Introduction:
The tread rubbers of HY tyres are specially formulated silica compounds to reduce cutting and further control heat in combination with the E3 tread class a low tread void ratio provides very high heat dissipation rates, important for a bias tyre to survive arduous mining applications. The open tread design provides a high degree of traction in all but the most severe conditions. The improvements are provided by the open design tread pattern with lug plaforms to tie the lug together aiding and improving traction and braking by 25%, with the correct maintenance plans HY bias tyres can achieve productivity and low cost, We have applied the patent for this pattern.

Size	PR	Tread Depth (mm)	Standard Rim	Inflation Tyre Dimension		Max Load (KG)				TT or TL
				Section Width	Overall Diameter	Max Speed	Pressure	Max Speed	Pressure
				(mm)	(mm)	60 km/h	Kpa	80 km/h	Kpa
27.00-49	48	42	19.5/4.0	735	2650	25000	575	43700	775	TL
33.00-51	68	50	24.00/5.0	895	2995	35500	575	61500	750	TL
36.00-51	58	55	26.00/5.0	990	3165	41200	525	71000	675	TL
40.00-57	68	68	29.00/6.0	1095	3535	54500	550	92500	725	TL
46/90-57	68	63	32.00/6.0	1160	3535	59000	550	100000	725	TL