'Narrow' 10t jockey wheels on 90s Deore LX derailleur
09-08-20, 01:55 AM
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'Narrow' 10t jockey wheels on 90s Deore LX derailleur
I have a Shimano Deore LX (SIS 8) derailleur with a 7 speed wheel. Recently a jockey wheel came off and I wasn't able to retrieve its washers or inner metal cylinder (they're in the long grass somewhere). Both the jockey wheels are stamped NARROW. I measured the thicknesses of the wheels without washers or inner barrel and the CENTRE ON G wheel is 6.3mm and the other is 6.8mm as opposed to some new Shimano spares I have which are 9.1mm wide. I can't find any 'narrow' jockey wheels online. Will wider ones do the job or will I run into problems?
Last edited by Roundis; 09-08-20 at 05:27 AM.
09-08-20, 02:46 AM
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I have a Shimano Deore LX (SIS 8) derailleur with a 7 speed wheel. Recently a jockey wheel came off and I wasn't able to retrieve its washers or inner metal cylinder (they're in the long grass somewhere). Both the jockey wheels are stamped NARROW. I measured the thicknesses of the wheels without washers or inner barrel and the CENTRE ON G wheel is 6.3mm and the other is 6.8mm as opposed to some new Shimano spares I have which are 9.1mm wide. I can't find any online 'narrow' jockey wheels online. Will wider ones do the job or will I run into problems?
09-08-20, 03:17 AM
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Yes, the bolts I have are too short. I'll look into Tacx, thanks. I wouldn't be bothered about using a different brand. Also, will I get away with using one with more teeth, eg 11 rather than 10?
Last edited by Roundis; 09-08-20 at 03:24 AM.
09-09-20, 09:03 PM
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If it is the lower pulley...
https://www.ebay.com/itm/Shimano-Der...gAAOSwEOhfVRiR
If it is the upper Centeron pulley, it won't work.
John
https://www.ebay.com/itm/Shimano-Der...gAAOSwEOhfVRiR
If it is the upper Centeron pulley, it won't work.
John
09-11-20, 05:55 AM
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You mean changing the number of teeth won't work or using the wider jockey wheels won't work?
I have bought some longer bolts so I was planning to try the wider jockey wheels this weekend, I'll report back.
Thanks for the ebay link, that looks to be exactly what I have. I'm in the UK though, I haven't found any jockey wheels with the NARROW stamp on them available over here so far.
I have bought some longer bolts so I was planning to try the wider jockey wheels this weekend, I'll report back.
Thanks for the ebay link, that looks to be exactly what I have. I'm in the UK though, I haven't found any jockey wheels with the NARROW stamp on them available over here so far.
Last edited by Roundis; 09-11-20 at 07:04 AM.
09-16-20, 01:14 AM
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I got hold of the longer bolts so I was able to fit the wider jockey wheels. After giving the gear cables a quick adjustment, everything works perfectly as far as I can tell.
09-16-20, 11:18 PM
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Good job!
John
John
05-29-21, 03:56 AM
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I have a Shimano Deore LX (SIS 8) derailleur with a 7 speed wheel. Recently a jockey wheel came off and I wasn't able to retrieve its washers or inner metal cylinder (they're in the long grass somewhere). Both the jockey wheels are stamped NARROW. I measured the thicknesses of the wheels without washers or inner barrel and the CENTRE ON G wheel is 6.3mm and the other is 6.8mm as opposed to some new Shimano spares I have which are 9.1mm wide. I can't find any 'narrow' jockey wheels online. Will wider ones do the job or will I run into problems?
06-06-21, 04:04 AM
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I found a set of narrow Shimano pulley wheels at Saint John's Cycles, with one marked as centeron and both having "narrow" etched onto them. They are, however, 11t. They do work, but shifting to the lowest gear became difficult and whilst before shifting throughout the whole range was absolutely perfect and smooth, that somehow wasn't that easy to achieve with 11t pulley wheels. So gave up and just went back with the previous 10t.
