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add bike bearing play repair blog post

Thomas Buck 2 år sedan
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input/blog/2022/2022_05_21_bike_spokes.md Visa fil

@@ -125,3 +125,5 @@ Here are the verbatim notes I made back there, with some specs of my bike and wh
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 Even though I heard bad things I have to say rebuilding a wheel is not that hard.
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 Just read through some tutorials on the web or watch some YouTube videos on the topic and try it yourself!
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+Also take a look at [part 2 of this repair](2022_05_25_bike_shifter.html)!

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input/blog/2022/2022_05_25_bike_shifter.md Visa fil

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+title: Blog
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+post: Bicycle Repair, Part 2
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+description: Adjusting the rear wheel bearing play
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+date: 2022-05-25
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+comments: true
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+---
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+If you haven't done so, also take a look at [part 1 of this repair](2022_05_21_bike_spokes.html)!
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+On my first ride after repairing the broken spokes, I noticed a large amount of play in the rear wheel.
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+Of course I was quite worried and not sure what's going on.
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+So I went to another bike shop, not the same as last time, as this one was on my way home from work.
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+They told me the rear hub is probably broken and can only be repaired by the manufacturer.
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+Also, the soonest they could look at it would be in August.
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+
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+So I went home and did a bit of research.
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+Turns out, my Shimano Alfine 8-gear shifter is working like most other hubs, and the bearing play can be adjusted easily.
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+For this, the break disc has to be removed with the special tool again, like last time.
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+Then the lock nut and the conical nut are already visible, and were completely lose in my case.
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+
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+<!--%
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+lightgallery([
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+    [ "img/shimano_alfine_1.jpg", "Hub with lock nut removed" ],
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+    [ "img/shimano_alfine_2.jpg", "Conical adjustment nut lifter slightly " ],
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+    [ "img/shimano_alfine_3.jpg", "View into the bearing" ],
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+])
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+%-->
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+
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+The inner nut fits a 15mm wrench, the outer nut needs 17mm.
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+Unfortunately, to lock the nuts again, you need a special flat 15mm wrench, a standard one won't fit.
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+
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+<!--%
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+lightgallery([
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+    [ "img/shimano_alfine_4.jpg", "Standard 15mm wrench is too thick" ],
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+    [ "img/shimano_alfine_5.jpg", "Flat wrench fits perfectly" ],
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+    [ "img/shimano_alfine_6.jpg", "Locking nut with normal 17mm wrench" ],
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+])
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+%-->
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+When the bearing is too lose, the wheel has too much play and wiggles noticeably.
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+Too tight on the other hand, and the wheel won't spin much after giving it a push.
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+So try to find the sweet spot in the middle, then lock the second nut tightly agains the first one.
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+That's it, hopefully now we're really good to go! 🚴

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