Yale YC2100 Double-Entry Lock Cylinder, YC2100 DB 40X50 NI

Good quality Yale lock, Easy and quick to install. Works great with the Nuki Smart Lock Pro (5th Generation). this was the may reason for buying this lock as it has the emergency function so the lock can operate with a key in Both ends of the lock at the same time. Not the most secure lock but a good price. Comes with plenty of keys, 5 to be exact but if you use it with a smart lock the keys will hardly ever be used, saying that they go into the lock easily.

This seems a high quality lock with the emergency function that allows it to be opened with a key from outside, with a key inserted inside. Other similar barrels from other makers are available but only at multiples of the price paid. Key is inserted horizontally and is a little more fiddly than a traditional Yale, but this seems common to the competition. 5 keys supplied a bonus. Fitted easily. Limited barrel lengths available however.

Keys are a bit figity to get in to the lock but love the lock due to having being able to open the door from the outside whilst a key is in the lock on the inside

great product and can always rely on decent quality with Yale... comes with five keys which is very useful... double entry lock perfect, easy to install

Fits well, easy install

Yale door lock replacement with 5 keys. Arrived in good time in packaging I would expect from Yale. I have bought some other "Yale" items from Amazon, that raise the above point. The change from the old lock to this new one took 15 minutes, it was my first time doing this job. The insertion of the keys from both sides was a little tight to start with, but it soon loosened up with use. Would I buy another = Yes.

After having issues with other brands - I purchased the yale - easy fit, works with keys on the other side and sturdy, let's see how long it lasts for - happy customer 👊

Before installing the lock I contacted Yale to get additional copies of the key but was told this is not a UK Yale cylinder and they are unable to provide copies with the A C code. They Yale UK keys should have an A B C or other letters combinations but not A C which makes it impossible to get original copies from them. My local locksmith chain said he was able to copy the key but it would cost me £27 per key, more than the lock is worth to get additional copies so I sent the lock back! I feel this should either not be sold or be clearly specified on the description.

Installé sur porte d’entrée principale depuis un mois et fonctionne bien. Prise en main des clé un peu petite par rapport a mon ancien cylindre mais on s’y fait vite. Sinon installation facile vis fournie. On ressent la qualité quand on insert et tourne la clé. Je recommande ce produit

It works very good

Fin kvalitet

Rápido y eficaz

Perfect, easy to install and much better than what I had originally. The reason I changed it, is that you can open this lock from the outside while you have a key in it from inside the door.