A forum for folks with questions about bicycle repair.

Post your problems, and we will try to get your bike rolling again. It really helps if you can provide pictures and/or video.

A community of cyclists - some with questions, some answers

### Post questions to get help.

Post your problems, and we will try to get your bike rolling again.  It really, really helps if you can provide pictures and/or video.

You can also consult our **[FAQ](https://www.reddit.com/r/bikewrench/wiki/bikewrenchfaq)** or the list of **[people willing to help locally](https://www.reddit.com/r/bikewrench/wiki/local_help)**. 

**Post Rules and Guidelines**

* Questions about bike repair only. If you just want to post a picture, this isn't the place for it.  [Full rules](https://www.reddit.com/r/bikewrench/about/rules/).

* "Is this cracked / safe to ride?" - If you have to ask, don't ride it. We probably can't tell from a picture just what condition your bike is in. Take it to your Local Bike Shop and ask them. If it's carbon, a specialist repair shop may be required. They should have the equipment and expertise to inspect it properly.


* Please use the weekly thread for post follow ups and acknowledgments. Tag helpful commenters if you want them to receive a notification.

### Comment Rules

1. Play nice

2. Stay on topic / No jokes, especially not false answers as jokes.

[Full rules are here](https://www.reddit.com/r/bikewrench/about/rules/).

***

Other Websites:

* [Sheldon Brown's Bicycle Technical Info](https://www.sheldonbrown.com/).  A comprehensive resource with answers to common and obscure questions, data tables, etc., including a [glossary](https://www.sheldonbrown.com/glossary.html) which also serves as an index.

* [Park Tools' Repair Help](https://www.parktool.com/blog/repair-help) including illustrated text and video guides to service procedures.

* [Cold Setting Steel Frames](https://www.reddit.com/r/bikewrench/comments/1w4zp2/questions_on_cold_setting_my_old_frame/cezbaat?utm_source=reddit&utm_medium=usertext&utm_name=bikewrench&utm_content=t5_2sje0): adjusting the dropout spacing on a old frame to fit a more modern drivetrain.  A comment with an overview and links to more information.

Other helpful subs:

* r/bicycleengineering: bicycle technology from an engineering perspective.

* r/wheelbuild and r/Framebuilding for construction of those components.

* r/Bikebuilding for discussing and showing off bikes built up from a frame.  See also r/xbiking.

* r/Vintage_bicycles/ for pre-1986 bicycles.

* r/bikecoops/

* r/whichbike/

Outlets for posts that don't belong here:

* r/BikeMechanics Discussions among bike mechanics, professionals and advanced amateurs.  Looser rules than /r/bikewrench.

* r/JustRidingAlong "Pictures and stories of some of the most egregious user-error and bad luck damage on bicycles."

* r/BustedCarbon

* r/BicyclingCirclejerk/

or just plain r/bicycling, which also has links to more subs.

<div class="md">A forum for folks with questions about bicycle repair.

Post your problems, and we will try to get your bike rolling again. It really helps if you can provide pictures and/or video.

A community of cyclists - some with questions, some answers

<h3>Post questions to get help.</h3>

Post your problems, and we will try to get your bike rolling again. It really, really helps if you can provide pictures and/or video.

You can also consult our <a href="https://www.reddit.com/r/bikewrench/wiki/bikewrenchfaq">FAQ</a> or the list of <a href="https://www.reddit.com/r/bikewrench/wiki/local_help">people willing to help locally</a>. 

Post Rules and Guidelines

<ul>
<li>Questions about bike repair only. If you just want to post a picture, this isn&#39;t the place for it. <a href="https://www.reddit.com/r/bikewrench/about/rules/">Full rules</a>.</li>
<li>&quot;Is this cracked / safe to ride?&quot; - If you have to ask, don&#39;t ride it. We probably can&#39;t tell from a picture just what condition your bike is in. Take it to your Local Bike Shop and ask them. If it&#39;s carbon, a specialist repair shop may be required. They should have the equipment and expertise to inspect it properly.</li>
<li>Please use the weekly thread for post follow ups and acknowledgments. Tag helpful commenters if you want them to receive a notification.</li>
</ul>

<h3>Comment Rules</h3>

<ol>
<li>Play nice</li>
<li>Stay on topic / No jokes, especially not false answers as jokes.</li>
</ol>

<a href="https://www.reddit.com/r/bikewrench/about/rules/">Full rules are here</a>.

<hr/>

Other Websites:

<ul>
<li><a href="https://www.sheldonbrown.com/">Sheldon Brown&#39;s Bicycle Technical Info</a>. A comprehensive resource with answers to common and obscure questions, data tables, etc., including a <a href="https://www.sheldonbrown.com/glossary.html">glossary</a> which also serves as an index.</li>
<li><a href="https://www.parktool.com/blog/repair-help">Park Tools&#39; Repair Help</a> including illustrated text and video guides to service procedures.</li>
<li><a href="https://www.reddit.com/r/bikewrench/comments/1w4zp2/questions_on_cold_setting_my_old_frame/cezbaat?utm_source=reddit&amp;utm_medium=usertext&amp;utm_name=bikewrench&amp;utm_content=t5_2sje0">Cold Setting Steel Frames</a>: adjusting the dropout spacing on a old frame to fit a more modern drivetrain. A comment with an overview and links to more information.</li>
</ul>

Other helpful subs:

<ul>
<li><a href="/r/bicycleengineering">r/bicycleengineering</a>: bicycle technology from an engineering perspective.</li>
<li><a href="/r/wheelbuild">r/wheelbuild</a> and <a href="/r/Framebuilding">r/Framebuilding</a> for construction of those components.</li>
<li><a href="/r/Bikebuilding">r/Bikebuilding</a> for discussing and showing off bikes built up from a frame. See also <a href="/r/xbiking">r/xbiking</a>.</li>
<li><a href="/r/Vintage_bicycles/">r/Vintage_bicycles/</a> for pre-1986 bicycles.</li>
<li><a href="/r/bikecoops/">r/bikecoops/</a></li>
<li><a href="/r/whichbike/">r/whichbike/</a></li>
</ul>

Outlets for posts that don&#39;t belong here:

<ul>
<li><a href="/r/BikeMechanics">r/BikeMechanics</a> Discussions among bike mechanics, professionals and advanced amateurs. Looser rules than <a href="/r/bikewrench">/r/bikewrench</a>.</li>
<li><a href="/r/JustRidingAlong">r/JustRidingAlong</a> &quot;Pictures and stories of some of the most egregious user-error and bad luck damage on bicycles.&quot;</li>
<li><a href="/r/BustedCarbon">r/BustedCarbon</a></li>
<li><a href="/r/BicyclingCirclejerk/">r/BicyclingCirclejerk/</a></li>
</ul>

or just plain <a href="/r/bicycling">r/bicycling</a>, which also has links to more subs.
</div>

I was just riding along...

t5_2sje0

A community of cyclists - some with questions, some answers

<div class="md">A community of cyclists - some with questions, some answers
</div>

Is your post relevant? 

If you have a question about fixing bikes, it belongs here.

If you just found a funny picture, or want to show off your bike, it does not belong here.

<div class="md">Is your post relevant? 

If you have a question about fixing bikes, it belongs here.

If you just found a funny picture, or want to show off your bike, it does not belong here.
</div>

Nutted axle question