|Don's Home Products Bike Locks Contact|
Tools of the trade:
Angle Grinder Hydraulic Bottle Jack Frozen lock smashedMedium size bolt cutters (shown) can cut up to 12 mm.
- Expensive bike - In a big city or college campus - Leave it unattended for more than 1 hour - Combination locks are easier to pickYou-tube videos of thefts:
|U or D lock||$35-$100||13 mm |
|4 x 9" |
4 x 6"
|2.8 - 3.2 lbs |
|Most come with a bracket to mount on the frame of your bike.
Kryptonite New York Standard Heavy Duty Bicycle U Lock Bike Lock $85 ( 16 mm, 4x8", 4.5 lbs)
|Chain Lock||$15-120||9-12 mm||21"-30"||3.9 - 7 lbs||Can wrap around seat post
At 12 mm only the shortest chain lock is portable.
Kryptonite New York Fahgettaboudit 1415 Chain $130 (14 mm, 5', 15 lbs)
|Folding lock||$20-150||5 mm||33"||2.2 - 3.5 lbs||Most compact.
About the same internal space as a U-lock but flexible.
|Cable lock||$6-20||¼", ⅜" (9.5 mm) |
and ½" (12.7 mm) 1
|Std 4- 8' |
|0.7-2.2 lbs||Can wrap around seat post.
Where I used to live in the suburbs, there are no bike racks, so I had to wrap it around a tree at the grocery store. It required 6½' to go around a 1 1/2' diameter tree.
20 mm Kryptonite HardWire $46 (2 3/4' 3 lbs)
2. Length - Typical lengths - Cable and Chain locks must be twice as long to wrap around their anchor.
3. Weight - Anything over 4.5 lbs is difficult to cary around.
U-lock vs Chain lock: Which is best? | The Best Bike Lock says,
If youÕre looking for a portable lock to secure your bike in the street every day, then youÕre probably best off with a U-lock. Whereas if youÕre only looking for a lock to protect your bike at home or at work, then the best choice is a thick, high quality chain lock.
At 5 Things Bike Lock Companies DonÕt Want You to Know Daniel Idzkowski recommends SkunkLock which releases noxious chemicals when thieves try to cut through your lock.
Don't allow the lock to touch the ground where the thief can smash it with a hammer.
One blog post said "A person intent on stealing bikes can beat any lock in a short amount of time--no matter how much you paid for it. Make sure your bike looks like its worth less than it is, and alway park it next to a bike that's worth more and has an easier lock to pick."