If your'e building a standard stock road bike, to a standard i know your'e capable of Rob, i wouldn't be considering samco's, could never see the benefits other than bling factor, if it's because oem are unavailable, then go ahead, but use black, ( unless you want bling ), i think one of their selling points is they are supposed to run cooler, but on a stock road bike thats not commuting everyday, that shouldn't be a problem, shouldn't be a problem on track either, i also personally think they are overpriced for what they are.
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