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Old Shimano LX rear derailleur pulley



 
 
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  #1  
Old June 27th 13, 12:32 AM posted to rec.bicycles.tech
somebody[_2_]
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Default Old Shimano LX rear derailleur pulley

The original pulleys have gone bad on my old Deore LX (RD-M567) and
all the replacements are 10 tooth, this had 11. I tried a 9-speed
AEST pulley and shifting is poor. How well would a 10 tooth pulley
do? All of the 11 tooth pulleys I see out there are for 9 speed
setups.

Are 8's made with 11 teeth anymore?

Thanks!
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  #2  
Old June 27th 13, 02:56 AM posted to rec.bicycles.tech
datakoll
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Default Old Shimano LX rear derailleur pulley


look here

http://www.universalcycles.com/shopp...p?category=532

for reassembly try packing those plain bearings with synthetic boat trailer wheel bearing grease
  #3  
Old June 27th 13, 07:30 AM posted to rec.bicycles.tech
datakoll
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Default Old Shimano LX rear derailleur pulley

yeah I asked for 8's n the LBS said no 8's only 9's and the 9 was same as the 8 running.

Use red locktite on the bolts. Try sealing bolts with saran wrap for the push thru.

UC's review section is cool. "I can feel the difference..."

Exquisite.
  #4  
Old June 27th 13, 01:32 PM posted to rec.bicycles.tech
John B.[_3_]
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Default Old Shimano LX rear derailleur pulley

On Wed, 26 Jun 2013 19:32:46 -0400, somebody
wrote:

The original pulleys have gone bad on my old Deore LX (RD-M567) and
all the replacements are 10 tooth, this had 11. I tried a 9-speed
AEST pulley and shifting is poor. How well would a 10 tooth pulley
do? All of the 11 tooth pulleys I see out there are for 9 speed
setups.

Are 8's made with 11 teeth anymore?

Thanks!



11 teeth simply means that the pulley is a larger diameter than one
with fewer teeth. Pulley diameter influences two things, the amount of
clearance between the lower pulley and the cage, which is a fixed
distance while the upper effects the clearance with the cassette cogs.
This distance is adjustable, to some extent.
--
Cheers,

John B.
  #5  
Old June 29th 13, 12:35 AM posted to rec.bicycles.tech
somebody[_2_]
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Posts: 193
Default Old Shimano LX rear derailleur pulley

On Wed, 26 Jun 2013 23:30:47 -0700 (PDT), datakoll
wrote:

yeah I asked for 8's n the LBS said no 8's only 9's and the 9 was same as the 8 running.

Use red locktite on the bolts. Try sealing bolts with saran wrap for the push thru.

UC's review section is cool. "I can feel the difference..."

Exquisite.


But are they the same thickness? 8-speed chains are wider than 9's -
will there be extra slop using a 9-speed pulley with an 8-speed chain?
  #6  
Old June 29th 13, 12:58 AM posted to rec.bicycles.tech
datakoll
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Posts: 7,793
Default Old Shimano LX rear derailleur pulley

SLOP: a technical term ?

EXTRA SLOP

pig's eat slop! an old wive's tale.

new bearings improve chain's run to the next turn. EXTRA SLOP is probo insignificant compared with the new bearing's directional stability

Is energy lost ? to tight loses energy, too loose also.

one can imagine Shimano engineering discussing the procedures with accounting.

All we 8 speeder's are easy to get along with.
  #7  
Old June 29th 13, 01:03 PM posted to rec.bicycles.tech
John B.[_3_]
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Posts: 5,697
Default Old Shimano LX rear derailleur pulley

On Fri, 28 Jun 2013 19:35:58 -0400, somebody
wrote:

On Wed, 26 Jun 2013 23:30:47 -0700 (PDT), datakoll
wrote:

yeah I asked for 8's n the LBS said no 8's only 9's and the 9 was same as the 8 running.

Use red locktite on the bolts. Try sealing bolts with saran wrap for the push thru.

UC's review section is cool. "I can feel the difference..."

Exquisite.


But are they the same thickness? 8-speed chains are wider than 9's -
will there be extra slop using a 9-speed pulley with an 8-speed chain?


Perhaps, but how much slop is too much? The 9 speed pulleys have some
slop with a 9 speed chain, but the same pulleys work equally well with
a 10 speed chain.
--
Cheers,

John B.
  #8  
Old June 29th 13, 01:43 PM posted to rec.bicycles.tech
datakoll
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Posts: 7,793
Default Old Shimano LX rear derailleur pulley

we have a sheet on PULLEY SLOP:

REPLACE when teeth show wear/wheels show excessive cal lateral and vertiplay at bearing surface.

Our Guide tells us fancy bearings in pulley cogs give an extremely high cost/effectiveness quotient.

Plain bearings well lubed and cleaned/inspected
 




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