Bike Gearing
Std. Road Bike			Std BF PRP			BF PRP Ron Neher Special			BF PRP Ron Neher Special
Front	Rear	Gear Inches	Front	Rear	Gear Inches	Front	Rear	Gear Inches	MPH @ 80 RPM	MPH @ 90 RPM	MPH @ 100 RPM	MPH @ 120 RPM
53	12	119	53	9	118	62	9	138	33	37	42	50
53	13	110	53	10	106	62	10	124	30	34	37	45
53	14	102	53	11	96	62	11	113	27	31	34	41
53	15	95	53	13	82	62	13	95	23	26	29	35
53	17	84	53	15	71	62	15	83	20	22	25	30
53	19	75	53	17	62	62	17	73	18	20	22	26
53	21	68	53	20	53	62	20	62	15	17	19	22
53	23	62	53	23	46	62	23	54	13	15	16	20
53	25	57	53	26	41	62	26	48	12	13	14	17
39	12	88	39	9	87	50	9	111	27	30	34	40
39	13	81	39	10	78	50	10	100	24	27	30	36
39	14	75	39	11	71	50	11	91	22	25	27	33
39	15	70	39	13	60	50	13	77	19	21	23	28
39	17	62	39	15	52	50	15	67	16	18	20	24
39	19	55	39	17	46	50	17	59	14	16	18	21
39	21	50	39	20	39	50	20	50	12	14	15	18
39	23	46	39	23	34	50	23	43	11	12	13	16
39	25	42	39	26	30	50	26	38	9	10	12	14