Easy to assemble, no need to take of cranks or chain-rings, very light weight, works!

Don't know yet

As any man would, I tried to figure out how to use it without looking in the short and simple instruction sheet... Duuh! Gave that up quickly, and had a look at the instructions, and 5 minutes later the job was done. Easy to get on the bike, no need to take of any other parts first. As I already have a e-13 bash-guard, I wasn't able to use the 'right guide plate'. I get the front 'distance-bush' to almost rest on top of the bash-guard. The rear-distance bush is also really close, so there is no where for the chain to go. Only ridden with it a few times, but it keeps the chain in place. Before, the chain would skip of every now and then on very bumpy stuff, such as long stair cases. Remains to be seen how tough and long lasting it is. Will post photos on the forum soon...