clunk;clunk;clunk;clunk;clunk;clunk
- Thread starter dwaynev
- Start date
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If it ever comes down to this, tighten up the spokes. I had a bike where I'd always hear a clunk and it was from the spokes flexing & rubbing on each other where the spokes intersect. That's only when weight is forced down on the rear wheel so lift up the rear wheel and spin it to see if this is the case.
probably not the issue for you, but when i was a wee lad :? i'd drop my bike and slightly bend the one piece crank making them hit the frame (ever-so-slightly)click-click-click-click-click :wink:
The sprocket side inner bearing race might not be screwed tightly against the sprocket. Sometimes the hole in the sprocket is a bit larger than the drive nub on the crank and can move due to variance in pressure on the pedals.
4 bikes all doing the same thing?
The clunk from the sprocket being loose and hitting the crank nub would be when applying brakes and then pedaling forward. Or vice versa, I dont think it would lag enough at the top of the turn, and all 4 bikes the same would be pretty high odds.
Maybe the chainguards are making the noise whern the chain contacts them lightly because the sprockets don't track perfectly straight. Again all 4 having the same problem is strange. (If they have chainguards)
I would flip the bike over and watch as you turn the cranks, watching the chain and sprockets for contact, also the crankarms to see anything out of the ordinary, or if any bearings feel loose and need adjustment.
The clunk from the sprocket being loose and hitting the crank nub would be when applying brakes and then pedaling forward. Or vice versa, I dont think it would lag enough at the top of the turn, and all 4 bikes the same would be pretty high odds.
Maybe the chainguards are making the noise whern the chain contacts them lightly because the sprockets don't track perfectly straight. Again all 4 having the same problem is strange. (If they have chainguards)
I would flip the bike over and watch as you turn the cranks, watching the chain and sprockets for contact, also the crankarms to see anything out of the ordinary, or if any bearings feel loose and need adjustment.
Deorman is right I had one making that same noise and it drove me crazy. Changed bearings and races and nothing. It was the inner race wasnt tight and as the sprocket comes around it hits that part and clunks. Took it apart for the 5th time and really tightened that race and it stopped. On a 3 speed nexus the rear sprocket gets worn and will make the same clunk. You have to replace the back sprocket with one that is tighter on the three little dimples sticking out.
Thats weird on all four bikes.Maybe its your knees!haha,Do you have a spot in your chain where you joined the chain together?It may be too tight or rusted.It wont do it with a master link but when you shorten or add links it can happen.Also if you have a chainguard with designs pressed into it the sprocket could be a little loose and hitting the inside of that.
all four bikes the same noise? weird.
Did you check for loose screws between the handle bars and the saddle? :shock: :lol: I'm kidding of course. We used to make that joke al the time when I worked at a auto garage.
Let us know what it is. I think it's the bottom brackets. Do you ride through a lot of water? I'm trying to figure out how you got all four to make the same noise.
Did you check for loose screws between the handle bars and the saddle? :shock: :lol: I'm kidding of course. We used to make that joke al the time when I worked at a auto garage.
Let us know what it is. I think it's the bottom brackets. Do you ride through a lot of water? I'm trying to figure out how you got all four to make the same noise.
