Details

- CNC-machined 6061-T6 aluminum with rounded tooth profile to reduce chain wear

Part Numbers

Option	UPC	MPN	Store SKU
Black / 38t	639266089834	BX-CR144B38T-BK	COS3016898K
Black / 42t	639266089872	BX-CR144B42T-BK	BOX26440418K