Tick tick!

[Zimmerframe]

Tried everything beleive me always so small need to magnify to confirm it is a tick . Usually feel it rather than see it .

Yup, they're evil when they're that small. Karate Chop !

 

[Zimmerframe]

You could well be right Gary

Oh christ no .. don't say that. He's already the most attractive person on the forum, don't promote him to "genius" status at the same time.

 

[Mikerb]

Oh christ no .. don't say that. He's already the most attractive person on the forum, don't promote him to "genius" status at the same time.

Happy to give credit where its due. The sensor is not something I had considered other than checking the magnet was not hitting anything. I would be interested to know if anyone else has experienced a noisy sensor.

 

[Zimmerframe]

Happy to give credit where its due. The sensor is not something I had considered other than checking the magnet was not hitting anything. I would be interested to know if anyone else has experienced a noisy sensor.

I tried a custom hall effect electro magnet on mine running at 20,000v to overcome the 25kph limit .. it made more of a BANG than a tick.

Didn't work either.

 

[ryturn]

hi. describing a sound with words isn't easy, but for what it's worth, only yesterday I laid my ht levo on a grassy bank and on continuing the ride it had developed an annoying "clicking" on rotation of the pedals. On turning the bike upside down and rotating the cranks I happened to notice that the chain guide had moved slightly downwards allowing the head of the chainring bolts to clip it on passing, this sounds like the sort of thing that you would have noticed quite easily, but I thought I'd share it just in case.

we keep getting bits of rock in the chain guide , happens a lot easy fix ...get the rock out

 

[Mikerb]

we keep getting bits of rock in the chain guide , happens a lot easy fix ...get the rock out

I have checked that

 

[Mikerb]

This is the noise....note the position of the Roval decal on the wheel. Does not matter what gear I use and regardless of what position the wheel is in each time I ride the noise always happens with that decal at the bottom of the wheel.

 

[Konanige]

Have you tried changing the tyre yet? Sounds like something in the tread to me.

 

[Zimmerframe]

grasping at straws .. have you tried temporarily taking your brake pads out ?

 

[Mikerb]

Have you tried changing the tyre yet? Sounds like something in the tread to me.

There is nothing visible in the tyre. I have deflated it and whilst keeping the bead engaged but not removed it yet.

 

[ebikerider]

Chain quick link hitting on the chain guard...or you have a squeaking wooden leg.

 

[Mikerb]

I changed the chain....and Both legs still work OK

 

[RCDallas]

Ok, went down and spent 10 minutes looking at my wheel and imagining what could make a sound like that. I believe Gary is right thinking it has something to do with the magnet. I would remove the magnet to make sure it is held firmly by the aluminum holder. To me it sounds like the magnet moves out when passing the sensor then moves back to the brake rotors once it's passed the sensor. Or the sensor is moving.

 

[Mikerb]

Yes that does make sense. Not sure it is clear on the video but the sound does consist 2 "ticks" a bit like quickly flicking a light switch on and off. I may try putting a drop of superglue on the edge of magnet to make sure it does not move in its holder.

 

[deksawyer]

I think you mentioned earlier that you couldn't replicate the noise when on the workshop stand? If that's the case, why isn't the magnet making the noise then?

 

[RCDallas]

OK, If your magnet and sensor are both tight and not moving then I have another troublshooting check for you to narrow down whether the magnet or possibly the rotor have anything to do with it. Try moving the magnet 180deg without moving the rotor in relation to the rim/hub, and see if the tick remains in the same location with respect of the decal to the ground. If it is in the same place then try rotating the rotor 180deg and check again. if the sound moves with either then its related to that part. I do have a thought pertaining to the rotor/caliper but will hold off on that for now. If neither test change the noise then will have to think some more....

 

[Mikerb]

I think you mentioned earlier that you couldn't replicate the noise when on the workshop stand? If that's the case, why isn't the magnet making the noise then?

The only difference is compression of the suspension when I am sat aboard. Although I have not dismissed the magnet in some way being the cause.....and I have made sure it does not movevinside its holder.....I do wonder if it possible for a tyre to make that noise.

 

[RCDallas]

Tire off, rotate 180deg, back on and check....

 

[Mikerb]

OK, If your magnet and sensor are both tight and not moving then I have another troublshooting check for you to narrow down whether the magnet or possibly the rotor have anything to do with it. Try moving the magnet 180deg without moving the rotor in relation to the rim/hub, and see if the tick remains in the same location with respect of the decal to the ground. If it is in the same place then try rotating the rotor 180deg and check again. if the sound moves with either then its related to that part. I do have a thought pertaining to the rotor/caliper but will hold off on that for now. If neither test change the noise then will have to think some more....

Thanks for your thoughts. To state the obvious there is no noise without a cause so I have some doubts about the magnet being the cause because it is secure in its housing and I checked it does not hit the nearest part of the frame...the rear of the chainstay...with me sat on the bike. I dont think there are any moving parts in the sensor itself. I have checked the rotor is true watching carefully as it runs through the brake pads. The rotor was removed when I replaced the hub bearing and replaced with the correct torque. It is unlikely I replaced it in the same position as it was originally but the magnet was replaced in the same location on the rotor simply because the magnet kept one side in place when the bolts were removed. I havevalso removed the caliper and cleaned it. Must admit I am now suspecting some issue with the tyre.

 

[deksawyer]

It's all pointing to the tyre for me right now, and hard to say why, but it's difficult to diagnose using an internet forum.

 

[babarnicle]

FYI. Not sure if this is related to your case or not.
I developed a tick on the front wheel somewhere. One tick per revolution. I checked the obvious: brakes, spokes, etc. I identified that the tick happens when a specific location of the tire rolls on the ground. Tick only happens while riding. Does not happen on the stand.
I’m running tubeless. So I deflated the tire, unseated that section of tire from the bead. Then reseated the tire. Inflated to 5psi more than I normally do.
Tick was gone. So I’m guessing it was some sort of rubbing in the bead between tire and rim.

 

[RCDallas]

Right-on! Process of elimination...considering and rejecting each possible choice until only one is left. Moving the magnet and rotor as suggested would positively eliminate them from the list. Tire is the next logical choice however improbable it may seem....(Gary is going to post a Sherlock Holmes meme now!)

My, outside the box, thought on the rotor/caliper was related to the outer edge, diameter wise, of the rotor rubbing on the caliper body (not the pads since you had removed therefore eliminating them from being a possible problem) I checked my rotor and there is a slight difference in diameter, not due to the design, at one spot which could, in theory, contact the caliper if there was a discrepancy in the mounting of the caliper. Highly unlikely really unless it was assembled incorrectly or parts were out of spec. However this would most likely only show with weight on the axle. I'm sure you would have caught that so only wanted to mention as a last resort.

I had also considered a possible break in the weld of the rim as well as possible over sized spoke ends contacting the inner wall of the rim (highly unlikely), both of which could be related to weight on the bike and undetectable while in the stand.

Keep at it...It will end up being the last thing you check!

 

[Mikerb]

FYI. Not sure if this is related to your case or not.
I developed a tick on the front wheel somewhere. One tick per revolution. I checked the obvious: brakes, spokes, etc. I identified that the tick happens when a specific location of the tire rolls on the ground. Tick only happens while riding. Does not happen on the stand.
I’m running tubeless. So I deflated the tire, unseated that section of tire from the bead. Then reseated the tire. Inflated to 5psi more than I normally do.
Tick was gone. So I’m guessing it was some sort of rubbing in the bead between tire and rim.

Wow! I have deflated the tyre but did not disturb the bead so that is definitely a good next step for me. I was going to put a new tyre on but doing the same as you did is a quick check.

 

[KennyB]

Right-on!
Keep at it...It will end up being the last thing you check!

Always is, no point keeping checking once you've found it --- Billy Connolly

 

[Mikerb]

Eureka

 

[Mikerb]

Rim tape was folded under at the bead across the length of part of the rim where the Roval decal is. Undid that fold under and refitted the tyre tubeless.
Silence is Golden.

 

[babarnicle]

Rim tape was folded under at the bead across the length of part of the rim where the Roval decal is. Undid that fold under and refitted the tyre tubeless.
Silence is Golden.

Glad you found the tick. For tubeless, I have found it much more reliable to use a tubeless rim Tape like Stans rather than the plastic rim strips that come with the rims. The tape seals much better for keeping overall pressure consistent. Cheers.

 

[Gary]

Ha pea 4 ya

 

[Mikerb]

Glad you found the tick. For tubeless, I have found it much more reliable to use a tubeless rim Tape like Stans rather than the plastic rim strips that come with the rims. The tape seals much better for keeping overall pressure consistent. Cheers.

This is the tape put on by Spesh as standard to make the rims tubeless ready. Im not sure if it has always been like that (with that fold) or whether it got pushed like that when mounting the tire when I went tubeless. A lengthy search for a solution but everything I did to the bike was useful maintenance so not wasted....it also absorbed a lot of "lockdown" hours. Grateful to evrryone for their suggestions and help.

 

[Hobi]

Is it a same sound as this? It is really loud and the bike is new.