Ground anchor - use in wall?

Sep 28, 2025 Last reply: 1 year ago 5 Replies
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First reply

Roger Hayter

I bolted my daughter's trail bike to a wall and it was gone by next morning. It probably depends on the quality of the brick anchor!

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My security chain set up for locking my bicycle on car/motor home racks came with a ground anchor.



Around the outside of the house is block paved, bedded on sand and separated by sand, so anchoring anything to that would be pointless.



I am wondering how effective it would be to bolt it into a red brick wall. Not the same as bolted into solid concrete but perhaps better than nothing.



Or it may just split a couple of bricks.



Cheers


Dave R


I bolted mine into the brick wall. Seems solid but I no longer use it

Dave

I bolted my daughter's trail bike to a wall and it was gone by next morning. It probably depends on the quality of the brick anchor!

Is it a metal expanding anchor bolt? They're fine in brickwork, but try to find a solid bit of brick away from the frog.

You can get a decent fixing in brick. If the bricks are soft, then using a resin anchor[1] will give a good fixing. However keep in mind that any metal fixing will not last long against a cordless angle grinder.

[1] I normally use M12 threaded bar, into a 14mm hole. Then 2 to 3 pumps from a mastic gun with something like Fischer VL300 Resin. If it is a solid brick wall (i.e. no cavity) then you can go deeper into both leaves (and 4 to 5 pumps of resin).

E.g. mounting uprights for handrails:

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John Rumm snipped-for-privacy@nowhere.null wrote in news:10bdkj2$2tc4n$ snipped-for-privacy@dont-email.me:

Seconded on all counts plus:

  1. Go deep: If your security anchor is worthy, drill through to the internal bricks in a cavity wall, resin secured all the way through.

  1. Use shear nuts to secure the plate to the studs.

Additionally:

  1. I would never leave a decent bike or motorbike in a visible location, even at the rear of a property, it will just go.

  1. For a bike I would build or buy a shelter in which it would be secured. Outer loudly alarmed if it was a dodgy area. I am in favour of 'shelled'/'onion' security, light on the outside but alarmed with heavy inside to delay removal under painfully noisy ear action.

Being aware that:

  1. Locking a bike does not stop the theft of ancillaries. I advised a mate to securely lock his nice MTB in his locked shed. He later found his bare frame still securely locked in place and later he observed a chav down the street going around on a recently upgraded ride bearing highly similar but untraceable new components.

Additionally:

  1. In a similar situation I have cast a chain into a concrete block of about 600 x 600 x 800 and placed it in a shed to secure a decent bike.

  1. My bikes are pretty well secured even when inside my home.

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