loud-ish hub has become quiet ?
10-14-13, 01:16 PM
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loud-ish hub has become quiet ?
Not sure what is going on.. my rear hub used to have a fairly loud buzz but it has disappeared. I don't think it has affected the function but i'm wondering if something need an adjustment.
10-14-13, 01:19 PM
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How about some specifics?
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Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
10-14-13, 01:23 PM
#3
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Isn't he just referring to "ratchet racket"? It might be time to clean out the accumulation grime from the hub! 
If it works, that's all that matters, I would think...
If it works, that's all that matters, I would think...
10-14-13, 01:26 PM
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Without specifics, it's a non-starter.
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10-14-13, 01:29 PM
#5
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Yes, please - freewheel, cassette, internal gear, any "problems" other than it's quiet?. Most people would be grateful for your issue. If you lubricated the freewheel/cassette recently that will tend to quiet the pawls, as will aging/thickening of the oil.
Last edited by cny-bikeman; 10-17-13 at 05:48 AM.
10-14-13, 01:30 PM
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not sure what else there is to say.
used to sound like https://www.youtube.com/watch?v=TP_HJ88svi8
now there is almost no noise. just weird that they went from being fairly loud to almost dead silent. i actually like a bit of noise.. comes in handy in some spots..
BH hubs, sram 1070 cassette, considerably new wheels so aging isn't a factor. 1800mi on them since May.
used to sound like https://www.youtube.com/watch?v=TP_HJ88svi8
now there is almost no noise. just weird that they went from being fairly loud to almost dead silent. i actually like a bit of noise.. comes in handy in some spots..
BH hubs, sram 1070 cassette, considerably new wheels so aging isn't a factor. 1800mi on them since May.
Last edited by Jakedatc; 10-14-13 at 01:35 PM.
10-16-13, 06:04 PM
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Ok i'm back with some videos from before and after.
first video from before.. skip to the last few seconds to hear the wheel spin out. (RD was shifting crappy due to a bent hanger)
https://youtu.be/GCOh35vcIGY?t=34s
2nd video just now.. https://youtu.be/2fz802Mjr3I
first video from before.. skip to the last few seconds to hear the wheel spin out. (RD was shifting crappy due to a bent hanger)
https://youtu.be/GCOh35vcIGY?t=34s
2nd video just now.. https://youtu.be/2fz802Mjr3I
10-16-13, 08:38 PM
#9
Mechanic/Tourist
You still have given us no info about the equipment or its age, but judging by the amount of cogs is must be a cassette. There's nothing to adjust. If it's working properly (not taking too long to engage, not slipping under pressure) you can do one of two things:
Don't worry until you see some sort of effect on operation.
Replace the freehub body if you are unable to stop worrying about it.
Don't worry until you see some sort of effect on operation.
Replace the freehub body if you are unable to stop worrying about it.
10-16-13, 08:44 PM
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I did tell you. Post #6 BHS hubs, 10 speed SRAM cassette, 1800mi
you've been less than helpful, you can ignore this thread
edited
you've been less than helpful, you can ignore this thread
edited
Last edited by Jakedatc; 10-16-13 at 09:04 PM.
10-16-13, 09:00 PM
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The safest first step is to pull apart the rear hub, clean and lube all the bits of the freehub and re-assemble. If you do it yourself, it only costs as much as the lube you use on the freehub. Each manufacturer specs something different for lube so check with them to see what they recommend but it is usually some type of light oil or very light grease.
10-16-13, 09:02 PM
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In post 6, you said you had bh hubs, so I wasted some time trying to figure out which model of BH bike you were rolling on....https://bhbikes-us.com/
Now, I see that was just a typo, and you've got some of these, yes? https://www.bikehubstore.com/ BHS hubs.
These have 6 pawls, which should give pretty nice engagement and, presumably, a decent buzzing sound. If the sound has decreased, it is likely a sign that the pawls may be a bit gummed up. I've never seen a BHS hub in the flesh, let alone rebuilt one, but you might wanna see if BHS will give you any tech docs. At any rate, the pawls are the little fin-type things you see in the pic below:
Towards the bottom left-- six of them arranged radially outside the blue cartridge bearing? Those things prolly have some sand/grease/mung/gunk in there. If you can liberate the freehub body, it'd be easy to get at 'em.... Clear the mung, hit em with some lightweight grease, and reassemble. Based on these pictures, I imagine the freehub body is easily disassembled. But, like I said, I've yet to meet one of these hubs. Here's a link to a generic DIY freehub overhaul: https://www.bikeradar.com/us/gear/art...freehub-23757/
HTH. PS- please don't call cny the D-word. He's a big help; folks around here just get understandably frustrated if they haven't gotten enough info to help effectively.
regards
-rob
Now, I see that was just a typo, and you've got some of these, yes? https://www.bikehubstore.com/ BHS hubs.
These have 6 pawls, which should give pretty nice engagement and, presumably, a decent buzzing sound. If the sound has decreased, it is likely a sign that the pawls may be a bit gummed up. I've never seen a BHS hub in the flesh, let alone rebuilt one, but you might wanna see if BHS will give you any tech docs. At any rate, the pawls are the little fin-type things you see in the pic below:
Towards the bottom left-- six of them arranged radially outside the blue cartridge bearing? Those things prolly have some sand/grease/mung/gunk in there. If you can liberate the freehub body, it'd be easy to get at 'em.... Clear the mung, hit em with some lightweight grease, and reassemble. Based on these pictures, I imagine the freehub body is easily disassembled. But, like I said, I've yet to meet one of these hubs. Here's a link to a generic DIY freehub overhaul: https://www.bikeradar.com/us/gear/art...freehub-23757/
HTH. PS- please don't call cny the D-word. He's a big help; folks around here just get understandably frustrated if they haven't gotten enough info to help effectively.
regards
-rob
Last edited by surreal; 10-16-13 at 09:04 PM. Reason: forgot several words
10-16-13, 09:11 PM
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Rob, thanks for the info. I will do that after my ride tomorrow (meeting a friend in the AM so i won't mess with it at 11pm) I think i should be able to get it off with a few allen wrenches on either side.
I accidentally put in BH.. i couldn't remember exactly and they have no graphics. I had to go back to the thread where i bought the wheels on here to find it.
I accidentally put in BH.. i couldn't remember exactly and they have no graphics. I had to go back to the thread where i bought the wheels on here to find it.
10-17-13, 05:50 AM
#14
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I did tell you. Post #6 BHS hubs, 10 speed SRAM cassette, 1800mi
you've been less than helpful, you can ignore this thread
you've been less than helpful, you can ignore this thread
10-17-13, 01:20 PM
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Well this might explain it... there is no retention wire or whatever around the pawls.. they were just sitting in there. I don't think there is anywhere for that to go so maybe it was built without and it has somehow worked this whole time? I'm going to call BHS to see what he says.
10-17-13, 01:38 PM
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Brandon from BHS is going to send me a new wire spring thing. we're both really confused as to how they are still working.. i did 32mi at 19.5avg today lol maybe my power will go up once i have forward gear 
10-17-13, 04:52 PM
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Or maybe it'll increase drag and drop your avg speed? 
Maybe that'll be the next hott mod--- get BHS hubs, pull the retention spring, and then you can go fast like Jakedatc.
Maybe that'll be the next hott mod--- get BHS hubs, pull the retention spring, and then you can go fast like Jakedatc.
10-17-13, 07:05 PM
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In looking up stuff i did find videos of people removing pawls to decrease friction... i'm not sure if that is a worthy mod or not
10-17-13, 07:27 PM
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Impossible for me to say; I take pride in riding slow. My fastest bike has Tiagra hubs. 
But I will say that Chris King has begun offering hubs with 45 teeth (as opposed to their standard 72 tooth) in the ringdrive for less engagement/less drag. Surprising to me, as King hubs built their rep on the near-instant engagement of the 72tooth system, but I guess that's for mountainfolk. The r45 is marketed primarily to road creatures.
But I will say that Chris King has begun offering hubs with 45 teeth (as opposed to their standard 72 tooth) in the ringdrive for less engagement/less drag. Surprising to me, as King hubs built their rep on the near-instant engagement of the 72tooth system, but I guess that's for mountainfolk. The r45 is marketed primarily to road creatures.
10-18-13, 09:23 AM
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The sharp edges of the pawls that engage the teeth look rather rounded compared to those I've seen. Could they be prematurely worn from erratic engagement due the missing spring?
Agree that it is amazing it's been working at all...
Agree that it is amazing it's been working at all...
Likes For Looigi:
10-18-13, 10:32 AM
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I'm not sure. i was focusing on the freehub so the pawls are probably out of focus so it is hard to tell. once the springs get here i'll pull it apart again and see what they look like. BHS has been super fast in returning emails and talking on the phone yesterday. I am hoping their newer freehub will fit in the same hub body so if i need to replace things in the future it will be a simple swap and no rebuilding.
10-21-13, 03:04 PM
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Spring came today. I put it all back together and there is a light buzz in there now. Not as loud as the first video but i'd guess that is because i used more grease when i put it back together. could also be what Looigi said and the tips are dulled a bit and not as snappy. either way it should work better at least.
and if i feel it needs to be replaced the newer freehub will work without rebuilding anything so for 40 bucks i can be a pretty cheap swap.
and if i feel it needs to be replaced the newer freehub will work without rebuilding anything so for 40 bucks i can be a pretty cheap swap.
Last edited by Jakedatc; 10-21-13 at 03:10 PM.
10-21-13, 03:15 PM
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A mechanic removed half of them from Tyler Hamilton's wheel and when it locked he went over the handle bars.
10-21-13, 03:18 PM
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ha good to know.. i just smeared it all with pedro's grease and called it a day. i'm just happy to have all of the pieces back. i'm guessing the old spring broke and got chewed up to nothing because it was 100% gone.