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what’s that thing on my rear axle?

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what’s that thing on my rear axle?

Old 02-28-22, 12:56 PM
  #26  
Overdraft
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Originally Posted by eduskator
Since I bought a 7000$ bike at a nearby LBS that hadn't been torqued properly by a so-called head mechanic (cassette, handlebars, stem & seat post), nothing surprises me anymore.

I am just wondering why the OP didn't try to play with it before starting this thread... Mine is magnetized and it pulls off pretty easily. #AEROGAINZ
OP here! I tried spinning it and extracting it without effect but since it's a plastic part I thought I'd ask before I 'used a bigger hammer'. After inquiry it turns out mine is a push/pull interference fit not a magnet like yours. And anyway, isn't this kind of the point of a forum? Or should we only chime in AFTER we've broken the thing we don't fully understand?
100% on the bike shop observation... my only experience so far is pro car mechanics who can be pretty incompetent so I can easily imagine it extending to other shops...
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Old 02-28-22, 08:20 PM
  #27  
Rdmonster69
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My Domane has the same set up ...I was an out of towner too but must be more charming because I gotta disk brake spacer. Took me a minute to figure out why I only had one as well!!
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Old 03-01-22, 03:35 AM
  #28  
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Originally Posted by cxwrench
The dumb ass Trek dealer didn't show you how that works when you bought the bike? The lever is removeable and used for either wheel. Or a 6mm hex key.

I have a madone as well and did not know this……….. So OP don’t feel bad.
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Old 03-01-22, 04:00 AM
  #29  
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Nice bike!
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Old 03-01-22, 05:28 AM
  #30  
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I know we probably live half a world or so apart but given the experience I had with bikes purchased from Trek dealers here, these are my recommendations:

1. Get a professional bike fit within your grace period to ensure you have the correct size frame based on your leg/upper body length and not just your height on a chart. I needed a smaller frame size despite consulting two sales people about it.
2. Get a torque wrench and check all bolts, I had a loose rear axle (!) on one, to the point where it would initially visibly snap together when I torqued it up, loosely installed pedals on another. Check every bolt and tighten to specs.
3. Download the front and rear derailleur manuals and check/set it up based on the manual.

To point 2, the thing you started the thread about - I only use it in my spare kit to undo a wheel on the road. Use the torque wrench to do your wheels up to the specified 10NM (I do 9.5) and just make sure that you are fine undoing those with the lever on the road. If not, adjust it as high as you can undo with a bit of effort.
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Old 03-01-22, 06:13 AM
  #31  
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Originally Posted by Overdraft
OP here! I tried spinning it and extracting it without effect but since it's a plastic part I thought I'd ask before I 'used a bigger hammer'. After inquiry it turns out mine is a push/pull interference fit not a magnet like yours. And anyway, isn't this kind of the point of a forum? Or should we only chime in AFTER we've broken the thing we don't fully understand?
100% on the bike shop observation... my only experience so far is pro car mechanics who can be pretty incompetent so I can easily imagine it extending to other shops...
You're totally right. Better be safe than sorry Glad to read that you sorted this out.
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