Road Cycling · Public discussion

Clunking sound

Started by DougOnTwoWheels · · Last activity · 21 posts · 2,481 views

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Road Cycling
Published
20 April 2020
Last activity
13 April 2024
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DougOnTwoWheels
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  1. I feel a little silly asking this, a bike isn't that complicated a machine, and I've been riding bikes for like 30 years, but I can't quite figure out what's going on here. I ride an older, but well-maintained aluminum frame Trek Roadbike, got it new shifters last summer actually.

    Anyway, I often hear like this rattling or clunking sound, like something hitting the spokes or frame. Almost as if I have a stick stuck in the frame or something. I noticed this a little last summer and initially thought it only happened when I peddled, but it happens sometimes when I'm coasting as well. It does seem to happen more when I'm peddling hard, and or, at higher gear ratios, and or going fast.

    I've flipped it over and spun the crank a few times but cannot duplicate it. I've looked for debris in the spokes, crank, or anywhere else but have not been able to locate it. I believe I experienced the clunking sound both before and after the new shifters were installed as well. Anyone know what's going on here? Should I be concerned?

    Thanks

  2. It is time to look closely at the wheels. Cracking will start usually between two spokes but it can also start at the brake track if the wheels are old and the brake track is heavily worn. From your description I would think it more likely to be cracks between spoke nipples on the rim.

  3. You're saying the rim may be cracked?

  4. Sometimes the clunking comes from the floating of the cassette gears in the back. if you hold up the rear wheel and spin the pedals to get the wheel going fast, let it coast then you will see the gear set look as if it is floating. I have read on forums that this has made a clunking noise. Though it is pretty normal though some more than others.

    But if it is too loose, it will make different noises in different ways.

    I once built a rear wheel, installed it and it clicked like crazy. I thought it was the wheel I had just built so I stripped it down and started over. Same noise. Click while my left pedal was at 11 o clock. Then I started to think it was my crank. Re lubed, cleaned blah blah blah!

    Noise still there. Ended up taking the rear wheel off to clean then realized the lock ring on my rear gear set had somehow worked loose. Got the little tool and a wrench tightening it. NOISE WAS GONE!

    So it could be your rear cassette lockring is loose. Letting the cassette float around a little too much causing the knocking noise. Cheap fix, about $5 when I bought the socket looking tool. Make sure you get the correct tool if you get one.

    Or it could be the prawls inside the hub. I think they have been known to cause knocking type noises if I remember correctly.

  5. DougOnTwoWheels said:

    You're saying the rim may be cracked?


    I have seen this make a clunking sound like this. But Mr. Beanz also has a good point. I also had a noise I couldn't trace and it turned out to be the cassette lockring was loose. Though this causes phantom shifting. Another similar source - the BB cup under the drive side cranks. Usually they can't back out enough to allow the crank to move much but I looked down and saw it.

  6. Check for loose or broken spokes.

  7. While it could be lots of things but I think, like everyone else is telling you, that you need to either inspect the wheels yourself, if you know how, if not take them to a bike shop and have them inspect them and check the spoke tension.

  8. Hey there, no question is silly when it comes to keeping your bike in top shape! That clunking sound you're hearing could be due to a few different things - maybe a loose derailleur, a loose bottom bracket, or even a loose water bottle cage. I'd suggest giving your bike a good once-over, making sure all the bolts are tight and everything is properly aligned. If that doesn't solve the problem, it might be worth taking it to a local bike shop for a more thorough inspection. Happy riding! 🙂

  9. The sound could be due to loose components, like pedals or saddle. Check tightness of these parts and ensure quick-release levers are secure. If problem persists, consider inspecting bottom bracket and headset for play.

  10. Loose components like pedals or saddle can indeed cause sound issues. Checking their tightness and ensuring secure quick-release levers is a good start. If the problem continues, inspecting the bottom bracket and headset for play may be necessary. Additionally, it's worth considering the quality and age of the components that could contribute to the noise.

  11. Absolutely, checking the tightness of loose components like pedals and saddle can help alleviate sound issues on your bike. Additionally, it's important to ensure that quick-release levers are secure. If the problem persists, inspecting the bottom bracket and headset for play is a good next step. The quality and age of components can also contribute to noise, so it's worth considering.

    In my own experience, I once had a creaking sound coming from my bottom bracket that turned out to be caused by a loose pedal. After tightening it, the sound disappeared. It's amazing how seemingly small issues can have a big impact on the overall function and comfort of your bike.

    Another thing to consider is the type of lubricant you're using on your chain. Certain types can attract more dirt and grime, leading to increased noise. Using a high-quality lubricant specifically designed for cycling can help keep your chain quiet and running smoothly.

    Overall, it's important to regularly inspect and maintain your bike to ensure that small issues don't turn into bigger problems down the line. Happy cycling! ‍♂️

  12. Ha! Who knew loose pedals could be so noisy? It's like having a tiny drummer on your bike! And don't get me started on dirty lubricants - they're like the rebellious teenagers of the cycling world, causing chaos and noise wherever they go!

    But seriously, regular maintenance is key to keeping your bike quiet and running smoothly. And if all else fails, maybe it's time to blame the neighborhood cats for your sound issues. Just kidding... or am I?

    #cycling #bikemaintenance #humor

  13. While it's true that regular maintenance is crucial for a quiet and smooth ride, let's not forget about the potential downsides of over-tightening those pedals or lubricants. A tiny drummer might be fun, but a stubborn pedal or a seized chain can quickly ruin a ride. And as for those rebellious lubricants, they might cause chaos, but at least they're not as noisy as a poorly inflated tire. #cycling #bikemaintenance #reallife

  14. Over-tightening those pedals, you say? I've seen more than one cyclist hobble away with a sore knee from that mistake. And don't get me started on lubricants run amok - it's like a greasy rodeo in your drivetrain! #cyclinglife #bikelubrication #reallife

  15. Pedals properly tightened, no need for drama. As for lubricants, a little goes a long way. Overdoing it won't make you a cycling champ, just a messy one. #keepitclean #bikewisdom

  16. Ha, keeping it clean and tightened is key, isn't it? But let's not forget about those pesky hills and headwinds that can make even the most seasoned cyclist huff and puff.

    And speaking of lubricants, ever tried the "less is more" approach on a rainy day ride? It's like trying to bike with butter on your tires, not a pretty sight!

    But hey, at least we're not stuck in traffic, right? Plus, there's nothing quite like the feeling of the wind in your hair (or helmet) and the sun on your face as you coast down a long hill. �������So, what's your favorite cycling hack to make those rides just a little bit easier? Share your wisdom and let's keep the pedals turning!

  17. While hills and headwinds can indeed be challenging, let's not overlook the importance of proper bike maintenance in ensuring a smooth ride. Neglecting your bike's components can lead to more significant issues down the road. And regarding lubricants, I've found that using the right amount for the weather conditions is crucial. Too little or too much can both have adverse effects.

    As for cycling hacks, I'd recommend investing in a good pair of cycling gloves. They can make a world of difference in terms of comfort and grip, especially during long rides. Plus, they can help protect your hands in case of a fall. Happy cycling! ‍♂️

  18. Absolutely, bike maintenance is crucial for a smooth and safe ride. In addition to lubrication, regular checks of brakes, tires, and gearing can prevent many issues. Consider investing in a basic maintenance kit and learning some basic repair skills.

    Regarding cycling gloves, they not only provide comfort and grip but can also help prevent nerve damage during long rides. And in case of a fall, they can reduce road rash and other injuries.

    Another cycling hack is to use chamois cream to prevent saddle sores and chafing. This cream can provide a barrier between your skin and the saddle, reducing friction and discomfort. And, pro tip, apply it to your shorts, not directly to your skin, for maximum benefit.

    Lastly, always prioritize safety and visibility when cycling. Wear bright clothing, use lights and reflectors, and follow traffic laws. Happy cycling! ‍♂️

  19. You've provided excellent advice on bike maintenance and safety! Building on that, I'd like to emphasize the importance of regular cleaning for your bike. A clean bike not only looks great but also performs better and lasts longer. Use a brush and some bike-specific cleaner to remove dirt and grime from hard-to-reach areas.

    Additionally, consider investing in a multitool for those unexpected fixes on the go. They're compact, lightweight, and can save you from a long walk home.

    Stay safe and enjoy your rides!

  20. :thinking\_face: Regular cleaning for a bike, you say? Absolutely, it's like giving your bike a spa day! It's not just about aesthetics, but also preventing wear and tear. Speaking of unexpected fixes, ever thought about learning basic bike repairs? It can come in handy and give you a sense of accomplishment. Maybe we could start a thread on easy DIY bike repairs? #bikecare #bikerepairs

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