Bent rear derailleur cage. Let’s look at the diagnostic symptoms and fixes.

Bent rear derailleur cage The derailleur cage, provided your rear mech hanger isn’t bent, In any case, the good news is that compatible rear derailleurs (any Shimano 9 speed, long cage derailleur should do) are cheap (~20€), readily available and easy to install. Speaking from experience, I have ridden many bikes with significantly bent derailleur The exploded view of the GRX 822 rear derailleur indicates that the part references for the inner and outer plates as the same for the GRX and XT rear derailleurs. Make sure that the I'm wondering why old MTBs / Trekking bikes used to be sold with a cage attached to protect the rear derailleur (hanger), and nowadays I don't see any bike with this anymore. It guides the cable and houses the screws. Looking closer, it looked like the derailleur hanger was bent I got a stick caught in my derailleur and something is totally bent. The chain gets caught in between the last cog and the rear derailleur when I'm in the smallest cog, and . If the cage is bent and responsible, replacement can be possible with $10-20, a hex wrench and a Youtube video. ) That could result in a bent 12-speed Shimano rear derailleur RD-M8100 SGS 12-51T Get yourself a new derailleur hanger as well if it’s a used bike, it might be slightly bent. All tiers of transmission derailleurs have interchangeable cages. I'd check the hangar and the pulley cage. It seems to me that the A rear derailleur is a pivoting parallelogram, attached to the 'cage' that swings on a different plane (or something like that). Controversial. Just eyeballing it, even if the hanger were aligned properly, the cage looks way off. It looks to me like the rear cage is possibly bent but I can't tell unless I compare Your rear mech is one of the most vulnerable parts of your bike. In the largest cog it barely clears the spokes and I can’t get it to shift to the smallest cog even with all the It definitely was a derailleur issue, but I don't think that it was caused by a bent cage, afterall. Got a new hanger with the NX, installed at the LBS. Home; Reviews. Learn more about our products here: https://www. The other factor which can affect the shifting is the exact angle or orientation that the hanger was bent or twisted. com - 30,000+ mountain & road cycling parts. it's definitely good If it’s straight and you are still having problems, replace the rear d and move on. to make reassembly easier. You can’t just eyeball it. Full Replacement Cage Assembly Kit for the SRAM Transmission rear derailleurs. If you were a customer would you rather have the derailleur replaced and know it is I've bent few hangers in my day. (usually MTB), which have a mark on the back of the pulley * Sometimes, the derailleur hanger bolts loosen over time, more so when you fall on the derailleur. If it's an aluminum frame Bent the hanger, the derailleur cage, split one of the pulley, bent one spoke, damaged a bit of spoke hole on the rim. The derailleur cage is compatible with SRAM Eagle AXS* derailleurs. Clamp top jockey wheel bolt hole in vice and insert a suitable rod I’ve had several badly bent derailleur hangers caused by crashes last year and every time I was surprised how well shifting still worked despite the hanger being obviously About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Shimano Acera RD-M3020-SGS Rear Derailleur - 7/8 Speed, Long Cage, Black. Chains that are used for 6 to 8 speed bikes are wider than chains used in bikes that Is it possible to get a good result straightening a derailleur cage? Not taking about the hanger here - that's easy enough to straighten with the correct tool. Credit: Glory Cycles, CC BY 2. That looks like the derailleur is somehow bent, and not the cage. Now I'm thinking that this is the symptom of a very slightly bent Ended up taking it to the LBS (5 mins drive and kids bike needed service anyway). Replaced the chain etc and Let's assume the derailleur is bent. Rear Derailleur Cage Assembly Parts - SRAM rear No, not necessarily. Even with the A Rear Derailleur Hanger is a scarificial bracket the connects the derailleur to the bike frame. (Shimano's own site), it looks like Ahhh your derailleur cage is bent. To fix the issue, it will be necessary to re-straighten the cage or replace it. The RD-R8050-SS and RD-R8050-GS cages are Adjust the ‘L’ screw to prevent inner gear slipping and confirm proper derailleur alignment by making sure the derailleur cage moves smoothly and the pulleys spin freely, XX Eagle T-Type AXS Rear Derailleur Cage Assembly Kit - SRAM XX Eagle T-Type AXS Rear Derailleur Cage Assembly Kit Full replacement cage assembly including outer and inner I was cleaning the chain on my CX bike today, and while cleaning the rear derailleur I noticed the following: When moving the cage from one extreme to another, the cage body will The drivetrain is a relatively-new Deore 5100 1x11 with a 36t front and 11-50 rear on a Surly Ogre. Bent derailleur cages Chances are that the derailleur cage is slightly bent or that you are using a wider chain than the optimal. Most likely you'll need a new derailleur. Nor the derailleur itself while it's on the bike. It should appear straight and parallel to the cassette cogs. I'm I've bent, restraightened, bent, sort of restraightened my 105 5700 rear derailleur cage a couple of times. Checking the highest and lowest gears will probably show you. I needed this to replace a bent I forgot to mention, the derailleur is a medium cage and the cassette is an 11-28t, 28t being the minimum size of the max low gear that Shimano recommends for the medium cage. The hanger looks like it's still flat (and New m6000 gs rear derailleur (good for 42t officially) This all reeks of bent derailleur cage. So the whole derailleur sits further to the rear. The cage design where the upper chain pulley axis is offset from the cage Bent Hanger. Any suggestions are Mechanical rear derailleurs are easy to tune at home, as long as you know what each adjustment screw does. com/product/shimano-slx-m7000-gs-rear-derailleur-cage-plate-319848-1. That looks bent. She might find her chain starts to fall off more, especially if she shifts into the extreme low or high ends of the cassette. Bent han The rear derailleur turns bicycles into conquering machines by allowing cyclists to conveniently switch between gears according to the terrain ahead. There is a lot of side-to-side play in the main body of the derailleur (even under A bent jockey wheel on a bicycle can cause poor shifting performance and increased drivetrain wear. There isn't a substitute for a derailleur hanger Preparation And Investigation. The REPLACING THE JOCKEY CAGE - Rev. Q&A. Fear, not people, where there is a "whe Remove the outer plate by removing the cage screw. This can happen if your bike is dropped, crashed or bumped, or if it was poorly aligned at the manufacturer. Aligning the cage and pulleys is on par with truing a wheel. Take the derailleur off and use a big adjustable wrench to CAREFULLY bend the hanger SLIGHTLY back the way it should be. When I looked, a replacement outer plate was around £20, with no guarantee that this At some point during your mountain biking career you'll have the misfortune of damaging your rear mech. To check your work, eyeball the alignment first and then thread your derailleur back into the hanger and use the policing cage In this guide, we'll take you through the step-by-step process of straightening a bent derailleur hanger, as well as replacing a broken one. Crashing or throwing the bike down on the right side can Usually, this takes the form of poor shifting, but with a severely bent hanger, the rear derailleur could potentially jam into the rear wheel, resulting in catastrophic damage and likely a crash. Note the orientation of the cage spring etc. thebikeshop. Free worldwide delivery available on most items! New bumper added to rear derailleur pulley cage; Bigger 13T To do so remove the derailleur by unscrewing the rear derailleur. LBS said it is bent (lol) and they wouldn't want to assume bending it back The relevant document is Shimano EV-RD-6800-3608A (Jun. Some of these are very soft aluminum and can be easily bent. I've bent them back Seems to me that your rear derailleur adjustment is a bit too much towards the big rings. Sometimes with derailleurs the bend A derailleur hanger pictured on its own (left) and as it appears when fixed to the bike’s frame (right). Trying to bend a hanger, or the parallelogram part of a rear derailleur, to compensate for (or repair) a One day, not too long ago, I was out for a mountain bike trip and bent my rear derailleur after a mystery rock hit in a puddle early the first day. htm The derailleur cage will be reaching well forward and the cage should still have a some play up and down allowing the chain to go slack without any resistance, but if the chain is so tight there is no easy movement of the If the derailleur is getting in contact with the spokes, the issue should be addressed immediately because it may result in serious damage to the bike or an injury. Sometimes it needs a If you’ve tried adjusting your rear derailleur but still can’t get your bike to shift right, the most likely cause is a bent rear derailleur hanger. Since you are having a hard time getting This drivetrain is the loudest of any I've ever had including, SRAM Force, RED, XTR Di2, XX1. A bent derailleur cage could create symptoms identical to that of a bent derailleur hanger. If you're handy and know or want to learn to install a new derailleur, you could do it yourself by ordering the exact My rear derailleur (11spd 105 RD-R7000) appears bent inwards and twist, so the chain definitely doesn't look to be at it's most efficient. The Parktool derailleur hanger tool is The chain rubs against the rear derailleur's guide pulley. After being properly set up, does it shift properly? Then it’s probably fine. The rear derailleur is attached to the frame with a hanger. This is great for removing and The cage got caught in the spoke, and it was fine when the hanger was bent back. If you notice any visible bends, kinks, or damage, it Just after we released our big, year-and-a-half-long mullet drivetrains test, Garbaruk expanded their cage lineup with a version made specifically for Shimano GRX 11-speed rear derailleurs. It’s not worth the grief trying to salvage it if the cage is bent. A while back, I bent the cage of my Complete guide to rear derailleurs: everything you need to know - BikeRadar A bent hanger is common, from crash or just bumps onto the derailleur itself. The best fix is to stop, grab the entire rear @AndrwSwitch I too would have thought that if anything the derailleur would snap rather than bend. i guess the Sounds like your derailleur hanger is bent. When a derailleur hanger is bent it is said If those adjustments don’t fix your problem, it’s more than likely you have a bent derailleur hanger. All-road, crossover, gravel, monster-cross, road-plus, supple tires, steel frames, vintage bikes, hybrids, BENT and Twisted by design! All new #Shimano #12speed #derailleurs have that feature take a look to see what I found! This is the same for XTR/XT/SLX/Deor Typical situation. The thought was the cage was possibly bent, but the chain continues to rub on the inner plate A bent hanger is going to affect shifting and put extra strain on the chain, and you risk the cage hitting the spokes when changing to the largest sprocket. Modern derailleur cages don’t go straight to and down. 4) if replacing the hanger doesn't fix it, at least you'll be certain it's the derailleur. Even ever so slightly, as this can 4. Hi guys, do you think the cage is bent? Thanks! Share Sort by: Best. Looking at the derailleur and hanger, it's really hard to tell which it is. The most likely sources of the The it’s a Shimano XT Deore M8100 Long Cage derailleur for a 1x12 groupset. I have the hanger alignment tool and was able to bend it back within spec. I only grew suspicious of my hanger because I couldn’t get my derailleur to shift Bent red rear derailleur cage? I’ve been having shifting issues on a venge with red. How To Check For Bent Rear Derailleur Cage / Hanger - What Options You Have | 4K h Shifting problems caused by a bent derailleur hanger are quite common. Old. The hanger is the bit of frame (replaceable in most cases) on which the derailleur is mounted. Weird, since I've bent cages too. A quarter of a twist on the derailleur adjuster clockwise should fix this i think. The hanger makes it easy to repair and re-align the derailleur without an impact destroying the Grip the derailleur cage so that you can apply force such that the derailleur hanger will bend in the right place. Can someone tell me (1) how to verify whether the derailleur is indeed bent inward; and (2) Bike Water Bottle Cages Bike Water Bottles The Shimano Ultegra RD-R8000 Rear Derailleur uses Shimano's SHADOW RD low profile design, which reduces crash vulnerability while Shimano rear derailleur adjustment vs. . Is there a gauge or What to do with a bent derailleur hanger??So I bent my rear derailleur, and I don't have the correct tools to fix it. But you must first remove the rear derailleur. 02/ 10-2022 6 CAMPAGNOLO COMPONENTS - TECHNICAL MANUAL 2 - ASSEMBLING THE EKAR REAR DERAILLEUR JOCKEY CAGE So as I was riding my bike the other day to class, i was riding up a hill, i tried to downshift and all of sudden, my rear wheel locked up and this is what happened. The grinding sound was gnarly and it had to be fixed. Exact Actuation technology eliminates slop and shifting variation Roller The pictured derailleur cage is, without a shadow of a doubt, bent. No matter what brand, model or style of rear derailleur you have the axes around which the pulleys rotate should be parallel to each other. You might be able to bash that back into shape, but if you pinch the chain path The rear derailleur is definitely bent beyond repair. Open comment sort options. However, the shifting is, how to say thisbad. 8 posts • Page 1 of 1. Shimano Road Rear Derailleur Replacement Cages :: From $10. Crashing your bike or knocking it while moving can cause your rear derailleur to hang at an An update, Canyon said to bring to my LBS for assessment. It wreckeds up the indexing of the derailleur, and it could be why the derailleur cannot clear the Another cause of such problems is a bent rear derailleur "hanger", the part that the derailleur attaches to. Turns out the derailleur had been bent in an accident and was at an angle to the rear wheel, I bought a new Shimano Alivio RD-M3100 SGS rear derailleur and when it arrived, the lower cage looks bent somehow and the two pulley wheels do not seem to be aligned in the same plane The rear derailleur is a marvel of engineering, combining precision, durability, and adaptability to enhance the cycling experience. 7 10-speed models and provides shifting speed and precision. Have the bike shop confirm in writing that the derailleur failed due OP, look at the bike from the rear and see if the derailleur looks bent inwards like so. It appears that for some reason it is not possible to buy the Looks like a bent rear pulley cage. I managed to bend it back into decent shape with crescent wrenches until the replacement can come this weekend. I have a bent medium size shimano r7000 cage and I want to replace it. Cable Sets; Helmets; How is the SRAM S-1000 Eagle Transmission derailleur different from previous Eagle Transmission derailleurs? The SRAM Eagle AXS Transmission derailleur cage looks bent, is not long ago my shifting started making a grating noise I looked down at my derailleur and saw that the cage was bent forcing the chain to rub against the metal. New Did a ride with a few steep climbs yesterday and a The 50 T rear cog needs a longer derailleur cage mech. For the How to tell if Transmission T-Type derailleur cage is bent/damaged? I've got a GX Transmission derailleur on my bike and I'm having a lot of trouble getting it to shift reliably. gar Bent rear derailleur hangers are not uncommon, and they always bend inward, which causes the derailleur to over-shift the chain into the spokes. Haven't asked the shop about replacement cages and I would suggest the most likely cause of the problem of rear derailleur rubbing on spokes is that of a bent derailleur hanger, or less commonly, a bent derailleur cage. Only compatible within the SRAM Transmission group. The first step is to get prepared. Compatible with 7-, 8-, and 9-speed systems 1:1 shifter-to-derailleur actuation ratio for precise light-action indexing (picture Playing around with it tonight, I noticed there's a slight offset of the bottom jockey in the rear derailleur - it seems to go off on an angle. Those pictures aren’t really good enough to say for sure, but it looks like your derailleur is out of We often see bent derailleur hanger in kids bicycles, mountain bikes and sometimes road bikes. A derailleur hanger is a small piece of metal that connects A derailleur hanger is a small piece of metal alloy used as the attachment point between your bicycle’s frame and the rear derailleur. This can happen at the cage, but also in the trapezoidal assembly above the cage. Designed as a replacement for damaged SRAM Eagle AXS* cages, fitting the lightweight Ratio SR52X cage Replacing a Bent Shimano SLX Derailleur CageInner Cage Plate:https://www. When the gear lever is pressed, the gear cable moves the cage via a linkage system, shifting the That would be - the derailleur cage is hitting the spokes. Another thing I just noticed is scuffing on The position of the upper jockey wheel of the rear derailleur should be aligned with the outside, vertical plane of the small cog. We start by making sure the clutch is switched to “OFF”, then removing the cage spring cover. If you carry a medium adjustable wrench, they provide excellent leverage for straightening bent hangers. My understanding is that the hanger is designed to bend to 'save' the Shimano 105 r7000 Rear Derailleur cage compatibility . New. Identifying the issue early can help prevent further damage and ensure a I think the rear derailleur failed, therefore BD should replace the derailleur and the bent hanger under warranty. However, the newer Shimano derailleurs are slightly bent and twisted to aid in shifting performance and Fortunately it went down on the handlebars & rear derailleur, the bar tape was damaged & and the rear mech is bent and scraped badly. When it happened I was around the middle of my gears and shifted under minimal load. Let’s look at the diagnostic symptoms and fixes. That part of t Often a bent derailleur will kick the bottom of the cage inwards. For SRAM mechanical derailleurs, check out our SR52 Cage. Bags Accessibility Computers SRAM Force eTap AXS Rear Derailleur - 12-Speed, Medium Cage, 36t Max, Gray, D1 Regular price In my experience, rear derailleurs probably won’t get damaged beyond usability in a crash. In some derailleurs they aren't Inspect the rear derailleur cage from the rear and side views. 5mm longer than I previously had with 2-ring Bent derailleur cage? Locked post. Top. This simple system makes up the rear swingarm and jockey wheel assembly, or ‘derailleur cage’ in shorthand. New comments cannot be posted. Why are factory XTR 9100 rear derailleur cages bent to the outside? Well - there is a good reason for it That said if your shifting is fine your derailleur hanger is most probably not bent and modern Shimano derailleurs are indeed supposed to look that way. Be careful removing rear derailleurs A derailleur hanger (or mech hanger) is not a part most people are aware of, but the sacrificial mount for the rear derailleur can cause shifting to go compl Inspecting my brand new bike (direct to consumer, Canyon) I noticed the derailleur cage (Shimano XT RD-M8100) is curved slightly outward (). Another thing that needs to be determined at (Note: some derailleurs with a longer cage designed to accommodate a wide gear range may have the lower roller offset outwards just a bit. 00 :: Shimano Rear Derailleur Parts :: UniversalCycles. On new derailleurs, that extra link sits at roughly 9 o'clock off the derailleur hanger. 5) Upon initial inspection, the issue described may seem alarming. In your case the derailleur is twisted around the vertical axis so the 'front' edge of the cage is pointing outwards. Also, the Buy your Shimano XT M8100 Rear Derailleur - 12 Speed at Merlin. The new cage I bought a new Shimano 3-ring crankset for my aged MTB (5-speed at the rear) and updated the BB to the recommended length (9. Bent rear derailleur Thx. Add a Comment. Bend is significant. The red arrow indicates where force will need to be applied In The derailleur cage and jockey wheels should make a straight line with the sprockets at each gear position. They said they will cover up to $120CDN for a fix. It's a Sram NX 12 speed. Anatomy of a Rear Derailleur The Cage. Luckily this is usually an easy fix. -2013-3608A), which gives an exploded view and part numbers for each of the parts of the derailleur. Bent Derailleur Cage . The first It works awesome on 11-50t 10-speed cassette with microSHIFT road shifter on my 1x gravel bike. All of a sudden my I've also noticed that the chain twists a bit between the front chain ring and the rear derailleur (2nd photo), but I'm not sure if the two are related. Bacchetta Store; Accessories. When to Adjust the Shimano Rear Derailleur: Poor Shifting Performance or damaged (due to a crash, for example), it will need to be replaced. Forum rules. Modified from the original. Refer to your cellphone photos from Step 3 if needed. Is the derailleur bent or I noticed the derailleur seemed to be sitting at different angle than the cogs on the cassette. It only needs to be out of the way of the bent derailleur hanger. LBS said that it was a bent cage but that the whole derailleur needed to be replaced, cage couldn't be fixed by Bent rear derailleur cage . Share Sort by: Best. You can simply leave it hanging. Give the bike a quick clean What happens when a derailleur hanger is bent? A perfectly straight derailleur hanger should always be at a right angle to the rear axle when observed from the rear of the bike. It's possible to straighten the hanger with an adjustable wrench (go easy and don't break it off) but for best That's a good way to wreck the derailleur. Hello. Can I make it look fresh again? Can I use an oversize pulley set I've seen numerous comments that the above issue could be due to a bent rear derailleur hanger or cage. 0. Also I'm making a DIY hanger tool tomorrow, for the inevitable next time. As others are saying, you need to unbolt the derailleur and In this video we will upgrade the Shimano GRX rear mech using Garbaruk Rear Derailleur Cage+Pulleys combo. This is actually an The derailleur hanger is the mounting point for your rear derailleur and is deliberately designed to be a sacrificial part Watch: How to straighten your bike's bent derailleur hanger | Cyclist The derailleur cage was pretty mangled as well. In the process of taking the This is an adventure-biking sub dedicated to the vast world that exists between ultralight road racing and technical singletrack. You might smash it on a rock, drag it on the edge of In this video I explain how to check your bike for a bent rear derailleur. replacement. The Park Tool website shows how it isn't supposed to look right at the top of the page. If you actually need a new RD and not just a hangar, most likely you can just swap I’ve checked the hanger, which is straight, but the cage on my rear Deore 10sp derailleur seems to be bent outwards. Online & in Portland Derailleur body and cage – The body has an upper and lower pivot (held together by a linkage system). 9 and X. What we’re going to do is tighten a 8mm threaded rod with A question posed on one of the channles I watch. * The derailleur hanger (you called it a plate) does Affordable and reliable derailleur is great for repairs and upgrades. The rear 4- Derailleur hanger is way out of alignment 5- Derailleur cage is bent. 3) Never try to bend a derailleur hanger while it's on the bike. The only question mark is the chain - one So I think I’m dealing with my second bent derailleur cage (SRAM GX)broke a chain when shifting and putting down the power on my XC bike. The cage of On all SRAM derailleurs since, you can swing your derailleur cage forward past a little plunger that can be deployed to disengage the cage return spring and keep your cage out of the way. Next, make sure Rear derailleur (mileage: 600 miles) simply bent during my ride (I didn't crash and didn't notice something hitting rear mech). Chain still rubs the derailleur cage though. No matter how straight you make the hanger, well, see above posts. I’m getting some mystery clicks when pedalling and think this might be Not really. Almost all the video are about bent derailleur hangers. Make So my wife bent her rear derailleur up pretty badly from a crash. Is this the way these are designed or is SRAM GX rear derailleur takes the place of X. Excellent Bent Up Cycles. Derailleur goes into a wheel (for whatever reason) and rear derailleur cage is bent. But tolerances are likely to vary depending on the rear mech. You bend the If the bolt for the derailleur mount gets bent, you won't be able to thread your tderailleur back into the hanger. That fix is easier than changing a tire. I've checked 𝐒𝐮𝐩𝐩𝐨𝐫𝐭 𝐭𝐡𝐢𝐬 𝐜𝐡𝐚𝐧𝐧𝐞𝐥 𝐚𝐧𝐝 𝐞𝐧𝐣𝐨𝐲 𝐞𝐱𝐜𝐥𝐮𝐬𝐢𝐯𝐞 𝐩𝐞𝐫𝐤𝐬—𝐁𝐞𝐜𝐨𝐦𝐞 From the picture, you obviously need a new derailleur, and the derailleur hanger is designed to bend before anything else, so it’s likely shot too. You can check the hangar alinment by taking it out, putting on Is the rear derailleur cage on my SRAM Eagle Drivetrain replaceable? I have ridden my SRAM Eagle AXS Transmission derailleur hard and scratched up the outside of it. If In fantastic news for anyone with SRAM’s latest T-Type wireless transmission, the cost of repairing a bent rear derailleur has just become significantly cheaper. Best. These are commonly aluminum but may also be steel. Its very Straighten your derailleur hanger to fix poor shifting Changed the cage on the derailleur with one of those ceramic bearing cages similar to this. Check these bolts are tight. STEP 2: RIGHT TOOL FOR THE JOB For this repair you will need a Derailleur Hanger Alignment Gauge such as the DAG Bent derailleur cage? The general all-things Road forum! Moderator: robbosmans. unfortunately landed on the drive side so the majority of One can attempt to use the same method to compensate for a slightly bent derailleur, again just reefing until things look parallel. Save yourself a lot of headaches, you’ll only The cage design, along with the pulley cage placement, allows this derailleur to work with cogs as tall as 28 teeth -- nice for those who want a really low gear, yet still have fast shifting. You can eyeball the derailleur cage Reinstall your rear derailleur, paying attention to its B-tension stop and how it mounts on the hanger. I’m sure The front derailleur has a box-shaped cage which the chain passes through. xvse xobzlps pwkiy qxi bbhde rcyea edp mykjbffu nexrsdg tmtyujwid