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Small Spacer - Rear Wheel

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Old 03-14-22, 06:20 AM
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Piper J3
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Small Spacer - Rear Wheel

This is my first post so not allowed to post photos yet. Stupid rule if you ask me…

I just replaced the cassette on my DS 8.5 and found a small spacer on the floor after removing the rear wheel. Almost looks like it would slip on the axle thru shaft. Spacer measures 0.302 OD x 0.202 ID x 0.087 W. I re-installed the rear wheel and everything looks good. Derailleur shifts correctly. Brake disc is centered in caliper with no drag.

Maybe spacer didn’t belong with bike and left over from previous project???
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Old 03-14-22, 07:44 AM
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About the size for a M5 washer. At .202" ID I don't know of any cassette or axle aspect that would fit the part. Andy
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Old 03-14-22, 08:01 AM
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Andy is correct, that ID is a clearance fit on a 5mm bolt and the thickness is about 2mm so it is probably an M5 washer. It can't have come from either the cassette or hub so it must be a left-over from something else.

As to requiring 10 postings before a new member is allowed to post photos (or links), that's to reduce trolls, scammers and unpaid ads from cluttering up this forum. It's an inconvenience to new members but a benefit to everyone else.
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Old 03-14-22, 08:02 AM
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Thanks for reply. I had rear hydraulic caliper off the frame over the winter. I wonder if this spacer could be related to caliper mounting....
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Old 03-14-22, 01:15 PM
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Originally Posted by Andrew R Stewart
About the size for a M5 washer. At .202" ID I don't know of any cassette or axle aspect that would fit the part. Andy
Good sleuthing Andrew! I hate the "keep your eye on the metal thing bouncing along the floor" game.

I'm working my way up to 10 posts myself. Hard to wait, harder still to find useful things to say when you can't provide pics.
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Old 03-14-22, 02:42 PM
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"I hate the "keep your eye on the metal thing bouncing along the floor" game."

I call it "praying to the god floor" Spent way too much time doing it... Andy
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Old 03-14-22, 03:45 PM
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Originally Posted by Andrew R Stewart
I call it "praying to the god floor" Spent way too much time doing it... Andy
Consider making a small offering: https://www.harborfreight.com/17-in-...per-62704.html
A strong flashlight shined at a grazing angle along the floor will help highlight lost objects. They always seem to be attracted to the floor drain, though!
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Old 03-14-22, 03:56 PM
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Originally Posted by dsbrantjr
Consider making a small offering: https://www.harborfreight.com/17-in-...per-62704.html
A strong flashlight shined at a grazing angle along the floor will help highlight lost objects. They always seem to be attracted to the floor drain, though!
Brilliant!! I might have to get one of those and go through my decorative rock garden/work space. Lots of (now) vintage parts lost over the years. Thanks
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Old 03-14-22, 04:20 PM
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So, I rode the bike today and everything seems OK. Gears shift well, brakes are smooth, no strange noises. New cassette gearing is spot on...
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Old 03-14-22, 04:34 PM
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Originally Posted by Piper J3
Maybe spacer didn’t belong with bike and left over from previous project???
Washers from M5 bolts are used for the eyelets of a pannier rack and mud guards stays.

One was stuck to the frame from hardened grease or perhaps lodged between cassette gears, who knows.

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Old 03-14-22, 05:21 PM
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Nothing stupid about the rules, it prevents massive spam attacks and also encourages new users to actually get involved with the forum rather than just using us as a more complicated google or askjeeves.

It sounds like everything is running as it should so it probably is leftover from a different project not a huge worry
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Old 03-14-22, 05:38 PM
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Originally Posted by dsbrantjr
Consider making a small offering: https://www.harborfreight.com/17-in-...per-62704.html
A strong flashlight shined at a grazing angle along the floor will help highlight lost objects. They always seem to be attracted to the floor drain, though!
I learned that trick many decades ago when I wore contact lenses in the 1960's. The hard lenses of the time were prone to popping out from an errant blink and, of course, always fell onto the most difficult to locate place. A flashlight beam skimmed along the floor or table top was the only reliable way to find them.
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Old 03-14-22, 07:34 PM
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At what point does a "washer" become a "spacer"?
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Old 03-14-22, 08:19 PM
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Originally Posted by dedhed
At what point does a "washer" become a "spacer"?
When it is thick enough. At 2+ mm thick, the OP's washer probably a spacer.
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