DonRoberto Posted June 14, 2023 Share Posted June 14, 2023 What's up with the clacking noise that my new KS-S18 has started to make lately as if part of the wheel is hitting the housing? Although I doubt that is the reason since it only happens when riding, not when the wheel is free spinning. I think lately I saw someone post a video where you could hear his make the same noise. In my case, it often subsides a little or completely after riding for awhile or after remounting. But mostly it is persistent. I can tune it out by blasting my music, but it's very annoying when I am just want to go for a quiet, peaceful ride. Quote Link to comment Share on other sites More sharing options...
Funky Posted June 14, 2023 Share Posted June 14, 2023 (edited) Some questions... Is it making that "noise" once per circle? Like a heart beat? You go faster - noise faster? (If it starts happening more often as you go faster.. I may have an idea.) Is it happening riding both ways? When you turn wheels "ASS/spring" in front and then ride, it also makes the noise? Or only when "ASS/spring" is in back position? (Riding wheel forwards/backwards.) Is noise happening only when you are turning left/right? Or both ways? Or when going straight? (If it's happening only while turning, i may have an idea.) GIVE US MORE INFO..... Edited June 14, 2023 by Funky 1 1 Quote Link to comment Share on other sites More sharing options...
bpong Posted June 14, 2023 Share Posted June 14, 2023 yep, you gotta give the forum more details to your wheels' malady. the sound could be the result of a more serious and dangerous problem or it could be something that you can ignore. but more than likely, its something you cannot ignore. provide more details in your next posting please,... Quote Link to comment Share on other sites More sharing options...
Funky Posted June 14, 2023 Share Posted June 14, 2023 (edited) Anyways.. Check your VALVE stem. My wheel also started to make a "tuk-tuk-tuk" annoying noise one day. For 2 WEEKS i couldn't find the culprit. I even dismantled whole wheel.... More thinking and such.. My noise was happening only while turning right. And once tire has done full circle. My VALVE was coming out right side. And as my tire touched the ground it got suppressed under my weight. And when tire left the ground/valve area - the VALVE would spring back somehow. And make that "TUK" noise. The rim had 1-2mm gap where valve comes out of rim hole. It was enough space to make a noise, as it would move around. I simply used some HEAT SHRINKS over the valve stem and it stopped making that noise.. Who would ever think that the 1-2mm gap in rim hole, where valve comes out would be the culprit. Edited June 14, 2023 by Funky Quote Link to comment Share on other sites More sharing options...
DonRoberto Posted June 15, 2023 Author Share Posted June 15, 2023 Thanks for all the feedback. What makes this even more of a mystery is that it is not a constant. On my ride today, it made no clacking sound at all. There is some variable that is unaccounted for such as heat perhaps. Today was much cooler than it was on my last ride. Funky's experience does sound like a plausible one. Quote Link to comment Share on other sites More sharing options...
mrelwood Posted June 15, 2023 Share Posted June 15, 2023 What would help us enormously in hunting the issue would be a video of you riding your wheel with the sound that’s the issue atm. Quote Link to comment Share on other sites More sharing options...
Patrick Robert Posted June 15, 2023 Share Posted June 15, 2023 Mine makes a "knocking" sound when I ride, but not every time. Comes and goes. Started to notice this after I changed the stock tire for a TR1. A couple of small "spacers" (flat round metal donuts) came off, and I didn't put them back in as I didn't know where they went. Turns out they go on top of the axle, on both sides. One is slightly thicker than the other, so I'm thinking of putting it on the left side, where most of the noise seems to come from. Haven't reinstalled them yet, the S18 is a bit of a pain to disassemble and put back together. Will update when done. Quote Link to comment Share on other sites More sharing options...
mrelwood Posted June 16, 2023 Share Posted June 16, 2023 12 hours ago, Patrick Robert said: One is slightly thicker than the other, so I'm thinking of putting it on the left side, where most of the noise seems to come from. It could be that the thicker pile should go on the right side instead, so that it might tilt the shell more to the left to give more room at the left side of the tire/motor. Best check the alignment before putting the wheel back together. Quote Link to comment Share on other sites More sharing options...
DonRoberto Posted June 16, 2023 Author Share Posted June 16, 2023 I'm not sure that a video would help diagnose the problem, but I'll try to get a recording anyway. I discovered yesterday that it will make that clacking/knocking/tapping sound even when trollying. I was hoping that this was a known issue with the S18 so that the answer wouldn't depend on speculation and forensics based on my description, even with a recording. Quote Link to comment Share on other sites More sharing options...
mrelwood Posted June 16, 2023 Share Posted June 16, 2023 2 hours ago, DonRoberto said: I'm not sure that a video would help diagnose the problem Words are lousy in describing the exact nature of a sound, especially if it’s a new one for the listener. Minor aspects of the sound and when it comes can reveal the actual reason, or at least point in the right direction. Quote Link to comment Share on other sites More sharing options...
DonRoberto Posted June 24, 2023 Author Share Posted June 24, 2023 I finally got around to recording the sound described. Here it is when powered on and trolleying and when powered off and lying on its side (either side). clacking-2.mp4 Quote Link to comment Share on other sites More sharing options...
DonRoberto Posted June 24, 2023 Author Share Posted June 24, 2023 On 6/15/2023 at 3:16 AM, mrelwood said: What would help us enormously in hunting the issue would be a video of you riding your wheel with the sound that’s the issue atm. As the situation has developed, it clacks whether riding or not. clacking-2.mp4 Quote Link to comment Share on other sites More sharing options...
fbhb Posted June 24, 2023 Share Posted June 24, 2023 4 minutes ago, DonRoberto said: As the situation has developed, it clacks whether riding or not. Sounds like the click is once per revolution, so it could be your tyre valve catching in one spot? 1 Quote Link to comment Share on other sites More sharing options...
DonRoberto Posted June 24, 2023 Author Share Posted June 24, 2023 6 hours ago, fbhb said: Sounds like the click is once per revolution, so it could be your tyre valve catching in one spot? That is the popular theory, but there is nothing unusual about the valve's placement. It's exactly in the same state as it was for the first 200 miles before the sound first started. It is also very intermittent. Some days it is not there, some days it is. Sometimes it is absent for the first hour and then is there for the next hour. Sometimes it only happens when turning or veering left and absent when turning or veering right. Quote Link to comment Share on other sites More sharing options...
fbhb Posted June 24, 2023 Share Posted June 24, 2023 (edited) OK, if it's not the valve then my next best guess would be the bearing on one side (as your S18 has a hollow bore motor and could be suffering like the S22 bearing seating/misalignment issue). You may be able to do the rubber "mallet fix" with the motor in situ or it may need to be removed if access on the S18 does not allow. This sometimes fixes the issue, but the motor will have to be removed and stripped to fix the bearings in place with "Bearing Fit" Loctite if this fix only gives temporary results: Edited June 24, 2023 by fbhb 2 Quote Link to comment Share on other sites More sharing options...
mrelwood Posted June 24, 2023 Share Posted June 24, 2023 12 hours ago, DonRoberto said: I finally got around to recording the sound described. Yes, that is a so called bearing knock. The rubber mallet trick above may help, but if it doesn’t, re-aligning the bearings is needed. It’s a bit laborious, but doable if you have good instructions. Wouldn’t hurt to regrease the bearings as well while you’re at it. Quote Link to comment Share on other sites More sharing options...
Funky Posted June 26, 2023 Share Posted June 26, 2023 (edited) 2 hours ago, mannubahti95 said: And when tire left the ground/valve area - the VALVE would spring back somehow. And make that "TUK" noise. The rim had 1-2mm gap where valve comes out of rim hole. It was enough space to make a noise, as it would move around. I simply used some HEAT SHRINKS over the valve stem and it stopped making that noise.. Sounds familiar.. Am i in cave? Halo. Haloo. - Halooo.. - Haloooo... But in his case, the sounds is happening also while not riding. Wheel being sideways.. He has the bearing problem. Edited June 26, 2023 by Funky 1 1 Quote Link to comment Share on other sites More sharing options...
Drunkard Posted June 27, 2023 Share Posted June 27, 2023 Had a very similar knock on the V10F. Found that one bearing was a bit loose and had some play on the axel. Took it off and made a bit of roughness on the axel where the bearing sits. Actually i think we made it to rough as we had troubled putting back on.. But that + bearing glue fixed the problem real good. 1 1 Quote Link to comment Share on other sites More sharing options...
OldFartRides Posted June 28, 2023 Share Posted June 28, 2023 I didn’t know the newer s18’s had hollow bore motor. Huh. I went to Ewheels website, didn’t see it mentioned. But I did see a comment from an unhappy buyer about suspension assembly issues (still). Quote Link to comment Share on other sites More sharing options...
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