Hi there all just finished making a few ...
The difference with the ones that I have made to the original ones .
Is first of all they are made from aluminum so they are lighter
Also the problem with the original ones is that they have plastic parts that come off and get lost
So I decided to make them so that nothing could fall off so once fitted they would stay on .
Also made the tension tighter so if the chain has stretched it will still work ...(up to a point)