Surely carbon should be up to this level of use. 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. The impact went right through the frame guard and cracked the carbon fiber frame underneath. The ride is like silk in comparison to my aluminum cannondale. I passionately remove rocks and corners and other stuff I find too hard to ride. There are 2 parts to the repair process: the repair of the carbon fibre and the retouching of the paintwork. Riding carbon is not about weight. Is this repairable and worth repairing? 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. My LBS has a broken frame mounted to the wall in the bathroom and the toilet paper goes on the rear skewer. With clinchers, there are greater stresses on the rim from braking,” he adds. Cracked carbon frame. I should have stated in the 1st post, the seat post is inserted 6”. 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! Most would say buy a jekyll swing-arm, I say scuff it, gouge it, TIG it, andif you have the facility/Equipment age it. Cracked carbon frame from shipping? Carbon, with all its qualities, also has its shortfalls. But alas, it too ended up with a cracked frame - this time by being knocked off the rack during a triathlon and … With a frame, there’s a lot of surface area to work with, but there are limitations. New Reply. There has been no creaking from the frame at all which I understand is a tale tell sign of a cracked carbon frame. 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. Carbon repair is likely a viable option as others have said. 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. “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.”. Carbon, with all its qualities, also has its shortfalls. “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. Large frame with pedals weighed 29.5 pounds at the shop. Safety can be a concern after repairs, and special care and expertise is needed with wheels. [Reply] 3 6. If split all the way through, and there is the possibility of warranty, I would do it immediately. If you tap the coin over the crack however, it will make a very hollow noise. If the polish cracked, the frame was cracked. 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. Have you owned/ridden a carbon frame in the last 10 years? Do not try to repair carbon at home. He’s on the track racing on them at the moment,” says Hayles. – … Which is clearly past minimal insertion. “I repaired a Mavic disc and a Mavic five-spoke for Matt Crampton about four years ago. If you sit on an aluminum top tube, theres a chance of getting a dent. Carbon has its +/-'s Hey, I've been riding carbon for about two years now, and love it. Think about it, you just can’t keep putting a longer lever arm on there, eventually it’s going to break from riding it. Not sure if you get more torque with the lever arm forward. Posted: Apr 3, 2018 at 16:48 Quote: If there was massive damage to the shipping box … ... or cracked carbon fiber frame! Appleman Bicycles can repair your damaged, broken, busted, or cracked carbon fiber frame. That’s not making sense to me. Can you explain this a little further? Cracked carbon 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… 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. in Mechanics' Lounge. Alloy bikes dent but carbon fails catastrophically when it goes. Not sure I'd want to be riding todays carbon frame in ten years time! There is not any design for leaning and sitting on top tubes. You get more torque as you increase the lever arm. '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.' “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. “You can repair carbon, not all of it, but most of it,” says former professional cyclist and CW columnist Rob Hayles. I don’t want to reveal the brand name to avoid any bad mouthing of the company. 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. Just failed. If a frame gets cracked, it’s much cheaper to replace. 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”. A rock was kicked up by my front tire and impacted the stock rubber frame guard on my carbon bike. Note to readers: The decision to ride a compromised frame … My question is … "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. @Daniel, carbon forks show their damage, just in different ways. It’s the same as stems and handlebars.”, A Canyon fork, post-repair. ... to the danger of a repair failing during extreme riding. But I came here to enjoy riding Lake Tahoe on my faithful steed. 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. JavaScript is disabled. Joined: Jun 2012. ... A guy in the SC forum was riding slowly uphill on a carbon Tallboy. 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. I've been fixing carbon fiber for over 10 years and have a deep understanding of advanced composite structure repair. Riding all day on the winter solstice Yesterday 12:53 PM: Newton-Rider, a helmet like … A repaired headtube-downtube junction. But sometimes it is not possible. Stay healthy, diligent, and riding safely. No impact from a rock or crash. The second bike I tested was the 2015 Santa Cruz Bronson Carbon S version ($4699). Usually cracks in that area are cylindrical. A normal frame should have a full sound when you tap it. VerticalScope Inc., 111 Peter, Suite 901, Toronto, Ontario, M5V 2H1, Canada. I’d love to hear any comments on this 3 yr old carbon frame that has developed a crack right below the seat clamp. Somehow — and we're not precisely sure of the precise sequence of events — it seems that I managed to break the bike chain. If the polish didn't, the frame was likely sound. A repaired headtube-downtube junction. Nevertheless, this question is always asked: How far is the seat post inserted? I will say that out of the saddle I would prefer a cannondale though. 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. A cracked metal frame is perhaps the only exception to this: it may be possible to repair a cracked frame by welding. I’ve never heard of breaking a frame because the seat post was too long. So pass the electrical tape. Wheels are another component that may undergo surgery to prolong their life. I’ve always been good with my hands and it is certainly possible now to fix carbon,” says Hayles. Crack in carbon is not going to heal itself, it'll only get worse. It's about comfort and performance. If you want bomb proof, then invest in a steel frame. That hole where the crack starts is done to prevent splitting like that from getting started in the first place. For a better experience, please enable JavaScript in your browser before proceeding. The broken pieces may not need to be discarded, as they may be fixable in the hands of expert carbonologists. 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. “It’s furthering my childhood obsession of building with Lego. If it was not the manufacturers would not use it. In general, cracks should not be repaired, especially on carbon fiber components. How serious does this look and do you think the crack will get worse? Get that warranty! 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). “It’s even possible to mend parts of broken forks, depending where the damage is. After all, carbon fiber is 5 times stronger than steel and has one of the highest strength to weight ratios of any material. Come join the discussion about bike parts, components, deals, performance, modifications, classifieds, trails, troubleshooting, maintenance, and more! (Subject of a future post.) It is a very distinct noise. A forum community dedicated to Mountain Bike owners and enthusiasts. Then, after the ride, send the frame to a specialist in carbon-fiber repairs. “I have done a few front wheels but if the damage goes on to the braking surface, you have to very careful. Much better than the early Exxon, in both look and feel! 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. That’s interesting. Usually common with riding a frame size too small. Hayles started working with carbon before the Sydney Olympics in 2000 when he adapted the handlebars on his bronze-medal-winning pursuit bike. Not worth selling it. I’m 5’9” and 165lbs on a medium frame. Photo: www.carbonbikerepair.co.uk. Worst case, you can always have another company repair the carbon for you. This type of impact is not usually covered under warranty by bike frame manufacturers. 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. It's a small crack only maybe 5mm long, but there's a definate hole there and some plaster wedged in. Under normal riding conditions, carbon fiber frames are incredibly strong and durable. Our carbon repairs are performed in the worlds most advanced carbon bike hospital. Whatever you ultimately decide, seek professional advice — this solution is definitely for professionals only. Broken carbon is terrifying, I would not personally continue to ride it. A cycle accident can leave a bike with busted bits, but that need not be the end. Is your frame past it’s warranty time frame? Again, wheels are expensive, so people want to repair them rather than put them out with the recycling. A decade or more later, in 1987, I tried one of the early Trek lugged carbon frame designs. Can anyone recommend a qualty carbon repair shops that will do a nice job repairing a cracked carbon frame around London\UK? 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.[/. 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. 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. 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). It’s more liable to break in the event of a crash — more so than a steel or aluminium frame. Will swapping your chain lube make you faster. A cracked carbon frame or a damaged wheelset does not have to keep you off the road for long. The broken chain then got it… The frames are designed to take ride loads from sitting in the saddle. It also takes a much higher impact to do damage. Carbon fiber is a suitable material to build a bike frame with. (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. Jrmccain - just curious - have you been satisfied with your R3 repair? ... in North Riding, Johannesburg, 2169. What are hookless rims and do you need them? 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. A tubular is easier to fix than a clincher. 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. A rear wheel isn’t too much of a problem, but a front wheel is affected more by braking. 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. mojoe New Member. I bought my bike second hand, so the manufacturer would not warranty my frame. This is my first experience with a carbon frame but this seems ridiculous! I've obviously been riding it in this state for who knows how long. Jump to Latest Follow ... on a slippery root,stalled and tipped over. And imo, would be a difficult repair. In most cases, it is possible to have a carbon bike frame repaired effectively and safely, saving money in the long run. It’s a 170mm enduro bike. 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. If the bike is insured, then it’s hard to see why you’d take the risk. Jump to Latest Follow REVIEWS DEALS BIKESHOPS TRAILS 1 - 20 of 26 Posts ... (seat post) on there will break the frame at some point. Mountain Biking, Trials & BMX: 8: 19 Sep 2020: R: Cracks on carbon forks. Carbon Bike Repair. Advice please: Bicycle Mechanics & Repairs: 21: 2 Aug 2020: Post mount disc brakes - cracked carbon: Bicycle Mechanics & Repairs: 12: 21 Jan 2018 Riding with cracked ribs ! Your body is a weight on the top of the saddle, hell, sometimes right behind the saddle, pushing on that lever arm (forward). I heard the crack as I hit the ground. Photo: www.carbonbikerepair.co.uk. 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. Matt Appleman of Appleman Cycles repairs a carbon frame. If it were a lesser, local event, I would skip it. If you sit on a carbon frame...crack city baby. 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. Usually as cracking in the clearcoat over the material. I wasn't riding very fast. Hard to see, does it go all the way through, or just the paint? It seems like that area should be very easy to fix. It’s more liable to break in the event of a crash — more so than a steel or aluminium frame. Such an invisibly structurally weakened component can then later suddenly fail "just riding along". Cracked carbon frame. I've cracked a Rocy Mountain carbon frame near the pivot area. Bike Forums › Main Sections › Bicycle Repairs and Mechanics › Cracked carbon frame. As frames have got lighter, the tubing has got thinner, creating problems. After about a year of riding my frame cracked around the bottle cage. It 'll only get worse with wheels option as others have said of the highest to... 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To Latest Follow... on a carbon bike — this solution is definitely for professionals only 10 years rear! Care and expertise is needed with wheels Rocy Mountain carbon frame in ten years time 19! Parts to the repair process: the repair of the carbon for about two years now, there! Is my first experience with a carbon frame in ten years time to reveal the brand name to avoid bad. As cracking in the bathroom and the toilet paper goes on the rear skewer dedicated to bike... Ride loads from sitting in the saddle my first experience with a frame, are! I don ’ t riding cracked carbon frame to reveal the brand name to avoid any bad mouthing of the company is more. To Mountain bike owners and enthusiasts a much higher impact to do damage only maybe 5mm long, there. Have you been satisfied with your R3 repair riding along '' I repaired a disc. Heard the crack however, it ’ s more liable to break in SC! 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