Good idea - protects chain and trousers!

Before buying a Hebie Chainglider you should know the following, and note:
First:
It takes out the Voderteil offered here also a matching rump. For the hubs from Shimano, SRAM and Rohloff there doing different versions, so be careful when buying. With a derailleur, the Chainglider can not be used, individually nor the front part offered here.
Secondly:
You have to know exactly how many teeth the front of the bottom bracket and pinion has the chainring at the rear wheel. Again, there are different versions of Chainglider. So necessarily look before buying, or count and buy the right size.
Thirdly:
Chainring and sprocket must not have any mounted guard rings or shields but must be "naked" because of Chainglider otherwise not fit. Unfortunately, such shields and rings but many wheels fitted at the factory. These must therefore be removed before mounting. This is basically not a problem, but leads in some cases to that one then requires more parts, eg shorter Kettenblattschrauben if now lack the protection ring. Also you should check before buying, before you have to abort halfway through assembly.
This all sounds rather complicated, but if you have the above mentioned hurdles preparing then only once overcome and bought the matching Chainglider, assembly is itself no longer a problem. The Chainglider is simply placed and assembled on the chain. Tool is not required for this and the necessary technical skills go almost to zero. On careful assembly here is to pay attention, however, to allow the Chainglider not open while driving.
The Chainglider encloses the chain and chainring and sprocket then all and is on no more attachment to the chain. Although the Chainglider hence "drags" on the chain, when correctly installed and properly maintained chain thereof while driving is practically nothing to hear and feel. I am always amazed at how almost silently and smoothly the Chainglider runs, although he must somewhere have contact with the chain.
On unevenness, eg cobblestones, it comes, however, rattling noises, as well as the backward slide of the wheel or improperly tensioned chain also audible loops. But these are exceptions that have little impact in practice.
However, one should keep in mind (and it may well see) that the Chainglider not closes completely tight. It is still some moisture and dirt on the chain, although these influences are reduced in use under normal conditions by an estimated "at least 90 percent." As pants protect Chainglider even met a wholly owned operation. Here really can anything happen.
The advantages are thus the ease of installation without additional brackets to the frame, the amazing lightweight and silent running despite inevitable "slipping" design and very good to perfect protection of chain and trousers.
The disadvantages are the rattling when driving over uneven surfaces and the fact that a flat tire on the rear wheel on the road yet another part must be dismantled before the rear wheel can be removed.
The benefits outweigh my opinion, however, by far, so I can recommend the Chainglider fully.