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#1
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Rolf hub disassembly
I have a problem with a creaking rear Rolf Sestriere wheel, and need to
disassemble the hub to inspect and regrease the bearings. Trouble is, I can't for the life of me see how to do that. There are no locknuts, flats for spanners, nothing. Any clues how to open it up? Also, any suggestions on how to quieten the incredibly loud buzzing from the hub when freewheeling, would be hugely appreciated. -- Tony |
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#2
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Rolf hub disassembly
"Tony Eva" wrote in message ... I have a problem with a creaking rear Rolf Sestriere wheel, and need to disassemble the hub to inspect and regrease the bearings. Trouble is, I can't for the life of me see how to do that. There are no locknuts, flats for spanners, nothing. Any clues how to open it up? Also, any suggestions on how to quieten the incredibly loud buzzing from the hub when freewheeling, would be hugely appreciated. -- Tony Are the holes where the skewer goes through hex shaped like Chris King hubs? Just a guess - I'm not familiar with the Sestriere hub, the Rolf Dolomite hubs I have have flats for cone wrenches. Mike |
#3
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Rolf hub disassembly
Hey Tony.
Remove the skewer. Hook your fingers under the biggest cog, place thumbs on the spokes of your choice and pull the cogs off. The cogs and freehub body should pull the drive side endcap off the axle. This should expose the 2 Splined gears (the ratcheting mechanism). Your hub has 4 sealed cartridge bearings (2 in the freehub body and 2 in the hub shell). Unless they feel rough, leave them alone. Special tools are requires to get them out (except the hub shell non-drive side bearing...knock the axle out of the hub from the drive side and that bearing will come out with the axle), even to get to the seals for regreasing. I would just clean everything (the 2 splined cogs, the splines in the hub shell and freehub body, the springs and the spacer/sleeve the splined cogs surround with a nice brush and some degreaser. Make sure you get every bit of corrosion and particulate out of the nooks and crannies. Inspect the mating surfaces of the splined cogs.... any chipped teeth? no? good. Noise from the unit (the buzzing you mentioned) depends on choice of lube. If it is noisy now (noisier than when it was new) then it was probably quite dry in there. Relube the mechanism with a light coat of the lightest grease you have (nothing too heavy).... just a light coat on all surfaces you cleaned. The heavier the grease the quieter the sound but then you risk the chance of the splines not engaging fully and that may cause chipped teeth (or inconsistent engagement). Unfortunately, the price you pay for a light, quick to engage rear hub is the noise you don't like. All splined hubs will be noisier than their pawl engaging counterparts. Unfortunately, if you want to eliminate the noise completely (not just lessen it), you need new wheels, as the hub shells are proprietary to Rolf (and now Trek/Bontrager). Ask anyone using Chris King, Marwi, DT/Hugi, Edco, or Bontrager hubs what they do to deal with the noise... (I run Phil Oil in my Marwi for winter. On cold, foggy, sound travels further than your vision can see kinda days I must scare the crap out of people). Now, could you tell us under what conditions the wheel creaks? (I'd hate to have you go through all that if it is just a simple rubber seal that is dry and squeaking...). Hope this helps. Keith Pears "The knack lies in learning to throw yourself - at the ground and miss" Douglas Adams. "Tony Eva" wrote in message ... I have a problem with a creaking rear Rolf Sestriere wheel, and need to disassemble the hub to inspect and regrease the bearings. Trouble is, I can't for the life of me see how to do that. There are no locknuts, flats for spanners, nothing. Any clues how to open it up? Also, any suggestions on how to quieten the incredibly loud buzzing from the hub when freewheeling, would be hugely appreciated. -- Tony |
#4
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Rolf hub disassembly
"kapers" wrote in message news:q%o9b.12751$Cu3.9516@edtnps84... [ ... long and very useful stuff snipped ... ] Thanks Keith, that is very helpful. I don't have the hub right here in front of me so I can't try it right now; but if I understand you, it just basically pulls apart? That hadn't occurred to me at all :-) Now, could you tell us under what conditions the wheel creaks? Well, I didn't want to bore the group with yet another "my bike creaks" story, but since you asked, here goes... :-) It occurs under heavy load (normally when I am going uphill, though hard pedalling on the flat can produce it), in sync with the cadence. It occurs in all gears, and both chainrings, when I'm sitting or standing. Before moving my attention to the rear wheel (which is where it sounds like it comes from anyway) I had checked and lubed (or replaced) BB, pedals, cleats, chainring bolts, seatpost, saddle rails, chain, sprockets (on the hub), and dropouts. Then I had the illuminating idea of borrowing a friend's wheel - creaks disappeared instantly. Since then I have dripped oil down the spoke nipples (and also onto the hub ends of the spokes) and checked the spoke crossing points. All to no avail. So now I'm moving on to the hub - hence my question. Oh, and it's an OCLV frame so I think frame cracks are unlikely - not that I haven't checked for them... The sound is a definite rhythmical cracking/creaking, not a squeak. And the weirdest thing is that it stops instantly if I shift gear, only to come back again within 10-15 secs. It's embarrassingly loud, so much so that I now change gear just before I pass other riders, to give myself that period of relative silence (bar my gasping) before the racket starts up again. So now you know :-) Any ideas for things I haven't tried would be extremely welcome. I've more or less run out. -- Tony |
#5
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Rolf hub disassembly
"Michael Dart" wrote in message
... Are the holes where the skewer goes through hex shaped like Chris King hubs? Thanks, but no, they're quite round, ISTR (don't have it here right now). I'm sure I would have noticed that... -- Tony |
#6
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Rolf hub disassembly
I've solved creaking in some Rolf hubs by greasing the threads on the
drive ring. You can see it in the hub shell after you take off the cassette (see Keith's excellent description), but it requires a special tool to unscrew. Pedaling tightens it. "Tony Eva" wrote in message ... "kapers" wrote in message news:q%o9b.12751$Cu3.9516@edtnps84... [ ... long and very useful stuff snipped ... ] Thanks Keith, that is very helpful. I don't have the hub right here in front of me so I can't try it right now; but if I understand you, it just basically pulls apart? That hadn't occurred to me at all :-) Now, could you tell us under what conditions the wheel creaks? Well, I didn't want to bore the group with yet another "my bike creaks" story, but since you asked, here goes... :-) It occurs under heavy load (normally when I am going uphill, though hard pedalling on the flat can produce it), in sync with the cadence. It occurs in all gears, and both chainrings, when I'm sitting or standing. Before moving my attention to the rear wheel (which is where it sounds like it comes from anyway) I had checked and lubed (or replaced) BB, pedals, cleats, chainring bolts, seatpost, saddle rails, chain, sprockets (on the hub), and dropouts. Then I had the illuminating idea of borrowing a friend's wheel - creaks disappeared instantly. Since then I have dripped oil down the spoke nipples (and also onto the hub ends of the spokes) and checked the spoke crossing points. All to no avail. So now I'm moving on to the hub - hence my question. Oh, and it's an OCLV frame so I think frame cracks are unlikely - not that I haven't checked for them... The sound is a definite rhythmical cracking/creaking, not a squeak. And the weirdest thing is that it stops instantly if I shift gear, only to come back again within 10-15 secs. It's embarrassingly loud, so much so that I now change gear just before I pass other riders, to give myself that period of relative silence (bar my gasping) before the racket starts up again. So now you know :-) Any ideas for things I haven't tried would be extremely welcome. I've more or less run out. |
#7
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Rolf hub disassembly
"Tony Eva" wrote...
Well, I didn't want to bore the group with yet another "my bike creaks" story, but since you asked, here goes... :-) [ ... snip ...] For the benefit of Googlers looking for an answer to their creaking bike problems: the hub disassembly and greasing sorted the problem out. Now I have a lovely silent bike again, at long last. Thanks to all for their help. -- Tony |
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