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Alfine 11 hub skipping under hard pedaling



 
 
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  #11  
Old November 13th 17, 03:38 AM posted to rec.bicycles.tech
[email protected]
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Posts: 7
Default 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  
Old November 13th 17, 06:50 AM posted to rec.bicycles.tech
dave[_3_]
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Posts: 25
Default 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
  #13  
Old November 13th 17, 10:04 AM posted to rec.bicycles.tech
JQ
external usenet poster
 
Posts: 22
Default Alfine 11 hub skipping under hard pedaling

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...

--
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.
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  #14  
Old November 13th 17, 12:20 PM posted to rec.bicycles.tech
John B.[_3_]
external usenet poster
 
Posts: 3,556
Default 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  
Old November 13th 17, 02:37 PM posted to rec.bicycles.tech
AMuzi
external usenet poster
 
Posts: 9,030
Default 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  
Old November 13th 17, 06:22 PM posted to rec.bicycles.tech
Frank Krygowski[_4_]
external usenet poster
 
Posts: 5,394
Default 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.* 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  
Old November 13th 17, 08:41 PM posted to rec.bicycles.tech
dave[_3_]
external usenet poster
 
Posts: 25
Default 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...


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  
Old November 13th 17, 09:19 PM posted to rec.bicycles.tech
Tosspot[_3_]
external usenet poster
 
Posts: 1,085
Default 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  
Old November 14th 17, 02:01 AM posted to rec.bicycles.tech
JQ
external usenet poster
 
Posts: 22
Default 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.* 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  
Old November 14th 17, 02:28 AM posted to rec.bicycles.tech
JQ
external usenet poster
 
Posts: 22
Default 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.*
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

---
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