Has anybody installed a Race Tech Gold Valve Kit on a ZX12R? I've purchased the kit and proper rate springs, but didn't buy new bushings. I'm planning on using the existing ones as long as I don't find they're too worn out upon disassembly. Is this a false economy? Are Race Tech's bushings any better than stock? My bike's got 18,000 kms. (about 12,000 miles) on it.
notb
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