《周礼·冬官考工记·轮人&輈人》
因此用轮高六尺六寸的六分之一做牙围。牙围的三分之二加油漆。
是故六分其轮崇，以其一为之牙围，参分其牙围，而漆其二。
Hence, take 1/6 of the six feet and six inches for the circumference of the felloe. Color 2/3 of the circumference of the felloe with oil paint.