In a way, the ZX5 is a lot like the CAT2000 : you HAVE to buy some options to make it work reliably

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IMHO, the Lazer is a more fragile then the CAT, especially the shock towers and the drivetrain, but I love the responsiveness of the Lazer. Also the Kyosho shocks demand as much attention like the original Schumacher CAT shocks.