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#11
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Alfine 11 hub skipping under hard pedaling
On Tuesday, September 26, 2017 at 8:22:34 AM UTC-5, dstamat wrote:
Dear All, The Alfine 11 SG-S700 hub of my commuting bicycle has started to skip when I pedal standing up. Mostly around the middle of the range (5, 6 and 7). I hear a very loud noise and I have to stop pedaling. It does not happen when pedaling seated. When in 6 gear the two small yellow lines are aligned so I guess it is not because of bad adjustment. I have had this bike for ~5 years but it has only been ridden for ~1000 mi. The oil of the hub has not been changed yet. Any ideas? Thanks in advance Dimitris With so few miles, and single gear chain, it is very unlikely, but check the teeth on the hub for wear or rust build up. |
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#12
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Alfine 11 hub skipping under hard pedaling
On Fri, 10 Nov 2017 05:50:34 -0800, dstamat wrote:
Dear All, Thank you for your comments and advice. I investigated a little more and I have isolated the skipping to the 8th gear. It only happens after pedaling for a while so it is hard to replicate on a stand. Now, every time it happens, I change the adjustment a little and experiment with the frequency of the skips. Also, as you suggested, I need to change the oil. The Shimano or Rohloff oils are ridiculously expensive, so I have found this alternative at a reasonable price: Liqui Moly 1401 GL4 SAE 80 W Transmission Oil For about $10 per quart it will allow me to rinse the hub more than once and more change the oil. What do you think? Many thanks again Dimitris Should work fine if the viscosity is similar to the shimano oil. Good luck. -- davethedave |
#14
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Alfine 11 hub skipping under hard pedaling
On Mon, 13 Nov 2017 04:04:49 -0500, JQ wrote:
On 11/10/2017 8:50 AM, wrote: Dear All, Thank you for your comments and advice. I investigated a little more and I have isolated the skipping to the 8th gear. It only happens after pedaling for a while so it is hard to replicate on a stand. Now, every time it happens, I change the adjustment a little and experiment with the frequency of the skips. Also, as you suggested, I need to change the oil. The Shimano or Rohloff oils are ridiculously expensive, so I have found this alternative at a reasonable price: Liqui Moly 1401 GL4 SAE 80 W Transmission Oil For about $10 per quart it will allow me to rinse the hub more than once and more change the oil. What do you think? Many thanks again Dimitris https://www.amazon.de/gp/product/B004FPQYW4/ On Tuesday, September 26, 2017 at 3:22:34 PM UTC+2, dstamat wrote: Dear All, The Alfine 11 SG-S700 hub of my commuting bicycle has started to skip when I pedal standing up. Mostly around the middle of the range (5, 6 and 7). I hear a very loud noise and I have to stop pedaling. It does not happen when pedaling seated. When in 6 gear the two small yellow lines are aligned so I guess it is not because of bad adjustment. I have had this bike for ~5 years but it has only been ridden for ~1000 mi. The oil of the hub has not been changed yet. Any ideas? Thanks in advance Dimitris I would think the gear that is skipping is the one you ride in mostly, right? If it is the case the chain has stretched and the gear teeth has also stretched, so when it is under heavy load the instead of the chain sitting in the chain groove it is slipping up and out.* causing the hops or skips. Start saving up your money to replace both the chain and cassette. You will be able to get many more miles but you will need to start avoiding the gear that is slipping. Keep the chain clean and lubed and the cassette clean to get the most out of it. A new or newish chain may give you better performance but I would not put a new chain on there until you switch out everything. Get a decent chain and cassette and definitely don't go with the lightest one around as they will not last as long. Good luck and safe riding... Does a Alfine hub use a cassette? And what sort of chain fits them? I read somewhere that they run a 1/8" chain, but other sites mention using a 9 speed chain? -- Cheers, John B. |
#15
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Alfine 11 hub skipping under hard pedaling
On 11/13/2017 5:20 AM, John B. wrote:
On Mon, 13 Nov 2017 04:04:49 -0500, JQ wrote: On 11/10/2017 8:50 AM, wrote: Dear All, Thank you for your comments and advice. I investigated a little more and I have isolated the skipping to the 8th gear. It only happens after pedaling for a while so it is hard to replicate on a stand. Now, every time it happens, I change the adjustment a little and experiment with the frequency of the skips. Also, as you suggested, I need to change the oil. The Shimano or Rohloff oils are ridiculously expensive, so I have found this alternative at a reasonable price: Liqui Moly 1401 GL4 SAE 80 W Transmission Oil For about $10 per quart it will allow me to rinse the hub more than once and more change the oil. What do you think? Many thanks again Dimitris https://www.amazon.de/gp/product/B004FPQYW4/ On Tuesday, September 26, 2017 at 3:22:34 PM UTC+2, dstamat wrote: Dear All, The Alfine 11 SG-S700 hub of my commuting bicycle has started to skip when I pedal standing up. Mostly around the middle of the range (5, 6 and 7). I hear a very loud noise and I have to stop pedaling. It does not happen when pedaling seated. When in 6 gear the two small yellow lines are aligned so I guess it is not because of bad adjustment. I have had this bike for ~5 years but it has only been ridden for ~1000 mi. The oil of the hub has not been changed yet. Any ideas? Thanks in advance Dimitris I would think the gear that is skipping is the one you ride in mostly, right? If it is the case the chain has stretched and the gear teeth has also stretched, so when it is under heavy load the instead of the chain sitting in the chain groove it is slipping up and out. causing the hops or skips. Start saving up your money to replace both the chain and cassette. You will be able to get many more miles but you will need to start avoiding the gear that is slipping. Keep the chain clean and lubed and the cassette clean to get the most out of it. A new or newish chain may give you better performance but I would not put a new chain on there until you switch out everything. Get a decent chain and cassette and definitely don't go with the lightest one around as they will not last as long. Good luck and safe riding... Does a Alfine hub use a cassette? And what sort of chain fits them? I read somewhere that they run a 1/8" chain, but other sites mention using a 9 speed chain? A 3/32" sprocket is supplied and riders run just about every chain format on them. 1/8" chain runs fine on 3/32" teeth and lasts longer. Incidentally 3/32" chain and sprockets all have compatible chain-to-tooth dimensions. It's the outside overall width which changes from 4/5 speed up to 11/12 speed format. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
#16
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Alfine 11 hub skipping under hard pedaling
On 11/13/2017 4:04 AM, JQ wrote:
On 11/10/2017 8:50 AM, wrote: Dear All, Thank you for your comments and advice. I investigated a little more and I have isolated the skipping to the 8th gear. It only happens after pedaling for a while so it is hard to replicate on a stand. Now, every time it happens, I change the adjustment a little and experiment with the frequency of the skips. Also, as you suggested, I need to change the oil. The Shimano or Rohloff oils are ridiculously expensive, so I have found this alternative at a reasonable price: Liqui Moly 1401 GL4 SAE 80 W Transmission Oil For about $10 per quart it will allow me to rinse the hub more than once and more change the oil. What do you think? Many thanks again Dimitris https://www.amazon.de/gp/product/B004FPQYW4/ On Tuesday, September 26, 2017 at 3:22:34 PM UTC+2, dstamat wrote: Dear All, The Alfine 11 SG-S700 hub of my commuting bicycle has started to skip when I pedal standing up. Mostly around the middle of the range (5, 6 and 7). I hear a very loud noise and I have to stop pedaling. It does not happen when pedaling seated. When in 6 gear the two small yellow lines are aligned so I guess it is not because of bad adjustment. I have had this bike for ~5 years but it has only been ridden for ~1000 mi. The oil of the hub has not been changed yet. Any ideas? Thanks in advance Dimitris I would think the gear that is skipping is the one you ride in mostly, right? If it is the case the chain has stretched and the gear teeth has also stretched, so when it is under heavy load the instead of the chain sitting in the chain groove it is slipping up and out.Â* causing the hops or skips. Start saving up your money to replace both the chain and cassette. You will be able to get many more miles but you will need to start avoiding the gear that is slipping. Keep the chain clean and lubed and the cassette clean to get the most out of it. A new or newish chain may give you better performance but I would not put a new chain on there until you switch out everything. Get a decent chain and cassette and definitely don't go with the lightest one around as they will not last as long. Good luck and safe riding... The Shimano Alfine 11 is an internal gear hub. It has only one sprocket. The problem must be internal. And it's a pretty complicated beast. See https://www.sheldonbrown.com/alfine-11.html That article has some discussion of slipping problems. -- - Frank Krygowski |
#17
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Alfine 11 hub skipping under hard pedaling
On Mon, 13 Nov 2017 04:04:49 -0500, JQ wrote:
On 11/10/2017 8:50 AM, wrote: Dear All, Thank you for your comments and advice. I investigated a little more and I have isolated the skipping to the 8th gear. It only happens after pedaling for a while so it is hard to replicate on a stand. Now, every time it happens, I change the adjustment a little and experiment with the frequency of the skips. Also, as you suggested, I need to change the oil. The Shimano or Rohloff oils are ridiculously expensive, so I have found this alternative at a reasonable price: Liqui Moly 1401 GL4 SAE 80 W Transmission Oil For about $10 per quart it will allow me to rinse the hub more than once and more change the oil. What do you think? Many thanks again Dimitris https://www.amazon.de/gp/product/B004FPQYW4/ On Tuesday, September 26, 2017 at 3:22:34 PM UTC+2, dstamat wrote: Dear All, The Alfine 11 SG-S700 hub of my commuting bicycle has started to skip when I pedal standing up. Mostly around the middle of the range (5, 6 and 7). I hear a very loud noise and I have to stop pedaling. It does not happen when pedaling seated. When in 6 gear the two small yellow lines are aligned so I guess it is not because of bad adjustment. I have had this bike for ~5 years but it has only been ridden for ~1000 mi. The oil of the hub has not been changed yet. Any ideas? Thanks in advance Dimitris I would think the gear that is skipping is the one you ride in mostly, right? If it is the case the chain has stretched and the gear teeth has also stretched, so when it is under heavy load the instead of the chain sitting in the chain groove it is slipping up and out.Â* causing the hops or skips. Start saving up your money to replace both the chain and cassette. You will be able to get many more miles but you will need to start avoiding the gear that is slipping. Keep the chain clean and lubed and the cassette clean to get the most out of it. A new or newish chain may give you better performance but I would not put a new chain on there until you switch out everything. Get a decent chain and cassette and definitely don't go with the lightest one around as they will not last as long. Good luck and safe riding... It doesn't have a cassette. It's an internally geared hub. The cog is built like a brick **** house and 1000 miles is not going to trouble it at all. The hubs are very pernickity about lubrication and need regular oil changes or they sulk. Our man, as he himself correctly says, needs to change the oil. Ride it for a bit and then change the oil again and all should be shiny and maybe even better than new as the parts will have worn in together. Mine has about 11000 on it now. It gets an oil change in winter and a strip down clean and rebuild in spring. Still going OK. -- davethedave |
#18
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Alfine 11 hub skipping under hard pedaling
On 13/11/17 20:41, dave wrote:
snip The hubs are very pernickity about lubrication and need regular oil changes or they sulk. Our man, as he himself correctly says, needs to change the oil. Ride it for a bit and then change the oil again and all should be shiny and maybe even better than new as the parts will have worn in together. Mine has about 11000 on it now. It gets an oil change in winter and a strip down clean and rebuild in spring. Still going OK. That's getting there. Are they tricksy to strip? Any links? Mines got about 8k km on it, with one oil change, plan to do the next in the spring. Is it really worth a strip? |
#19
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Alfine 11 hub skipping under hard pedaling
On 11/13/2017 4:04 AM, JQ wrote:
On 11/10/2017 8:50 AM, wrote: Dear All, Thank you for your comments and advice. I investigated a little more and I have isolated the skipping to the 8th gear. It only happens after pedaling for a while so it is hard to replicate on a stand. Now, every time it happens, I change the adjustment a little and experiment with the frequency of the skips. Also, as you suggested, I need to change the oil. The Shimano or Rohloff oils are ridiculously expensive, so I have found this alternative at a reasonable price: Liqui Moly 1401 GL4 SAE 80 W Transmission Oil For about $10 per quart it will allow me to rinse the hub more than once and more change the oil. What do you think? Many thanks again Dimitris https://www.amazon.de/gp/product/B004FPQYW4/ On Tuesday, September 26, 2017 at 3:22:34 PM UTC+2, dstamat wrote: Dear All, The Alfine 11 SG-S700 hub of my commuting bicycle has started to skip when I pedal standing up. Mostly around the middle of the range (5, 6 and 7). I hear a very loud noise and I have to stop pedaling. It does not happen when pedaling seated. When in 6 gear the two small yellow lines are aligned so I guess it is not because of bad adjustment. I have had this bike for ~5 years but it has only been ridden for ~1000 mi. The oil of the hub has not been changed yet. Any ideas? Thanks in advance Dimitris I would think the gear that is skipping is the one you ride in mostly, right? If it is the case the chain has stretched and the gear teeth has also stretched, so when it is under heavy load the instead of the chain sitting in the chain groove it is slipping up and out.Â* causing the hops or skips. Start saving up your money to replace both the chain and cassette. You will be able to get many more miles but you will need to start avoiding the gear that is slipping. Keep the chain clean and lubed and the cassette clean to get the most out of it. A new or newish chain may give you better performance but I would not put a new chain on there until you switch out everything. Get a decent chain and cassette and definitely don't go with the lightest one around as they will not last as long. Good luck and safe riding... i just realized that the bike in question is a hub system and not th standard drive system. That's what happens when you pull and all nighter with only a few hours sleep the few nights before. I have not worked on a hub system so my advice may not be correct, sorry! -- Ride fast, ride hard, ride for health and enjoyment... Coach JQ Dancing on the edge --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus |
#20
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Alfine 11 hub skipping under hard pedaling
On 11/13/2017 8:01 PM, JQ wrote:
On 11/13/2017 4:04 AM, JQ wrote: On 11/10/2017 8:50 AM, wrote: Dear All, Thank you for your comments and advice. I investigated a little more and I have isolated the skipping to the 8th gear. It only happens after pedaling for a while so it is hard to replicate on a stand. Now, every time it happens, I change the adjustment a little and experiment with the frequency of the skips. Also, as you suggested, I need to change the oil. The Shimano or Rohloff oils are ridiculously expensive, so I have found this alternative at a reasonable price: Liqui Moly 1401 GL4 SAE 80 W Transmission Oil For about $10 per quart it will allow me to rinse the hub more than once and more change the oil. What do you think? Many thanks again Dimitris https://www.amazon.de/gp/product/B004FPQYW4/ On Tuesday, September 26, 2017 at 3:22:34 PM UTC+2, dstamat wrote: Dear All, The Alfine 11 SG-S700 hub of my commuting bicycle has started to skip when I pedal standing up. Mostly around the middle of the range (5, 6 and 7). I hear a very loud noise and I have to stop pedaling. It does not happen when pedaling seated. When in 6 gear the two small yellow lines are aligned so I guess it is not because of bad adjustment. I have had this bike for ~5 years but it has only been ridden for ~1000 mi. The oil of the hub has not been changed yet. Any ideas? Thanks in advance Dimitris I would think the gear that is skipping is the one you ride in mostly, right? If it is the case the chain has stretched and the gear teeth has also stretched, so when it is under heavy load the instead of the chain sitting in the chain groove it is slipping up and out.Â* causing the hops or skips. Start saving up your money to replace both the chain and cassette. You will be able to get many more miles but you will need to start avoiding the gear that is slipping. Keep the chain clean and lubed and the cassette clean to get the most out of it. A new or newish chain may give you better performance but I would not put a new chain on there until you switch out everything. Get a decent chain and cassette and definitely don't go with the lightest one around as they will not last as long. Good luck and safe riding... i just realized that the bike in question is a hub system and not th standard drive system. That's what happens when you pull and all nighter with only a few hours sleep the few nights before. I have not worked on a hub system so my advice may not be correct, sorry! While giving it some more thought and think someone else mentioned it too. I would still check the chain for stretch and the rear sprocket for stretched teeth deformation. The same theory would apply. It is the gear you have enough power to cause the chain to hop, the next bigger gear is too much or you haven't given it enough power to hop and the easier gear you may not be able to make it skip if had not pounced on it hard enough before it would start to spin out. The internal hub is like a automobile automatic transmission working off oil friction plates. If the oil is contaminated or you are running two different oil types or there was a manufacturing defect the hub should not skip only in one gear. If you bought it new and it is still under warranty take it back to the shop. -- Ride fast, ride hard, ride for health and enjoyment... Coach JQ Dancing on the edge --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus |
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