SIZE	PLY	PATTERN	TREAD DEPTH (MM)	RIM WIDTH	MAX SECTION WIDTH (MM)	OVERALL TIRE DIAMETER (MM)	MAX LOAD (LBS)	PSI
18×8.50-8	2	AP305	8.1	7.00	210	457	815	22
18×8.50-8	4	AP305	8.1	7.00	210	457	1050	34