The Altor SAF Lock is the world's first angle grinder proof bicycle lock. Angle grinders have become the new norm in bike theft, yet every bike lock on the market is only designed to protect against hand tools. At Altor, we've been making and selling bike locks for years and have seen first-hand how destructive angle grinders can be. It became our mission to do the impossible.
We created the best, most secure bike lock in the world. Made from a 14mm hardened steel shackle, wrapped in our patented aluminum shell, and attached on both sides to a double-locking cross bar inside a hardened steel case, the SAF Lock will defend your bike against even the most determined attack.
The SAF Lock Features:
- A 14mm hardened steel shackle
- Our patented aluminum protective shackle
- 80mm shackle diameter
- Double Locking Cross Bar
- High security disc detainer lock mechanism
- Soft Outer Coating to protect your bike
- 6.2 kgs total weight
- 200 x 280 mm outer dimension
- 80 x 140 mm inner dimension
This Package Includes:
- An Altor SAF Locks
- 4 matching laser engraved high security disc detainer keys
OK, I've owned the SAF Lock for just over a month now and here's my initial review:
1) Shoulda named it "Ludicrous!" or "Absurd!" It's laughably large. Impressively heavy. It dwarfs any other typical bike lock out there (Squire padlocks and Almax chains aside). I pictured it next to my Kryptonite NY Fug and K4 mini for perspective. But that said, it fits in a pannier and can be carried if you need to.
2) I've been carrying it on the bike to use for short lockups. It's heavy and affects bike handling, but not any more than a visit to the grocery store for supplies.
3) Entering the keyway is a bit challenging. Hard to find "blind" by feel with the key tip. I'm very experienced with all manner of locks & keys and have no problem using most keys "blind." Well, this one is hard if you don't orient the key the proper direction. And the proper direction is not parallel with or perpendicular to the plane of the lock. It's at a strange angle and I still haven't become accustomed to where that is. This is a minor inconvenience.
4) Sticky on and off. ALTOR put two dimples of rubber on the shackle tips to give you a solid "clunk" when the crossbar has fully closed. Sometimes it's harder to close, given the balancing act between the heavy shackle and crossbar.
5) Ease of locking the bike:
- First off, my usual locking option was out right off the bat: through the rear wheel in between the stays to a post because the shackle's WAY too big for any traditionally-spoked wheel. Would work with a paired spoke wheel like Rolf, et al though.
- Second, I DO NOT lock via the top tube. Too easy to cut the frame. I feel Altor's advertisements with the lock casually hanging on the top tube invites frame cutting.
- Third, for my horizontal top tube frame, the SAF lock will not pass through the head tube as I originally hoped. Top and down tubes are too close for the SAF Lock. This will be true for anyone riding small(er) bikes or those with top and down tubes really close where they meet the head tube. This bummed me out because I advocate for head tube locking for added security (two tubes to cut, cables & stuff in the way).
- Fourth, I lock the seat tube. For two reasons: it's almost vertical and that makes locking straight across horizontally to a parking meter or bike rack easier. The seat tube is harder to cut. It has another tube within it - the seat post. I actually went out of my way and ordered a extra-long post to make frame-cutting harder.
- Fifth, It occurred to me that the seat tube can be reinforced two more ways: 1) Add something within your seat post to prevent angle grinder attack. A steel or aluminum rod or a length of old chain would work. (Sure, they might rattle around, but that's easily fixed with an old inner tube or plastic tubing.) Yes, this adds weight, but for some of us, it's worth it. 2) I'm thinking of bolting on a piece of 1/8" or 1/4" titanium stock (or even 90-degree angled stock) to my seat tube water bottle bosses as an additional (and visual) way to deter thieves considering cutting my frame. A length that would fit between the down tube at the BB and the top tube at the seat cluster would fully protect the seat tube and act as a good deterrent.
6) I'm glad to say the Altor fits around the "reinforced" parking meter poles that were popular a decade or two ago in some urban areas. The old mini locks often didn't fit the diameter.
7) Since I was no longer able to secure my rear wheel with my u-lock anymore, I realized I needed to incorporate a longer cable leash for both wheels now (in addition to using secure skewers). However, the loop on most cables is not nearly large enough for the Altor SAF. BUT, have no fear! Just use one loop end as a slipknot and bend a section of the cable tightly and run it though the loop. You now can secure one end of your cable after slip-knotting it through your front wheel!
8) 4 keys!
A neighbor on ND just had his secure garage broken into and his Kryptonite NY chain easily cut through and his bike stolen. And this is within a context of non-stop reports of burglary and bicycle theft. It's out of control, folks! So spend some time on bicycle (and home) security. If you're like me and own custom, irreplaceable bikes that mean a LOT to you, spend some dough, time and thought on safeguarding your valuable toys. Maybe add a Ring-type, WiFi-enabled, motion-sensing video camera.
So, I hope this review helps. Since I'm not currently commuting to a regular location daily, I am not using the Altor SAF Lock as the manufacturer intends. Even so, this is my #1 lock choice. But I live in a really high theft area (SF Bay Area) and I have always taken bike security seriously. I managed a campus bike shop that at the time in the 80's vied for the #1 worst theft location in the US with NY on a regular basis. And it's now WORSE than back then, thanks to powerful angle grinders.
Bike thieves using angle grinders in broad daylight is the new normal. Don't let it happen to you. Click here to see why #BikeThievesSuck
Bike thieves using angle grinders in broad daylight is the new normal. Don't let it happen to you.
Click here to see why #BikeThievesSuck
The SAF Lock is perfect for...
The SAF Lock is the ideal lock for keeping your bike safe overnight. It is specially designed to thwart any attempts to cut it. This isn't your everyday carry lock. This is the world's strongest lock.
Your E-bike is a valuable target for would-be thieves, and at 13.2 lbs (6.0 kg) the SAF Lock weighs less than many chain locks you may already be considering using. The only, and most important, difference is that those chains can be cut in under 45 seconds while the SAF Lock can't.
Has your bike been stolen? After years of designing and selling locks, we know that angle grinders defeat even the best of locks. Since the advent of the affordable portable angle grinder, thieves have increasingly traded up their bolt cutters for angle grinders. The SAF Lock is the first and only lock designed to combat this.
Bicycling Magazine took our lock to task and produced a comprehensive testing video. While it takes seconds to get through normal bicycle locks, it took Bicycling Magazine over an hour and multiple angle grinders, blades and batteries to get through our lock. Read and watch their complete review here.Read More
Angle Grinder Resistant
The combination of material and geometry of the SAF Tech shell quickly wears through angle grinder discs and batteries.
Designed from the ground up, the SAF Lock uses an eight disc disc-detainer lock mechanism with false gates and a unique key profile that makes picking as difficult as possible.
Resists Traditional Attacks
While the SAF Tech protects from angle grinders, The SAF Lock's through-hardened steel core shackle and anti-rotation locking bars stand up to the toughest of hand tools.
LockPickingLawyer Pick Test
The LockPickingLawyer says "the chances of this being picked on the streets are essentially zero". Watch as he picks the SAF Lock with a pick he custom made himself because there are no picks commercially available for the SAF Lock.
The Double SAF Lock comes with eight matching keys, so you can share with a friend and have a backup in case one is lost. Leave one at work and one at home, or share one with a friend
The interior of SAF Lock is the
same size as many U-locks.
The SAF Lock weighs less than some of the highest security chain locks on the market.
(Angle Grinder Dies First)
13.2 Pounds / 6000 Grams
Leading Chain Lock
(18 Second Cut Time)
15.25 Pounds / 6920 Grams
Lock Outer Width
Lock Outer Length
Lock Inner Width
Lock Inner Height