i would choose depending on locationDown London - Disc lock, harder to cut than anything else out there (wankers more likely to cut the bike next to you with a chain)Rural Home / council estate - Chain to something Solid, (more likely to be a van theft - as you would hear a grinder in use)if you have the money there is also the tracking option - but we have fazers so prob not worth the cost(£179 + Fitting +£100 per year subscription for a datatool = but i have heard off some interesting alternatives in the pipeline)im not a fan of U-locks as they are solid linked so easier to cut (bar is easier to cut than moving chain) and hard to carrya big and bulky chain can be worn like rambos bulletbelt and disc locks can fit in a pocketUNDER NO EXCEPTION GET A THROTTLE LOCK THEY ARE USELESShttp://www.youtube.com/watch?v=Y1XKWhC_2R4
my security measures are simpleenter my premises and a naked man bearing a baseball bat will come running out at you !!!!- i feel shouldnt tell you where i live, otherwise you will all be on my driveway laughing with cameras
...currently making a security related video on an unbeatable alarm system - its so good even i cant disarm it with my keyfobso the last couple of days yes i have been at home totally traceable.
Back it up with a chain and a BIG bright coloured good quality padlock on the rear wheel if its being left for any length of time, it doesn't really have to be a super heavy duty chain because it someone is going to cut it with a 18volt battery powered disk cutter they will whether it is a 8mm link or a 15mm link, but it is a visual deterrent to the little foc pigs who want to go joy riding. Make sure the chain is of a length that it cannot be laid on the ground as it is difficult to cut a hanging chain with a hammer and chisel. Always use the steering lock.There is no way you will stop someone nicking your pride and joy if they are determined but you can make life difficult and that will stop the opportunist thief.
Quote from: tommyardin on 19 September 2017, 07:04:12 pmBack it up with a chain and a BIG bright coloured good quality padlock on the rear wheel if its being left for any length of time, it doesn't really have to be a super heavy duty chain because it someone is going to cut it with a 18volt battery powered disk cutter they will whether it is a 8mm link or a 15mm link, but it is a visual deterrent to the little foc pigs who want to go joy riding. Make sure the chain is of a length that it cannot be laid on the ground as it is difficult to cut a hanging chain with a hammer and chisel. Always use the steering lock.There is no way you will stop someone nicking your pride and joy if they are determined but you can make life difficult and that will stop the opportunist thief. In my knowledge and experience, there is a difference between an 8 and a 15 mm thick link. There is also difference between well hardened steel and cheaper, softer one. The main breaking point, so to say, is about 12 mm of well hardened steel. From that thickness, it is very hard to cut it with tools that fit under one's jacket to stay invisible. Also, that is the thickness that requires more than a few seconds with a battery run angle grinder - so there will be more noise and light from all the grinding sparks (English term? :/ ).No useable system is 100% hack proof, but the goal is to make it more work and more risk for the thieves than the other bikes. Of course, a garage is much better - out of sight, at least in my country. Another good thing is being nice to the elderly. Those people NEVER sleep and will always let you konw if they saw someone suspicios, or call you (or the police) if they hear some break&enter noise.
Quote from: Slaninar on 21 September 2017, 04:31:49 pmQuote from: tommyardin on 19 September 2017, 07:04:12 pmBack it up with a chain and a BIG bright coloured good quality padlock on the rear wheel if its being left for any length of time, it doesn't really have to be a super heavy duty chain because it someone is going to cut it with a 18volt battery powered disk cutter they will whether it is a 8mm link or a 15mm link, but it is a visual deterrent to the little foc pigs who want to go joy riding. Make sure the chain is of a length that it cannot be laid on the ground as it is difficult to cut a hanging chain with a hammer and chisel. Always use the steering lock.There is no way you will stop someone nicking your pride and joy if they are determined but you can make life difficult and that will stop the opportunist thief. In my knowledge and experience, there is a difference between an 8 and a 15 mm thick link. There is also difference between well hardened steel and cheaper, softer one. The main breaking point, so to say, is about 12 mm of well hardened steel. From that thickness, it is very hard to cut it with tools that fit under one's jacket to stay invisible. Also, that is the thickness that requires more than a few seconds with a battery run angle grinder - so there will be more noise and light from all the grinding sparks (English term? :/ ).No useable system is 100% hack proof, but the goal is to make it more work and more risk for the thieves than the other bikes. Of course, a garage is much better - out of sight, at least in my country. Another good thing is being nice to the elderly. Those people NEVER sleep and will always let you konw if they saw someone suspicios, or call you (or the police) if they hear some break&enter noise.Yes and the young women of eastern Europe are very hot too!
Quote from: celticdog on 21 September 2017, 11:58:09 pmQuote from: Slaninar on 21 September 2017, 04:31:49 pmQuote from: tommyardin on 19 September 2017, 07:04:12 pmBack it up with a chain and a BIG bright coloured good quality padlock on the rear wheel if its being left for any length of time, it doesn't really have to be a super heavy duty chain because it someone is going to cut it with a 18volt battery powered disk cutter they will whether it is a 8mm link or a 15mm link, but it is a visual deterrent to the little foc pigs who want to go joy riding. Make sure the chain is of a length that it cannot be laid on the ground as it is difficult to cut a hanging chain with a hammer and chisel. Always use the steering lock.There is no way you will stop someone nicking your pride and joy if they are determined but you can make life difficult and that will stop the opportunist thief. In my knowledge and experience, there is a difference between an 8 and a 15 mm thick link. There is also difference between well hardened steel and cheaper, softer one. The main breaking point, so to say, is about 12 mm of well hardened steel. From that thickness, it is very hard to cut it with tools that fit under one's jacket to stay invisible. Also, that is the thickness that requires more than a few seconds with a battery run angle grinder - so there will be more noise and light from all the grinding sparks (English term? :/ ).No useable system is 100% hack proof, but the goal is to make it more work and more risk for the thieves than the other bikes. Of course, a garage is much better - out of sight, at least in my country. Another good thing is being nice to the elderly. Those people NEVER sleep and will always let you konw if they saw someone suspicios, or call you (or the police) if they hear some break&enter noise.Yes and the young women of eastern Europe are very hot too!A quick one on hardening from what I know is that its better to have just the case hardened because when a fully hardened link is cut with a 4foot bolt cropper the other link shatters from the energy so with a softer inside both sides of the link have to be cut. An 18/19 mm chain is too fat for the largest bolt croppers to get a purchase in the jaws to be able to cut, wich then only leaves other noisy methods
For hardening - the chains without any case hardening are also easy to cut with bolt cutters.The trick is optimal hardness. Something Abus gets quite right with their Granig X-plus series of chains, U-locks etc. Not sure about other brands, since very few of quality are imported / available in my country.
Quote from: Slaninar on 22 September 2017, 07:58:57 pmFor hardening - the chains without any case hardening are also easy to cut with bolt cutters.The trick is optimal hardness. Something Abus gets quite right with their Granig X-plus series of chains, U-locks etc. Not sure about other brands, since very few of quality are imported / available in my country.Nothing is really theft proof, given enough time. Materials that can't be cut relatively easily with a grinder and the proper disk/blade aren't going to be cheap, They're also very brittle and hard to work with, and/or extremely heavy. However good chain link design helps by making it difficult to get a good angle and purchase on the chain when cutting through it.High carbon, high molybdenum steel is harder to cut with an angle grinder. The addition of carbide further wears the blade, slowing progress. The problem with high strength is increased brittleness. You'd have to use a fairly thick cross section and design it in such a way that it would be difficult to strike with force or difficult to pry apart with a jack. Steel like this isn't cheap and is hard to work with than other steels. It's a trade off between being saw and grinder resistant but more vulnerable to cutting torch or impact force. Making a chain that can't be cut with a diamond wheel on an angle grinder is a tall order. The paradox being in order to make a chain the metal must be workable, so the same means used to produce it can be used to defeat it, i.e. mechanical force and or heat. Buy the best you can afford.