Timing chain -PIAGGIO 2+3- Leader 125-200cc LC - 96 links.
Spare part in original equipment manufacturer quality!
The timing chain as well as the timing chain guide has to be inspected at regular intervals at around 10.000 km. Sluttery can become a very expensive experience. If the timing chain has excessive play it can it can jump over the teeth of the gears this causes trouble. If you are lucky the engine stalls, if you are unlucky the valves hit the piston and you do have a badly damaged engine.
An easy way of inspecting of the relevant components is to disassemble the spring of the timing chain guide and the timing chain itself. If you extract the dowel pin there is a tictac. If this ticks 4-6 times everything is spot on. If it ticks 2-3 times there is wear and the chain should be renewed.