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Avoid a DQ for a dragging bumper.\u003c\/p\u003e\n\u003cp\u003eAvailable in three sizes - based on chassis tubing size:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e28mm (most Cadet karts and some 4-cycle specific karts)\u003c\/li\u003e\n\u003cli\u003e30mm (the majority of karts)\u003c\/li\u003e\n\u003cli\u003e32mm (some Shifter karts)\u003c\/li\u003e\n\u003c\/ul\u003e"}