Post to set in concrete for locking a bike?

[paranoid bob]

Anyone know where I can get a good post (maybe something U-shaped) to set in a concrete floor in a shed or garage for locking two bikes securely (with D-locks)?

thanks

[Jonathan Schneider]

Lots of that kind of thing at motorbike shops.

Jon

[Peter Clinch]

A quick google throws up

association with them, just a first obvious stop from googling.

You could use something smaller, but the niice thing about a Sheffield Stand is you /know/ it will work!

Pete.

[Geoff Berrow]

Message-ID: from Jonathan Schneider contained the following:

Like this

[Brian G]

I used a shed shackle

) instead of a ground anchor or post. It allows you to place the attachment point at the most convenient height (although it has to be against the shed wall of course). It's not as secure as a concrete solution, but any thief would face making a great deal of noise and commotion in nicking the bikes provided you secure them to the shackle with sound locks (if you believe there are such things after the recent youtube revelations!)

[jg.campbell.ng]

Assuming the floor is already set and lack of desire to get involved with a jack-hammer, I wonder how much more time such a thing would give you over fixing to, say, substantial shelving or a bench that cannot be lifted and the lock slipped under.

Just thinking weakest link and what could be done under cover of a garage. Plus, avoiding d.i.y :)

Best regards,

Jon C.

[The Medway Handyman]

[Ian Smith]

There might be a good reason why you want a post, but I prefer a chain. Good solid heavy chain, with links big enough to put a U-lock through.

Break smallish hole through slab, hollow out cavity below slab. Put chain in with a bar through each of the end two links. Make the bars longer than the width of the hole. Fill hole with concrete (one with a small aggregate - say 10mm).

The advantage of chain is that a long piece will take several bikes and other stuff too (I like to lock up ladders). Also, if you ever want to put a car in the garage (for some reason) you can just drive over the chain, if you take the bikes and ladders off first.

Motorbike dealers are one source of big chain.

Alternatively, I've had reasonably good service from

, both as a private individual and as a company. There are a few post-like things at Ian SMith

[Jake]

Search ebay for "ground anchor"

[paranoid bob]

No, it isn't built yet.

[chrisj.doran]

duty rings (like the top portion of that ground anchor). But they only end with a stubby M8 (I think) thread. Maybe you could find a way to embed a matching nut in the floor or wall (rawlbolt?). The price will be rather less than =A329.99. I don't guarantee "5 minute attack tested against saw & sledge hammer" though :-)

Chris

[John Hearns]

nay help?

[Adrian Godwin]

How about a car suspension spring, placed on it's side ?

-adrian

[paranoid bob]

Thanks everyone for the good ideas for locking a bike close to the floor, but I want to hang the bikes from hooks in the ceiling (not park them on the floor) so I need something that sticks up 2 or 3 feet, maybe with big loop near the top, so I can lock the frames at that height.

So far the Sheffield stand is the most suitable thing suggested.

Anyone seen something similar (a big upside-down U that is) but narrower? (I mean with the two vertical sides closer together.)

[Rob Morley]

Why not just go to a local steel fabricator and get him to weld up a bit of box section to your design?

[paranoid bob]

I'll try a motorcycle shop first, and then look into having something custom made.

Thanks, everybody, for the suggestions.