REAR SPROCKET STEEL 51T-520 SC HUS/HUSQ/KTM 020-00115D This shell is reinforced by

This shell is reinforced by a metal shank inside and toe reinforcement co-injected in harder compound

Extended coverage: Additional upper arm padding for enhanced roost coverage

Excellent for extreme terrain

Full range of motion

Suitable for use with carbureted and fuel injected applications (up to 100 psi)

REAR SPROCKET STEEL 51T-520 SC HUS/HUSQ/KTM 020-00115D This shell is reinforced byTOP QUALITY AT ECONOMICAL PRICES Made exclusively from the finest Japanese 545C high carbon steel Heat treated and hand finished to meet or exceed O. E. M. standards Outlasts any mild steel or surface hardened sprocket as much as two or three times over OEM gearing is 48 Tooth rear 21 Tooth front All sprockets have 530 chain pitch