the broken tube??

@sydfixesbikes 3 жыл бұрын

I think if you had a clean break not at a weld it would probably work as a temporary fix. Not sure how it would do if the frame snapped at a weld, which is what usually happens with aluminum bikes in our experience.

@hermandahlgrense 3 жыл бұрын

Another person underestimating the dangers of working with hardened carbon fibre

@scp.engineering 3 жыл бұрын

Where is the professionell repair video?

@stevencole7331 3 жыл бұрын

Remarkable

@rocketappliantist4969 3 жыл бұрын

Heads up that kind of mask is made to filter the air going out, not so much in. Any carbon you inhale will live in your lungs forever. I always use a respirator when sanding anything like fiberglass or paint. The 3m masks with snap on filters are nice, but even an n95 that makes a seal around your nose and mouth will do the trick for most sanding purposes. Stay safe!

@FrankyDesign 2 жыл бұрын

I'm happy with my MTB aluminum frame. It's harder to repair but less likely to break.

@1975normal Жыл бұрын

You just need to find a local welder to weld aluminum. Not that complicated.

@bonneharkema2458 3 жыл бұрын

I bet you can do this with ammunimamalinium frames as well. ;)

@davidmessem 3 жыл бұрын

I was thinking the same thing. Please try it Sid!

@GHinWI 3 жыл бұрын

Problem with that is a metal frame would typically break next to a weld, not in the middle of a nice smooth section of tube

@davidmessem 3 жыл бұрын

@@GHinWI good point. I have seen some cracks in the middle of tubes though

@Zee-hl5iu 3 жыл бұрын

@@GHinWI mine did..but it was cause i crashed on a rock haha

@baseljamal8907 3 жыл бұрын

What direction did you lay the carbon fiber layers in? I mean, what was the orientation of the fibers and why?

@lunam7249 2 ай бұрын

90 degrees, like a clock 3 hours, fibers are stronger in thier direction

@ericvaught2111 3 жыл бұрын

Okay, I tried to source your hacksaw blade with no avail... Correct me if I’m wrong but, it would seem that it’s not so much a blade as in flat but round? Still kinda “sand paper” cover just like the blade types are. Any help would be much appreciated, thanks.

@sydfixesbikes 3 жыл бұрын

It's a carbide cutting blade: amzn.to/3nc4zWL

@1975normal Жыл бұрын

Great video- I think it would be strong 💪🏼 even with that carbon fiber tape. It just wouldn’t look as nice

@keithgarn9038 3 жыл бұрын

So I am assuming it can still be professionally repaired after using the emergency patch kit?

@sydfixesbikes 3 жыл бұрын

Yup!

@nachelia 3 жыл бұрын

Are the wraps carbon? I couldn't find any explicit material online saying it was. It was just listed as "fiber with resin"

@MonMalthias 3 жыл бұрын

dynamix-cdn.s3.amazonaws.com/jbweldcom/jbweldcom_855685633.pdf If you look at the MSDS of the fibre fix tape, you'll find that it's glass fibre impregnated with epoxy. Looks like the catalyst is water activated instead of your standard A+B epoxy.

@808surferboy3 2 жыл бұрын

What happen to the professional repair video?

@NDemanuele1 3 жыл бұрын

I had a crack on my downtube on my previous bike. Initially I thought it was the clear coat. In some cases its hard to tell. Anyway, I got it repaired.

@sydfixesbikes 3 жыл бұрын

Nice! Been working well for you since?

@NDemanuele1 3 жыл бұрын

@@sydfixesbikes I sold it to my Bro, so far he hasn't complained!...LOL.

@jnygaarddk 3 жыл бұрын

VERY very few planes are made from carbon fiber. Airbus 350 being the only airliner I know of. And a few bizz jet, like the old Beechcraft Starship and Horizon. But they do have a ton of composite material on them, but not much of that is carbon. More glas and kevlar.

@justinsebastian2007 Жыл бұрын

Will a wee ride baby seat mount to this?

@jmoore3854 Жыл бұрын

What did you do to break the chain stay like that.

@infinityhike 3 жыл бұрын

So guys, it seemed the carbon patch was adhering mostly to the sanded paint. Therefore the same patch could be applied to any bike with a paint job for purposes of getting out of the woods.

@sydfixesbikes 3 жыл бұрын

Haven't tried, so we can't guarantee it, but quite possible!

@MajykOyster666 Жыл бұрын

Any update on that permanent repair ? Would be nice to see that. :)

@sydfixesbikes Жыл бұрын

It's been ridden for the last couple years by kids on the local highschool NICA team and been a great bike for them!

@zap... Жыл бұрын

@@sydfixesbikes You had mentioned that a permanent fix from a professional repair facility video would be forthcoming. This would be great to see. What carbon repair facility did you use?

@sydfixesbikes Жыл бұрын

We sent it to Broken Carbon (link in description) and they did a great job! Didn't end up doing a video about it, but it's been ridden by racers on the local highschool MTB team for two years now and is still going strong!

@southin5g Ай бұрын

Hello do you have used bicycle frames for sale trek Madone SLR Gen 7 size 50

@Bobcatspiritdude 3 жыл бұрын

Whatever happened to the fiberglass bikes ?

@hasdas9088 3 жыл бұрын

That stuff reminded me of velcro...

@anthonysteellarenas7367 3 жыл бұрын

does it still hold if it gets wet again?

@Chasingtrails 3 жыл бұрын

Haha!

@Icehso140 3 жыл бұрын

Question for the intermediate rider. Which would have a tendency to break easier...Carbon fiber or aluminum? Good video.

@sydfixesbikes 3 жыл бұрын

Neither, really, as bikes are extremely well made nowadays. That being said, carbon is generally stronger overall (there are some interesting videos on KZfaq of stress testing carbon to failure) but doesn't deal well with point specific impacts (like landing on a rock).

@Icehso140 3 жыл бұрын

@@sydfixesbikes Thank you. That's good to know. A lot of us may be able to afford CF but need more info to decide on future purchases. I am in the 60+ catagory so I doubt I'll be stressing any frames to their max anyway. I'm riding Orbea now with an aluminum frame, but may be going to a 29 hardtail just because I have room in the garage for it. LOL

@sydfixesbikes 3 жыл бұрын

N+1 for sure!

@jomaquiopatokong8328 3 жыл бұрын

It's look like just a chain protector. But i think you can wrap it without sawing it. Just sand it and wrap. No need to saw.

@iberiksoderblom 3 жыл бұрын

My sailboat is for a great part carbon fiber. When ever it's out of water something allways needs some repair (or reinforcement). It's not that different from working with fiberglass.

@matt7775 3 жыл бұрын

There is absolutely no difference

@timquain5341 3 жыл бұрын

I cracked my head tube on my carbon Kona Process. Do think a professional repair will be as strong as the original?

@sydfixesbikes 3 жыл бұрын

Yup, good carbon repair people (like our friend Brady at www.brokencarbon.com/) will fix it back to the original strength!

@bluefire2505 Жыл бұрын

Can you please make a video about a permanent repair ??

@jcsrst 3 жыл бұрын

Hacksawing a frame is like nails on a black board 😱!

@polishguywithhardtospellna8227 3 жыл бұрын

6:54 This guy farted while his acetylene cutter was on, true story

@paullmight42 3 жыл бұрын

you need a mask while sanding too...unless you're wet sanding...be safe! really cool kit tho...and it clearly worked...!

@Chasingtrails 3 жыл бұрын

that was only paint - but yeah, better safe than sorry.

@paullmight42 3 жыл бұрын

@@Chasingtrails paint can be worse...

@Chasingtrails 3 жыл бұрын

@@paullmight42 normal paint isn't carcinogenic, whereas carbon dust is. Not good to breathe in any dust though. If you're spray painting that can be really bad without the right gear.

@LorenzoTheFisherman Жыл бұрын

approximation to its finest

@Tubbs_1971 3 жыл бұрын

Next time get a mask with a respirator. Thats not a particle mask you are wearing. Better than nothing but youd have been better off with a bandana than that little mask. I wonder if you can use carbon patch on an aluminum frame. Would it adhere to it?

@rfwillett2424 3 жыл бұрын

It would probably work for a while as an emergency repair, the better the preparation the longer it will last. With proper preparation of the aluminum, and if you used the correct primer for the resin, it would be permanent. The Australian Air Force has used composites to repair airframes for decades.

@Tubbs_1971 3 жыл бұрын

@@rfwillett2424 thanks. I hope i never crack my frame. Its a trek so its covered but this is nice on trail fix.

@sydfixesbikes 3 жыл бұрын

I imagine it would work if you got a clean break. In our experience aluminum frames often bend before they break tho. Or break along a weld 🤷‍♀️

@mattgies 3 жыл бұрын

This may answer your question--an ad for the product in question where they sawed a steel BMX frame in half and then taped it back together with the product: kzfaq.info/get/bejne/o9iHe7d5taylnoU.html

@David-xl9cp 2 жыл бұрын

Shouldn’t have cut the frame with a wrap as this will further weaken the joint :-) But go for it Syd, girl on a mission, good for you

@paulb9769 Жыл бұрын

That is what I thought to. Sanding and wrapping would have been enough.

@trailhobbit9103 3 жыл бұрын

Add a "Lizard Skin" (or similar) chain stay protector ... and nobody knows!

@TechnoUndergroundOfficial 3 жыл бұрын

Magic Carbon

@luciejedlickova3361 10 ай бұрын

The bike is solid and my Ebike conversion went great. kzfaq.infoUgkxHL1v1R3NE5x4KiYfyt8dnQmyNYz7qi5L Very smooth ride at 30mph with no problems (135 miles ridden so far). The picture is a bit deceiving - there is WAY less space in the center of the frame than it shows. The suspension connection takes up the entire thing. So I needed to attach my battery on the bottom of the frame and my controller on the top. Instructions for assembly were lacking but honestly it wasn't too hard to figure out even though I have very little bike knowledge. Watched some youtube videos on adjusting the disk brakes but that was it. Still, I am loving it and very happy with the purchase.

@timothy24287 10 ай бұрын

Small, 48-50 cm.

@yellowfinendurance 3 жыл бұрын

why did you saw the frame?

@nerigarcia7116 3 жыл бұрын

This hurt to watch but it was cool.

@richardjones2811 3 жыл бұрын

I think if there's a business out there totally aimed at fixing broken carbon frames then carbon frames should be questioned!

@tychoMX 3 жыл бұрын

nah. All bikes can break. Steel, Al, Titanium. Although to be honest I've never seen a Mg frame, I'm sure they break too. Repairing a run-of-the mill steel frame is almost trivial for anyone with welding experience. TIG repairs for titanium, not as much. And aluminium tends to be a bit more problematic because you probably need to heat treat it to make sure the alloy hasn't unreasonably weakened.

@jeremynorth 4 ай бұрын

You should have sanded down the chain stay before cutting it.

@jackiegammon2065 3 жыл бұрын

There are definitely many companies out there that repair carbon fiber frames, nothing new here. Although I think most folks realize that it is NOT a long term fix, I also know as a shop owner how many times someone thinks there is nothing wrong with a bike...when there actually is. So I think it's wise to show what is out there for info/products, but wonder whether some will think that is a long term fix if they ride only a few times a year. I love the info, but also wonder if this is a slippery slope to get into....

@lolgabelol100 3 жыл бұрын

The bond prep gave me cancer

@sorenoneil3876 3 жыл бұрын

My friend had that done and the bike rebroke a few months later

@whiskeydelta4073 3 жыл бұрын

Guys i don't know what to do. My polish (from Poland) carbon bike frame broke at the chainstay. I sent it to a company similar to Broken Carbon so i'm not worried about the chainstay breaking anymore (even if it breaks they will fix it again because it has warranty), but I don't have any more trust in that frame and i'm worried that it can brake in some other place. On the other hand it will be quite expensive to buy a new frame because this bike i have bought on a very good discount and i feel bike parts have gone up in price in general due to covid here in Poland at least.

@sydfixesbikes 3 жыл бұрын

Unless it's a really old frame, it's unlikely to break again as generally breaks are due to an impact or a weakness in one area of a frame (which you already found and had repaired).

@FantasticPyroclastic 3 жыл бұрын

did it HVRT? :D

@thomaszabukosek979 2 жыл бұрын

Apparently squeezing a damaged frame is a great way to increase the damage. So maybe remove that bit? Otherwise love your videos!

@rajeshnathwani6333 Жыл бұрын

I also want to learn to fix bikes

@kleini3 6 ай бұрын

Tap test ist pretty useless with carbon frames since the thickness of the layers can change on multiple places on something like the top tube so the sound changes even if everything is fine

@riensartwork 3 жыл бұрын

nothing lasts as long as a provisional solution

@jozefemperor 3 жыл бұрын

I really don't understand why did you cut the frame with the saw? Couldn't you just wrap it over the crack?

@zepp3lin 3 жыл бұрын

It's for the show and showing us how strong the carbon repair job can be. A real situation I will not cut it.

@sydfixesbikes 3 жыл бұрын

Sorry if that wasn't clear! Macky had ridden the bike for awhile before noticing the original crack so it might have survived all our tests anyway and we would have gotten 100 comments saying "that won't work if it's really broken" etc. We had to make sure it was all the way broken for the sake of our experiment (and our own entertainment tbh 😂)

@tomgdownhill Жыл бұрын

The carbonfiber repair business owner was way off when talking about aluminium repair 😅 and when i fixed carbon frames, i sold them very cheap with a big heads-up warning ⚠️ not really something to giveaway and have an unknown rider, and have an accident due to the repair. Never as good as the original full length of strands.

@bioshift1 3 жыл бұрын

You need to put water on the carbon while you cut and or sand. Very dangerous to do that dry. Or at least have a extraction fan to get the dust away from the work area.

@criticalthought7527 3 жыл бұрын

I'm worried that a fan might make things worse. I use wet paper towels when cutting steerer tubes, but will try the soapy water next time. Maybe both.

@bioshift1 3 жыл бұрын

@@criticalthought7527 I used the wrong word. I mean like a fume extractor. Kinda like people use for welding and soldering.

@criticalthought7527 3 жыл бұрын

@@bioshift1 , Sorry, I read your comment too quickly to pick up on your meaning. Great idea for the pros, but there is no way I could justify the expense for our shop. The wet paper towels and an N95 seemed to work OK, especially for controlling the falling dust. But I'm hopeful that the soapy water will be even better. I don't need carbonosis of the lungs. ;-) Be well, j

@bioshift1 3 жыл бұрын

@@criticalthought7527 Yup no problem, Totally understandable man. Be safe and have a good holiday.

@thim8009 3 жыл бұрын

I was looking into everything I can after watching this and everyone sanded down past white layer to carbon mesh.

@sydfixesbikes 3 жыл бұрын

I suspect those were people trying to do a more permanent repair. The idea behind this was something that would get you home if you cracked your frame on a big ride and then you'd send your frame in to a professional to have it repaired properly...

@thim8009 3 жыл бұрын

@@sydfixesbikes ya your right and thanks for showing. You can go for crash replacement but with covid you might have to wait a year for a frame.

@freddukepoo3359 3 жыл бұрын

Thats one of the reasons I don’t buy carbon bikes... crash happens and all it takes is a nice rock to crack it. I work with carbon fiber fan cowl doors after I build a turbofan engine and during steps and gaps I’ll have to remove some of the carbon and that dust gets everywhere and dust masks are required.

@tolfiboyProduction 3 жыл бұрын

A ffp1 mask is not effective at all against carbon dust :/

@solitaryrefinement6787 3 жыл бұрын

I'm just here for all the "duct tape" comments. 😎 Also, it's cheaper to just buy an all new aluminum frame than to repair it and it takes a hell of a whole lot more to cause aluminum to fail than carbon. In fact, you can get a whole new comparable aluminum bike for the cost of a carbon frameset. BTW, the repair kit is a great idea and now there's a permanent chainstay protector on it. 👍