I want to change my bolt because it is rusty. I am concerned that something bad will happen if I remove the bolt completely.

Can someone please tell me if it is okay to remove this bolt completely?

There are three bolts in the picture and all are rusty.

Your quick answer would be helpful to me.

enter image description here

  • @AdamRice Picture appears to have been fixed - this comment can now be deleted.
    – Criggie
    Sep 9, 2017 at 11:22

3 Answers 3


From the picture that seems to be the brake lever clamp. The bolt can be removed, cleaned or replaced and reinstalled with no problems.

Make sure to note the position of the lever in case it moves or falls off when the bolt is removed. You can then position it properly when you re-install the bolt.

  • Yeah, the shifter/brake lever/whatever will almost certainly twist and slide on the handebar a bit as you loosen the bolt, but nothing should fall apart. Just take a little care to position things properly after you install the new bolt and before you tighten it the final few turns. Sep 7, 2017 at 0:39

That is surface rust.

You can remove the bolt and clean it off using sandpaper and then a rust fixer like "rustbuster" and then paint it to keep the rust away. I find grey primer spray paint works well enough once hardened. Never had much luck with chrome-paints though.

You should apply some penetrating oil before undoing the bolt, and make sure your hex tool is well-seated in the bolt before applying leverage.

There are three bolts pictured

  1. the smaller one at the top of the photo is part of the lock-on clamp holding the grip in place. It can be removed, there is likely no nut because it threads into the clamp. There will be a matching bolt at the outboard side of the grip too.

  2. The big bolt closest to the middle of the photo is probably holding your brake lever to the bars. It can be undone completely. There is a medium chance of having a nut on the other side, so don't loose it.

  3. The bolt at the bottom of the photo will be holding your gear levers in place. Same as for the brake lever, this can be undone completely and some chance of a nut.

Without these bolts in place you should not ride the bike until they are replaced. Your brake lever and gear pod will slide around the bars and would be unsafe to ride. If you need to ride your bike to the shop, take some tools and undo the bolt once you get there. Fit the new or refit the old one before you ride home.

Be mindful of the angles when you refit a bolt, and make sure the tool is well-seated in the socket before applying torque.


If you want to replace it, just remove the bolt, take it to a hardware store or your local bike shop and find something of the same size.

Nothing bad will happen if you remove it.

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