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Chain	No.80
Pitch	(P)	25.4 mm
Internal Width	(W)	15.88 mm
Roller Dia.	(Dr)	15.88 mm
Teeth Width	(T)	14.6 mm

Sprocket No.		Outside Dia.Do	Pitch Dia.Dp	Bore Dia.			Hub		Weight(kg)
Type	Z	Outside Dia.Do	Pitch Dia.Dp	Stock Bore	Min.	Max	BD	BL	Weight(kg)
NK80B	9	85	74.27	16	18	35	*58	40	0.87
	10	93	82.19	16	18	32	52	40	1.02
	11	102	90.16	16	18	38	60	40	1.25
	12	110	98.14	16	18	45	67	40	1.60
	13	118	106.14	16	18	51	77	40	1.90
	14	127	114.15	16	18	51	77	40	2.15
	15	135	122.17	20	22	63	93	40	2.30
	16	143	130.20	20	22	63	93	40	2.50
	17	151	138.23	20	22	63	93	40	2.95
	18	159	146.27	20	22	63	93	40	3.15
	19	167	154.32	20	22	63	93	40	3.40
	20	176	162.37	20	22	63	93	40	3.60
	21	184	170.42	20	22	63	93	40	3.85
	22	192	178.48	26	28	75	107	45	5.00
	23	200	186.54	26	28	75	107	45	5.23
	24	208	194.60	26	28	75	107	45	5.50
	25	216	202.66	26	28	75	107	45	5.80
	26	224	210.72	26	28	75	107	45	6.10
	27	233	218.79	26	28	75	107	45	6.40
	28	241	226.86	26	28	75	107	45	6.75
	29	249	234.93	26	28	75	107	45	7.10
	30	257	243.00	26	28	75	107	45	7.40
	31	265	251.07	26	28	75	107	45	7.80
	32	273	259.14	26	28	75	107	45	8.15
	33	281	267.21	26	28	75	107	45	8.50
	34	289	275.29	26	28	75	107	45	8.90
	35	297	283.36	26	28	75	107	45	9.30
	36	306	291.43	26	28	80	117	50	10.60
	37	314	299.51	26	28	80	117	50	11.00
	38	322	307.58	26	28	80	117	50	11.40
	39	330	315.66	26	28	80	117	50	11.90
	40	338	323.74	26	28	80	117	50	12.40
	41	346	331.81	26	28	80	117	50	12.80
	42	354	339.89	26	28	80	117	50	13.30
	43	362	347.97	26	28	80	117	50	13.80
	44	370	356.04	26	28	80	117	50	14.30
	45	378	364.12	26	28	80	117	50	14.90
	46	387	372.20	26	28	80	117	50	15.30
	47	395	380.28	26	28	80	117	50	15.70
	48	403	388.36	26	28	80	117	50	15.80
	50	419	404.52	26	28	80	117	50	17.65
	52	435	420.68	26	28	80	117	50	18.70
	53	443	428.76	26	28	80	117	50	19.30
	54	451	436.84	26	28	80	117	50	20.00
	55	459	444.92	26	28	80	117	50	20.60
	56	468	453.00	26	28	80	117	50	21.30
	58	484	469.16	26	28	80	117	50	22.55
	60	500	485.33	26	28	80	117	50	23.10
	65	540	525.73	26	28	89	127	63	29.40
	70	581	566.15	26	28	89	127	63	32.10
	75	621	606.56	26	28	89	127	63	36.20
	80	662	646.97	26	28	95	137	71	42.90
	90	743	727.80	26	28	95	137	71	53.00

NK Standard Sprockets B Type NK80B

NK Standard Sprockets B Type NK80B

Z	S	GD
9	10.4	44