The continental race king ust 26 folding tyre weighing from only 430g in its two inch guise the race king is a lightweight flyer also available in a wider 22 version providing more cushioning and grip for larger riders or for dirt jumpers like martin soderstrom the race king is a proven winner with countless uci victories courtesy of the topeak ergon team with irina kalentieva at its head the black chili compound works its wonders on fast paced technical world cup tracks and marathon tr