How to lock your bike fast and secure
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- Опубліковано 23 січ 2025
- In this video I'm explaining how thieves are stealing bikes, how to prevent it and what bicycle locks you should use.
Bike lock I recommend - amzn.to/2CZyiPR
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Having had two bikes stolen, I thank you immeasurably for posting this well-crafted and informative video. You are awesome.
I have nothing but love for this brother.. Keeping us fed and helping us secure our property, perfect example of a human being ! Thank and God bless !
I like how you encourage this habit of how to lock up each time you stop and get off. I don't have near the expense into my bike but I still want to ride it. thanks!
Even more effective to actually lock your bike to a rock-solid object. Use two locks concurrently - Kryptonite New York Fahgettaboutit D-lock, and Kryptonite Evolution chain lock. If you aren't gone very long, no thief can angle grind both of those without drawing too much attention before your return.
D lock or U lock whichever one you call its so easy to unlock its crazy I've done it with a Biro pen.
If you don't mind the extra bulk, also use a bike cover, they're inexpensive and a very effective deterrent. Cost $15-20 US.
Repeatedly saying what does not work and adding 'don't be that guy', strikes home. Much better video than some others that are basically just publicity for this or that brand. Thanks.
Thanks for the good advice, I've had two bikes stolen in recent years. Stupidly used a cable lock on the first and had my second unlocked bike stolen from my rear garden! Now keep my bike inside my house and lock it to heavy bar stool.
Best place and safest place for your bike is indoors
I do agree that you have to be extra vigilant on what your lock your bike to! A fence, thin wood rail, posts that can be pulled up from the ground.... sometimes we just don’t think....
I remember a guy leaving his £4000 top of the range Beautiful brand-new electric bike outside McDonald’s completely unlocked for a delivery,
And in the blink of an eye someone stole it,
I remember the delivery driver screaming and shouting and wanting to fight all the other delivery drivers for not keeping an eye on it,
Like you say end of the Day it’s your responsibility
@@sewpungyow5154 The answer to that question Is NO. He only has himself to blame. Hard lesson to learn!
Electric bike. Lol.
You ALWAYS lock your rear wheel. It is where your cassette is located and is the second most expensive part of the bike. The only way it isn't is if you have a special locking spindle. And if you do, then locking the wheel is a bonus, but less necessary. Even then, the way you locked it, a thief can easily pick it up and walk away with it. If they have a truck, van, etc. then it is gone.
That elevator is NOT too small. You can easily pull the bike up into a wheelie (i.e. vertically) and it takes up about the same amount of space as 1-2 people. Easy.
However, I think the other points you have made are great. I lost two bikes learning what you've shown. Thanks for sharing!
Thank you sir, you convinced me to upgrade my u-lock to "orange" Kryptonite. I was using a cheap u-lock, as my bicycle is a cheap, old city bike. But still I like it a lot and would be really pissed off if I had it stolen without doing my best to protect it. For a long time I thought it makes no sense to steal such bikes but it happens more and more ofthen that these bicycles are stolen, not only 'professional' bicycles.
Excellent tutorial, much appreciated .
The attention to detail is impressive. I learned many things. Thanks.
Great video brother, always awesome when someone makes a youtube video that is aimed at actually helping somebody else. This video was very helpful. I just bought an Abus D lock and I didn’t know the best way to use it.
Thanks buddy!
I just bought an E-Fat Bike as an experienced rider besides the triangle, cables for other components and parking in a highly visible area with lot's of food traffic.
I opt for multiple locks I have the extended New U going though the wheel and the frame that holds the wheel, A cable to secure the front wheel and my Evo 4 around the wheel and frame.
I couldn't get my keeper chain around it however I may get use it to lock my wheel to another post since I have an AWD Ebike.
The more locks and the harder each one is to get through the harder it will be for a thief to steal my bike. When I go to school for Carpentry I'll even bring the battery inside with me so it's just that much more inconvenient to steal! My bike will be over 100lbs still!
Very good advice! God bless & keep you safe, & secure, in your travels. Amen.
Thank you . Recently picked up new secondhand bike , bit of a bargain so won’t be easy to replace at price . So will invest in above average lock.
Many thanks 👍
Exactly what I bought, thanks. A Kryptonite "D-lock" with looped cable for the front wheel. I bought another cable for the rear. I think it is a matter of a thief reviewing how long it may take to make off with the bike, and how much noise he may make. At home there's nothing to lock to in my shed but a large ladder. I hope it may cause too much noise to knock off the door lock, find no seat to sit on, then cut the cables. My brother had a Harley-Davidson motorbike stolen from his back yard.
Thank you, I appreciate you taking the time to make and post the video. It was very helpful.
I agree with you about the security of the d lock. I left a bike in front of an apartment overnight. Every component was stolen (handlebars, front fork, derailleur, etc.) except the frame and the rear wheel, which were still locked up with the D Lock.
That's crazy
those thieves must be the worst of humanity to steal components of a bike...
PinHead locking skewers, Delta locking skewers will prevent anyone from taking your wheels.. You can also put on the Kryptonite skewer (you have to turn the bike upside down to take off the wheels. Then use a heavy level 9+ D-lock for the frame and rear wheel.
Interesting
Very good clip. Very good tips. I wish I had watched this video 4years ago. Thanks for the info
Hi, this video shows you the right thing to do about making your bicycle less appealing and safe. I was wondering if a carbon frame, secured as hell will be damaged after a while because of the locks?
Thank you for your honesty, excellent video.
I wished I had seen your video before my first bike got stolen. I made the very first mistake you mentioned. I used only a cable lock. I was a Kyrptonite lock but still, as you mentioned, it doesn't matter. A cable lock is not first security. Believe me when I say I learned my lesson the hard way.
I bought a Abus and Andy lock. I had my ebike stolen last month but I had insurance. I ordered another bike that should be here within a week. My brother in law bought me three locks as a gift but one is a cable lock I figured I'd just use the cable lock to lock things like my Helmet. I'm going to get more quality locks and a GPS tracker.
What a helpful thing you have done. Thanks much.
I would say the chance of your bike being stolen is determined by the relationship between (an effort to steal it), (price of the bike), (risk of getting attention or caught), (ease to sell). The former, the more important variable they are.
Plus, looking at the bikes, if you park derailleur out, you're closer to the rail and have better chances to lock up the frame and tire...depending on one's bike configuration. Another thing? Looking at where you locked your bike, if I had the choice, I'd have tried to lock around the wider fence post, instead of the thinner rail. js I do like the idea of stashing the pedal within the U lock span!
Would a screaming motion detector help?
I put the dlock through the pedal as well, the cable part its more to inconvenience any potential thief, the dlock will make it almost impossible to ride
The onguard brute is sold secure diamond rated and costs about 70 CAD, but it weighs about 2 KGs, and you have to lubricate the mechanism once in a while, also it comes with a crappy mount
A good explanation is that people aren't risking their safety against a criminal with tools/weapons to save something that isn't theirs.
At 17 a friend and I spent a significant amount of time hack sawing off his D lock after the key snapped. No-one even looked twice.
Thanks for the excellent commentary and informative video - former Washington DC bike messenger here 1996-1998. I just shared this on a local stolen bikes group to try to educate my neighbors. Ride safe!
If you had one U lock and had to use only it to lock a bike, would you lock the frame and the front wheel or the frame and the back wheel? And why that wheel versus the other?
Back because it is more expensive as it has the cassette on
Great tip for also locking the pedal. Never thought of it. Good job on the video 👏
Whenever taking my E-bike out, Always lock it up w/Bullox U-bolt thru pedal sprocket & Rottweiler 30mm/1.2in armored cable lock thru rear-tire. Worked Too Hard to let some chronic walk off w/my bike!
Great tips. Thanks for sharing.
You should come to Critical Mass in Leeds! It's a spontaneous, unorganised mass cycle ride that takes place every last Friday of the month. Meet at the steps to Leeds city museum at 6pm!, but also check the facebook (there's a group and page for the Leeds Critical Mass - just search). It's a celebration of the alternatives to cars and anyone is free to join and leave with no chosen route. There's boom-boxes, lights, tall-bikes, the lot !
Great video. Best tip is “don’t go for bullshit.stay with trusted locks”..thanks
I use a portable electric fence used for bear protection around your camesite. I cut it down, and it only requires a lithium 12v battery to operate. if someone messes with it, it will short out the wire that is in the saddle. It will shock their balls if they try to ride away without turning it off, cannot be turned off without a key.
Hahaha! That is awesome idea 👏👌
Get a U-lock that is at least 18mm thick like the Kryptonite fahgettaboudit mini, this lock cannot be removed with a bolt cutter, but the other most important thing is an alarm that can TEXT you when the bike is disturbed so that you can get to it before anything can happen, time is the most critical factor.
I've never seen that much railing anyplace I've lived where it amounts to that much locking space for bikes, even long ways in. At most we'll have one averagely configured bike rack by a store and you couldn't reasonably lock sideways because it would remove too many potential spots from others. One thing, there are some very good and beefy chain locks out there in the same security category as the better Kryptonite U-locks like the Orange Evolution series. I have one. It's 10mm link size, and they can't bust through them with large bolt cutters either. They are heavier by a couple of pounds though.
I'm going to buying ten of them thank you so much for the idea is fun
Good video, I lock my FRONT wheel and frame with D lock because front wheels are stolen more often and easier than rear, also rear gears may not fit, but front wheels almost always can be used by thief
I use Hexlox security skewers on my wheels. I have a video on it. Check it out!
@@CyclingHabit thanks will check out!
I have had three bikes stolen from me absolute nightmare and the Police are just not interested, Thank you good video.
D- locks are more secure if the shackle locks on both ends, as he said you need an angle grinder to cut them open (but not in 2 minutes, more like 30 seconds per cut) and not your average bike thief carries one of those, but lets assume they all do: on a D-lock that only locks from one end (like the one he uses) you need to make just one cut and the side of the shackle that is not locked to the locking lock just falls off and the bike is free; on the other hand on a D-lock that locks on both ends of the shackle you need to make two cuts to free the bike from it, doubling the time the thief will need to take your bike. As this kind of locks have a bent outwards end they´re easy to recognize and thieves with angle grinders go for them first.
Great work, great content, thanx.
OnGuard Brute U-locks are among the best. I have 3 of them on my motorbikes/bicycle and no one's attempted to cut them. Bit heavy (1.7 kg) but no one is bolt cropping 17mm hardened steel. Even the 14mm Pitbull cannot be cropped even with 40" croppers. Also get a set of security wheel nuts/skewers for extra piece of mind.
Thank you for your time and sharing your knowledge. Very helpful. :)
You just put me off riding to work again! Great, honest video, btw :)
I Had a schwinn ,less than 30 day old bike ,stolen years ago in Philly.It was my stupidity , I used cable to lock outside office building 16&Market. I now carry two Kryptonite locks, main one is an evolution, about 7-10 lbs 😤, but I learned my lesson haven’t had bike stolen again since. Couriering all over Philly, From Camden,NJ (E) to University City (W) to Temple University (N) To Oregon Ave( S)
techsimmons Most krytonite kocks come with bracket to attache to bike frame, 5second head start and the average thief is gone, i love my bike too much🤪 i ridelike i did as a kid at nearly 50 , and it keeps me young😉
I just take my bike with me wherever I go. Best security policy, but not always an option for most.
I did this same thing and actually got lucky most of the time, I left my bike out maybe 7 times, but the final time it got stolen; funny enough that was 2 months after I decided to buy a lock and the lock was mounted on the bike when it was stolen, yet I didn't use it lol. Lesson, learned though and I had actually been lucky considering how long I had the bike lockless and risking it, but that day in particular my mind was all over the place. Just bought a new one and will not make such a dumb mistake again
Yo vivo en una zona algo peligrosa para robos asi que tengo un candado, aunque nunca he necesitado dejar la bici en la calle de noche o en un lugar solitario.
Sin embargo, a estas alturas, ya pienso comprar un candado más seguro que el actual, es una gran molestia perder algo que ya tienes y por lo que tendrías que reajustar presupuesto o dejar de tener algo planeado para solucionar algo que ya tenías.
Glad I use 3 u-lock, abus granite extreme plus 59, kryptonite New York forgetaboutit, and onguard brute.
How about Luma ulock?
Great video man, I'd like to add a recommendation for a D lock manufacturer: Pragmasis. Their DIB series D locks are 16mm shackle, Motorcycle Gold certified and reasonably priced too
Yeah, the Abus Granit X Plus 540 is great too. Pretty much the only thing I'd use even though I do have an arsenal of locks from over the years, can find the mini one for under 70 bucks sometimes. It's only a 13mm shackle, but since it's squared it's considerably thicker than a 13mm round shackle. Sold Secure has a new diamond rating and I'm pretty sure the Pragmasis was upgraded to bicycle diamond along with the Abus Granit X.
Good ideas, thanks
How about ABUS bordo locks, are they any good (the expensive ones like model 6000 / 6500)? Cheers from DK
Very easy to split the links with a right tool. Quiet and spark free. I would choose this lock for it's compact size when bike touring and leaving my bike outside my tent overnight. In a city its a no no.
Cycling Habit Well... What should I then buy for the city?
Hiplok D1000 the best in market right now!
Moreover, don't ever let your bike get out of your hands even if you are standing there. Here is a true story. I was at the gas station filling the air in my tires (this was before I owned a floor pump and I would only use my frame pump on emergencies because it was a PITA to put just 10lbs in let alone 35!). At the time I had a $900 bike, which for would be about $1500 today. It wasn't super top of the line, but was the best bicycle I had ever owned at the time. Well this rough looking fellow rode up on a BMX bike. He was about 35, dirty, with stringy blonde hair if that gives you any idea of the type we are dealing with here. As I was filling my tires I had a good grip on the frame the entire time and I could see him looking at my bike out of the corner of my eye. When I was finished with the air hose I let it go (I wasn't about to get close enough to him to hand it to him). At that point he made a remark about my bike and gave me a compliment. I said thank you and started walking away. He was next to me asking me if I know how to check the frame for cracks. I told him sure (I was trying to just get rid of him). To which point he started to explain (and demonstrate on his own bike) that you have to stand on the pedal while holding the bars with your other hand (I knew it was complete bullshit, but I played along). Then he asked me if I want him to check my bike out. That was when I went from yellow alert to red alert. I mounted at that point and just took off - leaving him in the proverbial dust. I'm convinced that had I taken my hands off that bike for a minute and let him have it he would have been gone. I don't think I was going to be able to catch him on the BMX bike that he would have left behind (which was a cheap Walmart bike).
Damn! Thank god you knew that bastard was trying to fuck you up.
@@equilibrium8144 I grew up on the streets, so I saw my fair share of madness. I think that probably made me more sensitive to those kinds of things than someone who wasn't exposed to those kinds of things. I drive my wife crazy. She calls me "detour man" because if I see a transitional space that might put us in danger I will move to avoid that space. If I see someone acting not normal, and, again, growing up on the streets you start to recognize predators, I will move to avoid confrontation. I like to think I try my best to keep my family safe and insulated from that crap.
@@BitwiseMobile you are good, pal. Respect
Too bad, I just found your VDO after my bike was stolen last Halloween. Also, you are so RIGHT, nobody cares and it wastes a lot of time to find a new one that suits what we need.
I’ve started walking my bike into shops and businesses with me. I get a lot of amused looks, but so far no protests. I haven’t tried a restaurant yet.
Location definitely doesn't matter, and don't count on CCTV. I locked my bike up on bike rails installed right in front of a station in London. It had 3 CCTVs a just 4 meters away, so it looked perfect. Didn't matter, someone took an angle grinder to my D lock and the cable just fell out too. Called the police, but it turns out none of the 3 cameras were pointed at the bike rails, even though they were just a meter or two away from the entrance of the station. The thief kindly left a small part of the Kryptonite lock so I could claim insurance that comes with the lock, buuuut guess who didn't bother registering? Always assume the worst, mark your bike, register it, take pictures if you ever change any components, record the frame number, and ideally all of the components so you can describe it perfectly if police are lucky enough to retrieve it, and get insurance.
Best thing that can stop thieves are people. They need to act, speak up, confront them and other people with police and justice system should support them.
Sadly right now, we are seeing other approach - leave everyone, shut up, mind you own business and keep walking.
If I saw someone cutting chain with angle grinder, they would have to wait for police, beat me or give very good explanation even if it was real owner.
@@MrVolodus If you're comfortable risking your safety for the property of someone you've never met by confronting a thief when they've been caught red handed with something that could be used as a weapon and may have little to lose, more power to you. How would you feel if you suffered a concussion, a permanent scar on your face or worse to protect a bike someone could have had insurance on?
@@RamiAbdelal But that is my point!
Everyone is staying safe, not risking anything and thieves know that and use that.
This behaviour cause more and more stealing since it is no risk. They know that they are safe, unless police is around.
For you, this situations are always bad, since you may get hurt, spend day or two at police station and even get charged yourself.
But it is only thing that can really have impact. Sometimes even just yelling helps.
Sorry for loss, l had several bikes stolen, heart breaking. Did kryptonite honour their guarantee. Also what bike insurance you use and recommend??
@@kariahlukemacchan2230 They didn't because I didn't even register! Best bike insurance depends on your situation, if you're from the UK use moneysupermarket, otherwise use some other insurance comparison site to find an affordable plan that covers your needs. I've got a £40 a year plan for a £650 bike.
I'm gonna buy an electric bike soon but is it the same principle when locking those bikes as regular bikes?
Same. Secure the battery!
If you can't secure your battery.....take it with you, same goes for anything else you can't secure.
I use two D locks and take my good leather saddle with me 👍
What do you think about frame locks? Are they good enough?
What are frame locks anyway?
@@CyclingHabit you can google and see the pics. That how it's described: "The frame lock are basic security devices for almost any bike. These practical frame lock is light and quick to use to protect your bike against unauthorised use. They can be connected to other accessories such as chains or cables to protect your bike even more effectively against theft."
Bro I am going to start riding for Stuart courier this week, is there any bike brand model can you can recommend me to buy for 150 whether 2nd hand or 1st please thank you?
you haven't got much choice with a budget of £150. just buy any second hand road/hybrid bike in decent condition and go from there. Hopefully you'll save enough for your next bike soon!
@@CyclingHabit respect for the reply bro 👊
Which city u starting in for Stuart?
@@stuartrideruk Birmingham, just got my bag today waiting on the rest of the details
@@shahid8344 nice bro. I'm with Stuart in Newcastle. Best of luck! 😁
Lockpickinglawer is a Great person to watch for bike locks he covers a fair bit even bosnianbill
Get a U-lock that is at least 18mm thick like the Kryptonite fahgettaboudit, this lock cannot be removed with a bolt cutter, but the other most important thing is an alarm that can text you when the bike is disturbed so that you can get to it before anything happens, time is the most critical
factor!
My cable lock is rubber coated with .99 mA running through it and when they cut ZAPPED
bro what about your front wheel?, what about your seat? i think u should protect those 2 things too
They are protected by Hexlox. Watch my video about it
The D locks usually come with a cable so you can lock both wheels and the frame to a pole or or whatever you're locking it too
I use locking skewers to protect mine
Liked & Subscribed. Thanks man for sharing your tips. Ride safe bro.
How many miles roughly do you put in each day?
No idea
Unfortunately, I used a stupid cable lock & got my bike stolen. I wish I would have seen this video ahead of time.
Helpfull tips , thanks
Thank you very helpful for bike locking
6:03 he said they''ll just cut that with scissors 😂😅 I'm dead!!! But deadass tho
And have the d lock have both bars with locking hooks instead of just one so the thief need to cut 2 bars instead of just one
Saying nobody cares about your bike isn't exactly true the thief clearly does.
Just a question, what if the customer doesn’t accept the order from you? What do you do with it?
You get it
Glad got a folding bike. Have mine with me all the time. If a store/coffee shop won’t let me inside I’ll just bike to another store that will allow me. Or just go home. 🙂
what do you think about litelok?
Overpriced gimmick. Takes few seconds longer to cut through with bolt croppers
@@CyclingHabit trusty d lock it is then
It's one of best locks for bolt croppers, but weak with angle grinders. I have one with a kryptonite D lock. Best of both worlds and would slow down most thieves. No locks are 100% to theft.
2 - 5 minutes to get through a d-lock with a grinder? what locks are you using? i have tried many and yet to find one i can't get through in a few seconds with a grinder
Nah sealing motorbikes is more useful for a grinder then a bike
@Craig Emenaker they do make tons of noise but i have walked through the middle of the city centre and seen people taking grinders to bike locks, these thieves are so brazen
How safe is your bike lock ua-cam.com/video/pywN558dJaU/v-deo.html
I agree but it also depends on how the lock is placed on the bike and if you have to cut it more than two places. A strong D-lock in a tight space properly attached is a much more difficult to go thru than one that’s just hanging loosely on the top bar.
I remember you gave me the same advice last a few years back when i start the game in Leeds Nice one bud.
I hate to see people leave their bike out or with a piece of wire for a lock. The more people who get educated about the fact someone take it from you in under 10 seconds
Seems like the only people who care about your bike is the thief who wants to steal it
Great job... Most of it I already knew... But some people say D locks are the best and some say heavy square chain
Chains are heavier and less convenient, although give you more options what a bike can be locked to. However, the time it takes to cut a chain or a d lock with an angle grinder is similar.
@@CyclingHabit Besides giving you more options and flexibility to lock your bike, I also heard that D and U locks are easier to hold still while using the angle grinder, while the chain will move around and will be harder to hold still.
Solid great advice!
Also, if you have disc brakes, put a decent padlock or 2 around the disc rotar’s, along with 2 D locks on the frame if you have 2 but 1 is ok. With the padlocks on the discs it can’t be ridden away easy either. Just adds extra security and takes more time an hassle for a bike thief. The more locks the better IMO
High chance of bending the rotors, also it is not recommended to touch your rotors with hands as you might contaminate the rotors. Also very inconvenient ant time consuming. Lots of extra weight. This advice is good for motorcycles, not bicycles
I use 2-5 locks. Depending location & time.
1) Masterlock streetcuffs 8200 -and/or- 8290 9-link
Frame to pole.
2) Kryptonite fahgettaboudit u-lock. Securing drive-side crank arm thru both chainstays. &
2nd whenever using suspension fork. Fork to downtube. (fork stuck in turned positioned)
3) abus bordo 6000
Front wheel to frame. If possible also anchor point.
____
Streetcuffs are enough to deter theft just by looks
ULOCK on crankset and fork = bike inoperable with wheel locked
3 different types of solid metal locks. Different types of knowledge needed to steel
A few months ago I seen 7-8 guys beat the living shit out of a bike thief with his bolt cutters. He won’t be stealing anyone’s bike for a while I’m sure.
The main problem with D Locks is they can be lethal or cause you serious injuries. Carrying the lock in a back pack or anywhere around the body is dangerous in the event of a accident. Landing on a D Lock will break bones and cause massive internal damage.
Always use the frame carrier supplied. Problem is it looks rubbish and the fixing brackets aren’t good for carbon fibre bikes.
I use a motorcycle chain which is still dangerous when carried but less so than the D lock.
So broken back when you fall off or broken bank account when it’s stolen....... you can’t win either way.
@10:30 you want the lock on the back tire to the frame to prevent some guy from rolling it away. Not the front. He will have to carry it home instead of rolling it home
Thank you
HAD YOUR BIKE STOLEN ? - The first place you should look 1 week later is gumtree. Especially a WOMAN CALLED Kate in Cheltenham in Gloucestershire on gumtree, your bike will probably turn up there. Good luck !
Your right about a good hardened steel d lock ,but maybe a bit too optimistic considering a portable angle grinder with a thin kerf profile ,will make short work of ANY D lock.
One thing that wasn't mentioned was , appearance.
Bikes with fancy paint jobs will get the attention of a thief before an old beater bike.
If i had your job and was under constant threat of having my bike stolen, i would strip all decals off and paint it with a dull grey primer. keep the gears oiled and the brakes clean , but avoid washing your bike . It won't rust because nearly all newer model bikes are either aluminum or carbon fiber , so it can be scratched and nasty looking . MOST thieves won't give a second look . Only a super professional thief will see what's behind all that grime.
I have bike insurance only 3pd a month, should have big sheds with security guards watching all the bikes in town centres an you pay a quid or so for them to watch ur bike and use mobile phone codes to show the security guard to get ur bike back or a passport etc.
Best Lock are Hiplok D1000.
06:39 So I was given one of these deceptively flimsy locks with a "bike buyback program" from Cicli Sergio Bianchi in Florence. You buy a simple bike for about 150 euro, they buy it back for 75 euro at the end of your vacation. I locked it on the 3rd day near a church to listen to the choir, and came out to find the lock cut (seeing how shitty the construction is ... just thin aluminum case with a thin cable inside!) and the bike gone. I showed the cut lock to Cicli Sergio Bianchi, and they shrugged and said, "Next time buy chain!" Well, why did they give me this piece of shit lock in the first place? I think it's a SCAM where they sell the bikes, then someone goes around and cuts these locks to steal them back. Happy ending: My travel insurance covered the full 150 euros, so free bike for a few days.
In NYC they defeat D-locks in seconds with a nail-gun. I recommend a manganese chain lock. Abus or Kryptonite Evolution.
Both with an disc alarm. Three locks.
Someone stole my seat and post and the band that the light attaches to. All up, cost me $105 to replace! So I bought a Kryptonite Dlock with the cable to run through the wheels and saddle.
I would use anti theft skewers for the wheels and antitheft bolts for the seat post and saddle
Get a set of security skewers / bolts. I just bought a set of TranzX and they secure the wheels and the seat post for £11 / $15. Well worth it.