I've just upgraded to the '18 from the old car which had the carbon chassis with narrow rear hangers, and the rest of the usual alu hop ups. Although those upgrades made a big difference, the '18 is better still. But if your gonna upgrade instead of buying new kit, I'd get the '18 alu chassis and the narrow hangers.
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Mark Gudgeon
Xray XB2 '18
Xray XB4 '18
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