Mikejones123

Do you know any low profile ground anchors for bikes out there in a market?

ridelikeaturtle

Google-search for "motorcycle ground anchor" and you should find something that folds flat (or nearly flat) that can be embedded in concrete.

Mikejones123

Thank you for your reply.

I already checked motorcycle ground anchors but they are all to big to mount on a wall.
Do you know any other ones that are smaller?

ridelikeaturtle

Too big? What size are you wanting? It has to be big enough for a chain to go through.

This one should do the job.




Anchor dimensions:
-Metal plate: 10cm x 10cm
-Plastic cover: 13cm x 13cm
-Height with loop down: 4cm
-Height with loop up: 9cm
-Center distance of holes: 6cm x 7cm
-Inner loop: 6.5cm x 5.5cm
-Note: 16mm drill bit required to bolt anchor to ground

https://www.amazon.co.uk/FD-MOTO-Har...R2W/ref=sr_1_5

Troul 

https://hiplok.com/ankr/
Hiplok

ridelikeaturtle

I'll be damned, that's pretty slick. Nice!

veganbikes

If you want security this would be the way to go.
https://mobil.abus.com/int/on-road/L...A-100?type=pdp

I would avoid no-name cheap stuff on Amazon, Ebay...I cannot imagine something for 20 bucks is going to be very secure and is probably full of weak points.

fietsbob

https://mobil.abus.com/usa/on-road/L...-Floor-Anchors

fooferdoggie 

Yep I installed one a bit of a pain drilling the holes with just a cordless hammer drill though.

veganbikes

Gotta get a concrete drill for that one or all the batteries and several strong friends. Take turns. Though I bet one could rent out a concrete drill or see if a local contractor could help out, sometimes a little extra money spent is worth not having to go through the pain and hassle. I have certainly paid people do stuff I can do but it would take much longer.

If it is a pain to install it should be an even more pain to remove.

fooferdoggie 

my cordless did it on two batteries but ya should have borrowed a drill. it is a cool design with steel balls in the screw driver holes it is almost impossible to remove without beating the crap out of it for long periods.

PJay120

This is a serious question.
Can you not pry these anchors out of concrete with a crowbar? Is there some part of it so that a crowbar cannot get in between anchor and ground, or would the screws hold despite crowbar leverage?
I know nothing is perfect, but a crowbar is a pretty obvious, accessible idea.

Moe Zhoost

Not low profile; however an alternative solution for a security wall mount: The Airlok system.

Troul 

why is it that all the common easy to find hang mounts use the top tube, but it's the one tube that should not really be used for suspending the bicycle's weight off of?

Moe Zhoost

Why is that? The stress of 150+ pounds on the bike while riding far exceeds the small stress of gravity when stored. If the top tube is the one tube not to be used, which one would be suitable?

unterhausen

I don't think I would hang a carbon bike from the top tube. It should be able to hold the weight, but it just seems like something could happen.

Moe Zhoost

Like what?

I'm not trying to dispute the above claims, just trying to understand the reasoning behind them. Objectivity is everything, right?

ridelikeaturtle

That'd depend a lot on the cordless hammer drill. A Dewalt DCH235 works very well... i.e., let the drill do the work.

As for ease-of-removal, of course you can remove anything. Again "it depends", on the material into which you're installing the anchor, the chain you're using, and the tools the thief is using. A determined thief who wants your stuff will get it. What you're trying to eliminate is the opportunistic scumbag, to give them the opportunity to choose something else to rob, something easier.

If you're looking for security, nothing works better than a noisy dog. Doesn't have to be a big Rottweiler. A ballistic Westie that explodes at anything walking near your house works.

fooferdoggie 

just a makita 18v cordless hammer drill just what I use at work for general work. but removing it would be noisy angle grinder or a sledge hammer or such is needed. its only designed to go into concrete.