I want to make a big piece of concrete to secure my bike to…advice pls
Buy a length of good high grade steel chain, embed half in the wet concrete.
Might reduce the issues of having a lump of concrete with a big steel bar or hoop sticking out of it and you bashing your frame/elbow/cat off of it.
But serously you weren’t really going to “drill” into the set concrete were you?Posted 4 years agothegeneralistMember
Get an old car tyre from ATS or somewhere.
Get some old wire fence netting.
Get some bricks and or pebbles, and cement
Tip the tyre on its end. Stuff the wire in so it ‘fills’ the whole tyre.
Fill the bottom of the tyre with bricks/stones. Fill the spaces with concrete.
When it dries, rotate it slightly and repeat the stones/concrete thing.
Repeat until the whole tyre is stuffed with reinforced concrete.
Wrap in polythene to keep everything clean. Finish with Duck tape.
Voila, hight security Polo mint. Around 60kg for a fairly small tyre. You can roll it round to move it but once a bike is locked to it you can’t move it.
There is no small section for a thief to bolt crop.
The rubber protects the concrete from hammer attacks.
etcPosted 4 years agoderek_starshipMember
I’ve ordered a ground anchor kit but instead of ground, I’ll be bolting it to as big a chunk of concrete I can manage. I was thinking of mixing and allowing to set in a 13 litre galvanised bucket. This would create a 30kg weight. I will then drill into the concrete and fit the ground anchor with 2x Rawl bolts. I’ll then chain two bikes to the concrete and hopefully have an undesirably awkward lump in the eyes of scumbag thieves. Also I’ve got a good shed with security hinges, bolt + good padlock and a wireless PIR that will trigger the main house alarm.
Any advice on the concrete bit would be appreciated.Posted 4 years agowobbliscottMember
It’s never ideal to keep thousands of pounds of bike in a couple of hundred quids worth of shed. Maybe a shed upgrade to something more secure in the first pace is what’s needed? Thieving eejits simply dismantled half my shed after I fortified it after it was broken into. They just removed nails and took away half a wall. Did it while I was in too so must have been quick and quiet. So I ended up with a trashed shed and a nicked bike, though the bike wasn’t expensive.Posted 4 years ago
I’ve done this. It’s a great solution in my opinion.
I’ve got a bucket with two loops in – it’s about 60-70kg.
I used the ready-mix stuff for fence posts. it’s a lot easier to get to an even consistency for putting in a small space like a bucket. the normal ready-mix stuff has big lumps of stone in and it’s really hard and messy to get it even for a small space.
it will be difficult to use the ground anchor as you need to sink it in deep enough so it can’t be pulled out whilst leaving enough outside the concrete to get a chain/ lock through.
EDIT – loving the tyre idea.Posted 4 years agotoby mcMember
Old calor gas bottle (empty!). Take reg union off, fill to brim with water, drain. Angle grind a hole in the base, cut 2 holes in the cylindrical section, feed suitable length of hefty chain through the holes and bung up the hole in the top. Turn upside down, fill with concrete. If you were clever, you’d have joined the chain together inside the cylinder already – which is what I’ll do next time.Posted 4 years ago
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