The chain lock was already named, with all its positive qualities.
I have the 110 cm version acquired from having just the basic to more leeway to secure.
In order to mention it again, yes you need ne pannier or the thing goes in the backpack (like mine) to the thing easily mitzubekommen because it is bulky and weighs 2400 grams and yes Abus cheating in length, which gets 110 cm part the length through only castle which is certainly also true for the 85 he version.
And no one needs no lock because it is expensive but because it is good for what and to discourage any scumbags them to play this bike and to silver.
Also illuminated with the key like when it's late at night, at night, the Schliessmechanismuß also like it very much because it was properly constructed with what rhyme or reason.
I purchased it paralell to my pedelec and I find the 100 Euros (not cheap) but the quality reasonable.
Theft must not be worthwhile, be made too easy, to be welcoming.
What was already written this castle is probably just to crack a pagan event.
A useful update of the castle would still be able to put it under stress and who does not come with the appropriate key and rumfingert it ..... get one shot so he flies backwards through the rear plate glass window
PS I do not work with or for Abus. ;-)))