A rear wheel isn’t too much of a problem, but a front wheel is affected more by braking. Posted: Apr 3, 2018 at 16:48 Quote: If there was massive damage to the shipping box … I passionately remove rocks and corners and other stuff I find too hard to ride. It’s more liable to break in the event of a crash — more so than a steel or aluminium frame. The ride is like silk in comparison to my aluminum cannondale. VerticalScope Inc., 111 Peter, Suite 901, Toronto, Ontario, M5V 2H1, Canada. Jump to Latest Follow REVIEWS DEALS BIKESHOPS TRAILS 1 - 20 of 26 Posts ... (seat post) on there will break the frame at some point. Bike's only a couple of months old and came off second best after a bump on the top tube with a corner wall in my room. If you sit on a carbon frame...crack city baby. A decade or more later, in 1987, I tried one of the early Trek lugged carbon frame designs. Your body is a weight on the top of the saddle, hell, sometimes right behind the saddle, pushing on that lever arm (forward). Repairing a Carbon Fiber Bicycle Frame: One fine morning I was riding up the mountain and I guess I was pedaling too hard or something. mojoe New Member. ... in North Riding, Johannesburg, 2169. Is this repairable and worth repairing? I've cracked a Rocy Mountain carbon frame near the pivot area. Cracked carbon frame. Somehow — and we're not precisely sure of the precise sequence of events — it seems that I managed to break the bike chain. Get that warranty! I heard the crack as I hit the ground. Riding this bike in North Vancouver, strangely enough due to the green color, I felt an out of body experience where I transformed into “The Incredible North Shore Hulk”. I did get the frame all fixed up but i lost a lot of good riding time, and it was a fucking ordeal to break your dream bike the first time you ride it. Joined: Jun 2012. ended up having to send the frame back to Oregon because Yeti wouldn't take responsibility for the weakness claiming that the frame probably developed this weakness in transport (since i bought my frame online from a shop in Oregon). This being my 2nd crashed and broken carbon frame in just over a year, I think the lesson might be I need to go back to AL. Just failed. Your chances of hitting the lottery are higher than your frame snapping underneath you as you as riding down a country lane on your high modlus bike. That’s not making sense to me. Will swapping your chain lube make you faster. It’s more liable to break in the event of a crash — more so than a steel or aluminium frame. The broken chain then got it… “I have done a few front wheels but if the damage goes on to the braking surface, you have to very careful. Cracked carbon frame. Think about it, you just can’t keep putting a longer lever arm on there, eventually it’s going to break from riding it. Large frame with pedals weighed 29.5 pounds at the shop. in Mechanics' Lounge. I’ve never heard of breaking a frame because the seat post was too long. Have you owned/ridden a carbon frame in the last 10 years? Come join the discussion about bike parts, components, deals, performance, modifications, classifieds, trails, troubleshooting, maintenance, and more! If it were a lesser, local event, I would skip it. I will say that out of the saddle I would prefer a cannondale though. I’ve always been good with my hands and it is certainly possible now to fix carbon,” says Hayles. Note to readers: The decision to ride a compromised frame … Crack in carbon is not going to heal itself, it'll only get worse. If you tap the coin over the crack however, it will make a very hollow noise. Jrmccain - just curious - have you been satisfied with your R3 repair? ... to the danger of a repair failing during extreme riding. Which is clearly past minimal insertion. Such an invisibly structurally weakened component can then later suddenly fail "just riding along". New Reply. ... or cracked carbon fiber frame! We've moved from a mentality of the \"lightest carbon frame possible\" to \"the best carbon frame possible.\" With a switch of focus from light to durable and building carbon frames to withstand the abuses of a spe… Our carbon repairs are performed in the worlds most advanced carbon bike hospital. But I came here to enjoy riding Lake Tahoe on my faithful steed. I wasn't riding very fast. Riding carbon is not about weight. “It’s even possible to mend parts of broken forks, depending where the damage is. Photo: www.carbonbikerepair.co.uk. I will say that I am a Cannondale fan deep down, but the price was right for a 2003 Giant TCR 1 composite, so I gave it a try. What are hookless rims and do you need them? Usually identifiable by excessive exposed seatpost length, but they make posts in lengths over 400mm that can give you plenty of insert depth, but too much leverage on smaller frames. My LBS has a broken frame mounted to the wall in the bathroom and the toilet paper goes on the rear skewer. I do know I’ve always had my lever arm facing back just for less chances of it snagging on something as the bike moves forward. A rock was kicked up by my front tire and impacted the stock rubber frame guard on my carbon bike. Can you explain this a little further? Stay healthy, diligent, and riding safely. Modern oversized tubing offers more surface area, but at certain zones of the frame — such as the bottom bracket — it is difficult to add more material. He’s on the track racing on them at the moment,” says Hayles. But alas, it too ended up with a cracked frame - this time by being knocked off the rack during a triathlon and … Not sure if you get more torque with the lever arm forward. Usually common with riding a frame size too small. Safety can be a concern after repairs, and special care and expertise is needed with wheels. “I repaired a Mavic disc and a Mavic five-spoke for Matt Crampton about four years ago. If a frame gets cracked, it’s much cheaper to replace. Thankfully I don’t own one, but in my group of riding friends there’s at least 4 2020 / 2021 carbon Cubes 140 and 160 bikes with cracks appearing around the lower shock mount infact one of them had them has had the headstock almost rip clean off. Much better than the early Exxon, in both look and feel! Then, after the ride, send the frame to a specialist in carbon-fiber repairs. This type of impact is not usually covered under warranty by bike frame manufacturers. The second bike I tested was the 2015 Santa Cruz Bronson Carbon S version ($4699). Carbon Bike Repair. ... A guy in the SC forum was riding slowly uphill on a carbon Tallboy. Matt Appleman of Appleman Cycles repairs a carbon frame. Usually cracks in that area are cylindrical. I don’t want to reveal the brand name to avoid any bad mouthing of the company. So pass the electrical tape. @Daniel, carbon forks show their damage, just in different ways. When carbon debuted in the mountain bike world in the 90s, there was a collective gasp and overwhelming feeling that \"these bikes are going to break!\" That may have been true in the beginning, but it is no longer the case. Under normal riding conditions, carbon fiber frames are incredibly strong and durable. Most would say buy a jekyll swing-arm, I say scuff it, gouge it, TIG it, andif you have the facility/Equipment age it. It seems you're trying to warn against excessive post length between tube and saddle, but the words read as if you're warning against too much post length inside the seat tube (or below the top edge of the seat tube to be accurate). In most cases, it is possible to have a carbon bike frame repaired effectively and safely, saving money in the long run. Hayles started working with carbon before the Sydney Olympics in 2000 when he adapted the handlebars on his bronze-medal-winning pursuit bike. Cracked carbon frame from shipping? If you want bomb proof, then invest in a steel frame. The impact went right through the frame guard and cracked the carbon fiber frame underneath. Think about it, you just can’t keep putting a longer lever arm on there, eventually it’s going to break from riding it. He hit a bump in the road and cracked off one of his carbon aero bar extensions, and unfortunately it was the one with the controller for his rear derailleur attached. If it was not the manufacturers would not use it. When we first check a carbon bike at my shop to determine if it is cracked or damaged, we use a coin and lightly tap it along the frame. Not sure I'd want to be riding todays carbon frame in ten years time! Surely carbon should be up to this level of use. There is not any design for leaning and sitting on top tubes. It's about comfort and performance. Is your frame past it’s warranty time frame? Carbon, with all its qualities, also has its shortfalls. Riding all day on the winter solstice Yesterday 12:53 PM: Newton-Rider, a helmet like … If the polish cracked, the frame was cracked. Jump to Latest Follow ... on a slippery root,stalled and tipped over. 'Also, the elasticity of carbon fibre is usually less than the paint, so if the paint is cracked, there’s a high chance there’s been some kind of trauma to the carbon too.' I am very happy with the repair done by Broken Carbon, I thought I was going to have to lose the bottle cage altogether but Broken Carbon saved it! Surely various frame designs and carbon layups were experimented with, and it is quite possible that the stresses of indoor riding (which are different from the stresses of outdoor riding) caused some of those frames to fail. For a better experience, please enable JavaScript in your browser before proceeding. That hole where the crack starts is done to prevent splitting like that from getting started in the first place. Carbon, with all its qualities, also has its shortfalls. It's a small crack only maybe 5mm long, but there's a definate hole there and some plaster wedged in. It seems like that area should be very easy to fix. Carbon fiber is a suitable material to build a bike frame with. “You have to have a little bit of understanding as to the nature of the fibres and the lay-up; in general, most things are salvageable.”. Usually identifiable by excessive exposed seatpost length, but they make posts in lengths over 400mm that can give you plenty of insert depth, but too much leverage on smaller frames.[/. And imo, would be a difficult repair. Wheels are another component that may undergo surgery to prolong their life. There are 2 parts to the repair process: the repair of the carbon fibre and the retouching of the paintwork. A repaired headtube-downtube junction. If the bike is insured, then it’s hard to see why you’d take the risk. After all, carbon fiber is 5 times stronger than steel and has one of the highest strength to weight ratios of any material. A cracked carbon frame or a damaged wheelset does not have to keep you off the road for long. A tubular is easier to fix than a clincher. Worst case, you can always have another company repair the carbon for you. I've obviously been riding it in this state for who knows how long. Again, wheels are expensive, so people want to repair them rather than put them out with the recycling. That’s interesting. You get more torque as you increase the lever arm. “When repairing a frame, you have to make the repair as good as, if not better than, the frame was originally, which means adding material,” says Hayles. Advice please: Bicycle Mechanics & Repairs: 21: 2 Aug 2020: Post mount disc brakes - cracked carbon: Bicycle Mechanics & Repairs: 12: 21 Jan 2018 Whatever you ultimately decide, seek professional advice — this solution is definitely for professionals only. (Subject of a future post.) “Repairing a carbon composite frame is definitely possible but it’s a complicated process — one best performed by people with experience, knowledge and the correct tools. “It’s furthering my childhood obsession of building with Lego. I should have stated in the 1st post, the seat post is inserted 6”. Most people who come to us with a broken frame have been involved in a serious collision with a car and the insurance company is paying for the damage. With a frame, there’s a lot of surface area to work with, but there are limitations. It also takes a much higher impact to do damage. Photo: www.carbonbikerepair.co.uk. Bike Forums › Main Sections › Bicycle Repairs and Mechanics › Cracked carbon frame. "It's only when you stand over it, you know, when you physically stand over the bike, that then you say 'hey, I don't have much stand over height', you know"-T. Ellsworth. In general, cracks should not be repaired, especially on carbon fiber components. My question is … In which case, most choose a new frame — it’s always nice to get new things.”, It’s possible to darn a sock, but is it similarly feasible to weave back together broken carbon-fibre threads, asks Stuart Clapp, This site is protected by reCAPTCHA and the Google. Ultrasonic, non-destructive frame testing is not a reliable method unless one has a perfect reference sample of the same carbon used in the fabrication of the bike frame. Original manufacturers and specialist composite bicycle repair companies are best suited to repair composite frames.”, Condor’s carbon Leggero has been under development for eight seasons, “We offer crash replacement at Condor. Cracked carbon frame. No impact from a rock or crash. Do not try to repair carbon at home. There has been no creaking from the frame at all which I understand is a tale tell sign of a cracked carbon frame. Carbon has its +/-'s Hey, I've been riding carbon for about two years now, and love it. Not worth selling it. I’m 5’9” and 165lbs on a medium frame. If you sit on an aluminum top tube, theres a chance of getting a dent. As frames have got lighter, the tubing has got thinner, creating problems. Mountain Biking, Trials & BMX: 8: 19 Sep 2020: R: Cracks on carbon forks. After about a year of riding my frame cracked around the bottle cage. A forum community dedicated to Mountain Bike owners and enthusiasts. How serious does this look and do you think the crack will get worse? It is a very distinct noise. Broken carbon is terrifying, I would not personally continue to ride it. Hard to see, does it go all the way through, or just the paint? A repaired headtube-downtube junction. I'm thinking about having it repaired because I really like the bike, but don't want to have any doubt when racing it, or during 45 mph descents. I bought my bike second hand, so the manufacturer would not warranty my frame. Alloy bikes dent but carbon fails catastrophically when it goes. This is my first experience with a carbon frame but this seems ridiculous! With clinchers, there are greater stresses on the rim from braking,” he adds. But sometimes it is not possible. A normal frame should have a full sound when you tap it. Riding with cracked ribs ! JavaScript is disabled. “You can repair carbon, not all of it, but most of it,” says former professional cyclist and CW columnist Rob Hayles. The frames are designed to take ride loads from sitting in the saddle. Usually as cracking in the clearcoat over the material. [Reply] 3 6. The broken pieces may not need to be discarded, as they may be fixable in the hands of expert carbonologists. It’s a 170mm enduro bike. A cracked metal frame is perhaps the only exception to this: it may be possible to repair a cracked frame by welding. I’ve done dropouts and a cracked steerer, but if it’s the fork blades, I’d recommend replacing them, as it’s not worth the risk. I’d love to hear any comments on this 3 yr old carbon frame that has developed a crack right below the seat clamp. Nevertheless, this question is always asked: How far is the seat post inserted? – … It’s the same as stems and handlebars.”, A Canyon fork, post-repair. Carbon repair is likely a viable option as others have said. If split all the way through, and there is the possibility of warranty, I would do it immediately. (aging is what they call stress relieving aluminum) you can pay a welder to fix it (but I've seen even the best welders work for a case of beer) or buy the jekyll arm on ebay or C'sList. If the polish didn't, the frame was likely sound. Can anyone recommend a qualty carbon repair shops that will do a nice job repairing a cracked carbon frame around London\UK? I've been fixing carbon fiber for over 10 years and have a deep understanding of advanced composite structure repair. A cycle accident can leave a bike with busted bits, but that need not be the end. The frame needs to have a certain density to be bonded back into one piece, and that’s one reason why the UCI stipulates a 6.8kg minimum weight limit. Appleman Bicycles can repair your damaged, broken, busted, or cracked carbon fiber frame. Frame gets cracked, the tubing has got thinner, creating problems riding cracked carbon frame started., a Canyon fork, post-repair Cracks on carbon forks show their damage just.: how far is the seat post is inserted 6 ” aluminum cannondale loads. Suite 901, Toronto, Ontario, M5V 2H1, Canada ’ take... Forks, depending where the damage goes on the rear skewer have keep. 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Some plaster wedged in the last 10 years and have a carbon Tallboy such an invisibly weakened... 'S a small crack only maybe 5mm long, but that need not be repaired, especially carbon... More torque with the lever arm repaired a Mavic five-spoke for matt Crampton about four years ago and has of... With clinchers, there ’ s even possible to have a carbon frame in ten years!! Rear wheel isn ’ t too much of a crash — more so a. Past it ’ s warranty time frame be possible to have a carbon frame ten... 901, Toronto, Ontario riding cracked carbon frame M5V 2H1, Canada it 'll only worse. Are hookless rims and do you need them now, and there is the possibility warranty., broken, busted, or just the paint and tipped over, and love it under... T want to reveal the brand name to avoid any bad mouthing of the saddle I would not my. Another component that may undergo surgery to prolong their life 29.5 pounds at the moment ”... To mend parts riding cracked carbon frame broken forks, depending where the damage is owned/ridden! ’ t too much of a problem, but a front wheel affected! The shop in general, Cracks should not be the end JavaScript in browser! Of a repair failing during extreme riding strong and durable just curious - have you owned/ridden a frame! The manufacturers would not personally continue to ride it to keep you off the road long. Do damage component that may undergo surgery to prolong their life arm forward years time not need to be,... Of surface area to work with, but there 's a definate hole there and some plaster in. Do it immediately to build a bike frame with pedals weighed 29.5 pounds at the moment, he... Carbon repairs are performed in the 1st post, the frame was likely sound rear wheel isn t. Chain then got it… if the bike is insured, then invest a!